class SSHTimeout(Rule):
'''This rule will configure the ssh timeout period for
ssh sessions, if ssh is installed.
@author: dwalker
'''
def __init__(self, config, environ, logger, statechglogger):
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rootrequired = True
self.rulenumber = 127
self.rulename = 'SSHTimeout'
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.boolCi = self.initCi(
"bool", "SSHTIMEOUTON",
"To disable this rule set the value " + "of SSHTIMEOUTON to False",
True)
self.intCi = self.initCi(
"int", "SSHTIMEOUT", "Set your preferred timeout value here, " +
"in seconds. Default is 900 (15 minutes).", 900)
self.guidance = ['NSA 3.5.2.3']
self.iditerator = 0
self.editor = ""
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
}
}
self.ph = Pkghelper(self.logger, self.environ)
def report(self):
'''SSHTimeout.report(): produce a report on whether or not a valid
time for timing out of ssh is set.
@author: D.Walker
'''
try:
self.detailedresults = ""
compliant = True
results = ""
timeout = self.intCi.getcurrvalue()
if self.environ.getostype() == "Mac OS X":
self.path = '/private/etc/ssh/sshd_config'
self.tpath = '/private/etc/ssh/sshd_config.tmp'
else:
self.path = '/etc/ssh/sshd_config'
self.tpath = '/etc/ssh/sshd_config.tmp'
if self.ph.manager == "zypper":
openssh = "openssh"
else:
openssh = "openssh-server"
if not self.ph.check(openssh):
self.compliant = True
self.detailedresults += "Package " + openssh + " is not installed.\nNothing to configure."
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
return self.compliant
self.ssh = {
"ClientAliveInterval": str(timeout),
"ClientAliveCountMax": "0"
}
if os.path.exists(self.path):
compliant = True
kvtype = "conf"
intent = "present"
self.editor = KVEditorStonix(self.statechglogger, self.logger,
kvtype, self.path, self.tpath,
self.ssh, intent, "space")
if not self.editor.report():
compliant = False
results += "Settings in " + self.path + " are not " + \
"correct\n"
if not checkPerms(self.path, [0, 0, 0o644], self.logger):
compliant = False
results += self.path + " permissions are incorrect\n"
else:
compliant = False
results += self.path + " does not exist\n"
self.detailedresults = results
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
'''SSHTimeout.fix(): set the correct values in /etc/ssh/sshd_config
so that ssh sessions time out appropriately.
@author: D.Walker
'''
try:
if not self.boolCi.getcurrvalue():
return
debug = "inside fix method\n"
self.logger.log(LogPriority.DEBUG, debug)
created = False
self.iditerator = 0
success = True
self.detailedresults = ""
debug = ""
# clear out event history so only the latest fix is recorded
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if self.environ.getostype() != "Mac OS X":
if self.ph.manager == "zypper":
openssh = "openssh"
else:
openssh = "openssh-server"
if not self.ph.check(openssh):
debug = "openssh-server is not installed in fix\n"
self.logger.log(LogPriority.DEBUG, debug)
if self.ph.checkAvailable(openssh):
debug = "openssh-server is not available in fix\n"
self.logger.log(LogPriority.DEBUG, debug)
if not self.ph.install(openssh):
debug = "Unable to install openssh-server\n"
self.logger.log(LogPriority.DEBUG, debug)
self.rulesuccess = False
return
else:
cmd = self.ph.getRemove() + openssh
event = {
"eventtype": "commandstring",
"command": cmd
}
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.statechglogger.recordchgevent(myid, event)
self.detailedresults += "Installed openssh-server\n"
self.editor = KVEditorStonix(
self.statechglogger, self.logger, "conf",
self.path, self.tpath, self.ssh, "present",
"space")
self.editor.report()
else:
debug += "openssh-server not available to install\n"
self.logger.log(LogPriority.DEBUG, debug)
self.rulesuccess = False
return
if not os.path.exists(self.path):
createFile(self.path, self.logger)
created = True
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": self.path}
self.statechglogger.recordchgevent(myid, event)
self.editor = KVEditorStonix(self.statechglogger, self.logger,
"conf", self.path, self.tpath,
self.ssh, "present", "space")
self.editor.report()
if os.path.exists(self.path):
print("path exists\n")
if not checkPerms(self.path, [0, 0, 0o644], self.logger):
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.path, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
debug += "Unable to set Permissions \
for: " + self.editor.getPath() + "\n"
success = False
else:
if not setPerms(self.path, [0, 0, 0o644], self.logger):
success = False
if self.editor.fixables:
print(("editor has fixables and they are " +
str(self.editor.fixables) + "\n"))
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor.setEventID(myid)
if self.editor.fix():
debug += "kveditor fix ran successfully\n"
if self.editor.commit():
debug += "kveditor commit ran successfully\n"
os.chown(self.path, 0, 0)
os.chmod(self.path, 0o644)
if re.search("linux", self.environ.getosfamily()):
resetsecon(self.path)
else:
debug += "Unable to complete kveditor commit\n"
success = False
else:
debug += "Unable to complete kveditor fix\n"
success = False
self.rulesuccess = success
if debug:
self.logger.log(LogPriority.DEBUG, debug)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class SecureMDNS(Rule):
'''The Avahi daemon implements the DNS Service Discovery and Multicast DNS
protocols, which provide service and host discovery on a network. It allows
a system to automatically identify resources on the network, such as
printers or web servers. This capability is also known as mDNSresponder
and is a major part of Zeroconf networking. By default, it is enabled.
This rule makes a number of configuration changes to the avahi service
in order to secure it.
@change: 04/16/2014 ekkehard ci and self.setkvdefaultscurrenthost updates
'''
def __init__(self, config, environ, logger, statechglogger):
'''
Constructor
'''
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 135
self.rulename = 'SecureMDNS'
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.rootrequired = True
self.compliant = False
self.rulesuccess = True
self.guidance = [
'NSA(3.7.2)', 'CCE 4136-8', 'CCE 4409-9', 'CCE 4426-3',
'CCE 4193-9', 'CCE 4444-6', 'CCE 4352-1', 'CCE 4433-9',
'CCE 4451-1', 'CCE 4341-4', 'CCE 4358-8', 'CCE-RHEL7-CCE-TBD 2.5.2'
]
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
}
}
# set up command helper object
self.ch = CommandHelper(self.logger)
# init helper classes
self.sh = ServiceHelper(self.environ, self.logger)
self.serviceTarget = ""
if self.environ.getostype() == "Mac OS X":
self.ismac = True
self.hasSIP = False
self.plb = "/usr/libexec/PlistBuddy"
osxversion = str(self.environ.getosver())
versplit = osxversion.split(".")
if len(versplit) > 2:
minorVersion = int(versplit[1])
releaseVersion = int(versplit[2])
elif len(versplit) == 2:
minorVersion = int(versplit[1])
releaseVersion = 0
else:
self.logger.log(LogPriority.ERROR,
"Unexpected version string length")
raise Exception
if minorVersion == 10 and releaseVersion < 4:
self.service = "/System/Library/LaunchDaemons/com.apple." + \
"discoveryd.plist"
self.servicename = "com.apple.networking.discoveryd"
self.parameter = "--no-multicast"
self.pbr = self.plb + " -c Print " + self.service + \
" | grep 'no-multicast'"
self.pbf = self.plb + ' -c "Add :ProgramArguments: string ' + \
self.parameter + '" ' + self.service
elif minorVersion > 10:
self.hasSIP = True
self.service = "/System/Library/LaunchDaemons/" + \
"com.apple.mDNSResponder.plist"
self.servicename = "com.apple.mDNSResponder.reloaded"
self.parameter = "NoMulticastAdvertisements"
self.preferences = "/Library/Preferences/" + \
"com.apple.mDNSResponder.plist"
self.pbr = self.plb + " -c Print " + self.preferences + \
" | grep 'NoMulticastAdvertisements'"
self.pbf = "defaults write " + self.preferences + " " + \
self.parameter + " -bool YES"
else:
self.service = "/System/Library/LaunchDaemons/" + \
"com.apple.mDNSResponder.plist"
if minorVersion >= 10:
self.servicename = "com.apple.mDNSResponder.reloaded"
else:
self.servicename = "com.apple.mDNSResponder"
self.parameter = "-NoMulticastAdvertisements"
self.pbr = self.plb + " -c Print " + self.service + \
" | grep 'NoMulticastAdvertisements'"
self.pbf = self.plb + ' -c "Add :ProgramArguments: string ' + \
self.parameter + '" ' + self.service
else:
self.ismac = False
# init CIs
datatype = 'bool'
mdnskey = 'SECUREMDNS'
avahikey = 'DISABLEAVAHI'
mdnsinstructions = 'To configure the Avahi server daemon ' + \
'securely set the value of SECUREMDNS to True and the ' + \
'value of DISABLEAVAHI to False.'
avahiinstructions = 'To completely disable the Avahi server ' + \
'daemon rather than configure it, set the value of ' + \
'DISABLEAVAHI to True and the value of SECUREMDNS to False.'
mdnsdefault = False
avahidefault = True
self.SecureMDNS = self.initCi(datatype, mdnskey, mdnsinstructions,
mdnsdefault)
self.DisableAvahi = self.initCi(datatype, avahikey,
avahiinstructions, avahidefault)
self.configparser = configparser.SafeConfigParser()
self.confavahidict = {
'use-ipv6': {
'section': 'server',
'val': 'no'
},
'check-response-ttl': {
'section': 'server',
'val': 'yes'
},
'disallow-other-stacks': {
'section': 'server',
'val': 'yes'
},
'disable-publishing': {
'section': 'publish',
'val': 'yes'
},
'disable-user-service-publishing': {
'section': 'publish',
'val': 'yes'
},
'publish-addresses': {
'section': 'publish',
'val': 'no'
},
'publish-hinfo': {
'section': 'publish',
'val': 'no'
},
'publish-workstation': {
'section': 'publish',
'val': 'no'
},
'publish-domain': {
'section': 'publish',
'val': 'no'
}
}
self.confoptions = {
'server': {
'use-ipv6': 'no',
'check-response-ttl': 'yes',
'disallow-other-stacks': 'yes'
},
'publish': {
'disable-publishing': 'yes',
'disable-user-service-publishing': 'yes',
'publish-addresses': 'no',
'publish-hinfo': 'no',
'publish-workstation': 'no',
'publish-domain': 'no'
}
}
self.iditerator = 0
def report(self):
'''The report method examines the current configuration and determines
whether or not it is correct. If the config is correct then the
self.compliant, self.detailed results and self.currstate properties are
updated to reflect the system status. self.rulesuccess will be updated
if the rule does not succeed.
:returns: bool
@author: Breen Malmberg
@change: dwalker - added conditional call to reportmac()
@change: Breen Malmberg - 12/05/2017 - removed unnecessary argument
"serviceTarget" in linux-only call to servicehelper; removed
assignment of unused local variable serviceTarget to self.servicename
since servicename is not assigned in the linux code logic path (which
was resulting in variable referenced before assignment error)
'''
try:
# defaults
compliant = True
self.detailedresults = ''
self.rulesuccess = True
# if system is a mac, run reportmac
if self.ismac:
compliant = self.reportmac()
# if not mac os x, then run this portion
else:
self.editor = None
# set up package helper object only if not mac os x
self.pkghelper = Pkghelper(self.logger, self.environ)
# if the disableavahi CI is set, we want to make sure it is
# completely disabled
if self.DisableAvahi.getcurrvalue():
self.package = "avahi-daemon"
# if avahi-daemon is still running, it is not disabled
if self.sh.auditService('avahi-daemon'):
compliant = False
self.detailedresults += 'DisableAvahi has been ' + \
'set to True, but avahi-daemon service is ' + \
'currently running.\n'
self.numdependencies = 0
if self.pkghelper.determineMgr() == 'yum' or \
self.pkghelper.determineMgr() == 'dnf':
self.package = "avahi"
# The following KVEditor for /etc/sysconfig/network is
# used to meet the zeroconf requirement in
# CCE-RHEL7-CCE-TBD 2.5.2
path = "/etc/sysconfig/network"
self.path = path
if os.path.exists(path):
tmppath = path + ".tmp"
data = {"NOZEROCONF": "yes"}
self.editor = KVEditorStonix(
self.statechglogger, self.logger, "conf", path,
tmppath, data, "present", "closedeq")
if not self.editor.report():
self.compliant = False
self.detailedresults += path + " does not " + \
"have the correct settings.\n"
else:
self.compliant = False
self.detailedresults += path + " does not exist.\n"
self.numdependencies = \
self.parseNumDependencies(self.package)
if self.numdependencies <= 3:
if self.pkghelper.check(self.package):
compliant = False
self.detailedresults += 'DisableAvahi is ' + \
'set to True, but Avahi is currently ' + \
'installed.\n'
else:
self.detailedresults += 'Avahi has too many ' + \
'dependent packages. Will not attempt to ' + \
'remove it.\n'
elif self.pkghelper.determineMgr() == "zypper":
self.package = "avahi"
elif self.pkghelper.check(self.package):
compliant = False
self.detailedresults += 'DisableAvahi is ' + \
'set to True, but Avahi is currently ' + \
'installed.\n'
# otherwise if the securemdns CI is set, we want to make sure
# it is securely configured
if self.SecureMDNS.getcurrvalue():
# if the config file is found, proceed
if os.path.exists('/etc/avahi/avahi-daemon.conf'):
kvtype = "tagconf"
intent = "present"
filepath = '/etc/avahi/avahi-daemon.conf'
tmpfilepath = '/etc/avahi/avahi-daemon.conf.stonixtmp'
conftype = "closedeq"
self.avahiconfeditor = KVEditorStonix(
self.statechglogger, self.logger, kvtype, filepath,
tmpfilepath, self.confoptions, intent, conftype)
self.avahiconfeditor.report()
if self.avahiconfeditor.fixables:
compliant = False
self.detailedresults += "\nThe following configuration options are missing or incorrect in " + str(
filepath) + ":\n" + "\n".join(
self.avahiconfeditor.fixables)
# if config file not found, check if avahi is installed
else:
# if not installed, we can't configure anything
if not self.pkghelper.check('avahi'):
self.detailedresults += 'Avahi Daemon not ' + \
'installed. Cannot configure it.\n'
compliant = True
self.logger.log(LogPriority.DEBUG,
self.detailedresults)
# if it is installed, then the config file is missing
else:
compliant = False
self.detailedresults += 'Avahi is installed ' + \
'but could not find config file in ' + \
'expected location.\n'
self.logger.log(LogPriority.DEBUG,
self.detailedresults)
self.compliant = compliant
except (IOError):
self.detailedresults += '\n' + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def reportmac(self):
'''check for configuration items needed for mac os x
:returns: bool
@author: Breen Malmberg
@change: dwalker - implemented kveditor defaults
'''
try:
self.detailedresults = ""
# See if parameter is set
self.ch.executeCommand(self.pbr)
resultOutput = self.ch.getOutput()
if len(resultOutput) >= 1:
if (resultOutput[0] == ""):
commandsuccess = False
self.detailedresults += "Parameter: " + str(self.parameter) + \
" for service " + self.servicename + " is not set.\n"
else:
commandsuccess = True
debug = "Parameter: " + str(self.parameter) + \
" for service " + self.servicename + \
" is set correctly."
self.logger.log(LogPriority.DEBUG, debug)
else:
commandsuccess = False
self.detailedresults += "Parameter: " + str(self.parameter) + \
" for service " + self.servicename + " is not set.\n"
# see if service is running
if not re.match("^10.11", self.environ.getosver()):
servicesuccess = self.sh.auditService(
self.service, serviceTarget=self.servicename)
else:
servicesuccess = self.sh.auditService(
self.service, serviceTarget=self.servicename)
if servicesuccess:
debug = "Service: " + str(self.service) + ", " + \
self.servicename + " audit successful."
self.logger.log(LogPriority.DEBUG, debug)
else:
self.detailedresults += "Service: " + str(self.service) + \
", " + self.servicename + " audit failed.\n"
if servicesuccess and commandsuccess:
return True
else:
return False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
raise
return self.compliant
def fix(self):
'''The fix method will apply the required settings to the system.
self.rulesuccess will be updated if the rule does not succeed.
@author: Breen Malmberg
@change: dwalker - added statechglogger findrulechanges and deleteentry
@changed: Breen Malmberg - 12/05/2017 - removed unnecessary servicetarget
'''
try:
self.rulesuccess = True
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
self.detailedresults = ""
# if this system is a mac, run fixmac()
if self.ismac:
self.rulesuccess = self.fixmac()
# if not mac os x, run this portion
else:
# if DisableAvahi CI is enabled, disable the avahi service
# and remove the package
if self.DisableAvahi.getcurrvalue():
avahi = self.package
avahid = 'avahi-daemon'
if self.sh.auditService(avahid):
debug = "Disabling " + avahid + " service"
self.logger.log(LogPriority.DEBUG, debug)
self.sh.disableService(avahid)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "servicehelper",
"servicename": avahid,
"startstate": "enabled",
"endstate": "disabled"
}
self.statechglogger.recordchgevent(myid, event)
if self.environ.getosfamily() == 'linux' and \
self.pkghelper.check(avahi):
if self.numdependencies <= 3:
self.pkghelper.remove(avahi)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "pkghelper",
"pkgname": avahi,
"startstate": "installed",
"endstate": "removed"
}
self.statechglogger.recordchgevent(myid, event)
else:
debug += 'Avahi package has too many dependent ' \
+ 'packages. Will not attempt to remove.\n'
self.logger.log(LogPriority.DEBUG, debug)
if self.pkghelper.determineMgr() == 'yum' or \
self.pkghelper.determineMgr() == 'dnf':
path = self.path
if not os.path.exists(path):
if createFile(path, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator,
self.rulenumber)
event = {
"eventtype": "creation",
"filepath": path
}
self.statechglogger.recordchgevent(myid, event)
else:
self.rulesuccess = False
self.detailedresults += "Failed to create " + \
"file: " + path + ".\n"
if self.editor is None:
tmppath = path + ".tmp"
data = {"NOZEROCONF": "yes"}
self.editor = KVEditorStonix(
self.statechglogger, self.logger, "conf", path,
tmppath, data, "present", "closedeq")
if not self.editor.report():
if self.editor.fix():
self.iditerator += 1
myid = iterate(self.iditerator,
self.rulenumber)
self.editor.setEventID(myid)
if not self.editor.commit():
self.rulesuccess = False
self.detailedresults += "Could not " + \
"commit changes to " + path + ".\n"
else:
self.rulesuccess = False
self.detailedresults += "Could not fix " + \
"file " + path + ".\n"
# if SecureMDNS CI is enabled, configure avahi-daemon.conf
if self.SecureMDNS.getcurrvalue():
# if config file is present, proceed
avahiconf = '/etc/avahi/avahi-daemon.conf'
if os.path.exists(avahiconf):
if self.avahiconfeditor.fixables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.avahiconfeditor.setEventID(myid)
if not self.avahiconfeditor.fix():
self.rulesuccess = False
debug = "KVEditor fix for " + avahiconf + \
"failed"
self.logger.log(LogPriority.DEBUG, debug)
elif not self.avahiconfeditor.commit():
self.rulesuccess = False
debug = "KVEditor commit for " + avahiconf + \
"failed"
self.logger.log(LogPriority.DEBUG, debug)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
setPerms(avahiconf, [0, 0, 0o644], self.logger,
self.statechglogger, myid)
resetsecon(avahiconf)
# if config file is not present and avahi not installed,
# then we can't configure it
else:
if not self.pkghelper.check(avahi):
debug = 'Avahi Daemon not installed. ' + \
'Cannot configure it.'
self.logger.log(LogPriority.DEBUG, debug)
else:
self.detailedresults += 'Avahi daemon ' + \
'installed, but could not locate the ' + \
'configuration file for it.\n'
self.rulesuccess = False
except IOError:
self.detailedresults += '\n' + traceback.format_exc()
self.logger.log(LogPriority.DEBUG, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixmac(self):
'''apply fixes needed for mac os x
@author: Breen Malmberg
@change: dwalker - implemented kveditor instead of direct editing
'''
try:
self.detailedresults = ""
success = True
# See if parameter is set
self.ch.executeCommand(self.pbr)
resultOutput = self.ch.getOutput()
if len(resultOutput) >= 1:
if (resultOutput[0] == ""):
fixit = True
else:
fixit = False
else:
fixit = True
# Add parameter
if fixit:
# Due to weaknesses in using PlistBuddy and defaults to delete
# from plists, as well as shortcomings in STONIX's state change
# logging, we will record this change as a file deletion.
# If the rule's undo is run on OS X, it will restore the
# previous version of this file.
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if self.hasSIP:
self.statechglogger.recordfiledelete(
self.preferences, myid)
else:
self.statechglogger.recordfiledelete(self.service, myid)
self.ch.executeCommand(self.pbf)
resultOutput = self.ch.getOutput()
errorcode = self.ch.getReturnCode()
if errorcode == 0:
debug = self.parameter + " was set successfully!"
self.logger.log(LogPriority.DEBUG, debug)
else:
self.detailedresults += self.parameter + \
" was not set successfully!\n"
self.statechglogger.deleteentry(myid)
success = False
else:
debug = self.parameter + " was already set!"
self.logger.log(LogPriority.DEBUG, debug)
# Reload Service
if success:
success = self.sh.reloadService(self.service,
serviceTarget=self.servicename)
if success:
debug = "Service: " + str(self.service) + ", " + \
self.servicename + " was reloaded successfully."
self.logger.log(LogPriority.DEBUG, debug)
else:
debug = "Service: " + str(self.service) + ", " + \
self.servicename + " reload failed!"
self.logger.log(LogPriority.DEBUG, debug)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
success = False
raise
return success
def parseNumDependencies(self, pkgname):
'''parse output of yum command to determine number of dependent packages
to the given pkgname
:param pkgname:
:returns: int
@author: Breen Malmberg
'''
numdeps = 0
flag = 0
try:
if self.pkghelper.determineMgr() == 'zypper':
command = ['zypper', 'info', '--requires', pkgname]
self.ch.executeCommand(command)
output = self.ch.getOutput()
for line in output:
if flag:
numdeps += 1
if re.search('Requires:', line):
flag = 1
elif self.pkghelper.determineMgr() == 'yum':
command = ['yum', '--assumeno', 'remove', pkgname]
self.ch.wait = False
self.ch.executeCommand(command)
output = self.ch.getOutput()
for line in output:
if re.search('Dependent packages\)', line):
sline = line.split('(+')
if len(sline) < 2:
return numdeps
cline = [
int(s) for s in sline[1].split() if s.isdigit()
]
numdeps = int(cline[0])
elif self.pkghelper.determineMgr() == 'dnf':
command = ['dnf', '--assumeno', 'remove', pkgname]
self.ch.wait = False
self.ch.executeCommand(command)
output = self.ch.getOutput()
for line in output:
if re.search('Dependent packages\)', line):
sline = line.split('(+')
if len(sline) < 2:
return numdeps
cline = [
int(s) for s in sline[1].split() if s.isdigit()
]
numdeps = int(cline[0])
elif self.pkghelper.determineMgr() == 'apt-get':
command = ['apt-cache', 'depends', pkgname]
self.ch.executeCommand(command)
output = self.ch.getOutput()
for line in output:
if re.search('Depends:', line):
numdeps += 1
else:
self.detailedresults += 'Unable to detect package manager\n'
return numdeps
except (IOError, OSError):
self.detailedresults += 'Specified package: ' + str(pkgname) + \
' not found.\n'
return numdeps
except Exception:
raise
return numdeps
class DisableWeakAuthentication(Rule):
'''This rule will remove rsh(server and client) if installed, remove
pam_rhosts entry from any pam file,
'''
def __init__(self, config, environ, logger, statechglogger):
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 30
self.rulename = "DisableWeakAuthentication"
self.mandatory = True
self.formatDetailedResults("initialize")
self.guidance = ["NSA 3.2.3.1"]
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd']
}
# Configuration item instantiation
datatype = 'bool'
key = 'DISABLEWEAKAUTHENTICATION'
instructions = "To prevent the disabling of services using weak " + \
"authentication set DISABLEWEAKAUTHENTICATION to False."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
self.rsh = ["rshell", "rsh-client", "rsh-server", "rsh", "SUNWrcmdc"]
self.pams = [
"/etc/pam.conf", "/etc/pam_ldap.conf", "/etc/pam.conf-winbind"
]
self.incorrects = []
self.iditerator = 0
self.sethelptext()
def report(self):
'''DisableWeakAuthentication.report() Public method to report on the
presence of certain r-command packages and contents in pam files.
@author: dwalker
:returns: bool - False if the method died during execution
'''
self.detailedresults = ""
try:
self.helper = Pkghelper(self.logger, self.environ)
compliant = True
for item in self.rsh:
if self.helper.check(item):
compliant = False
self.detailedresults += item + " is still installed\n"
break
for item in self.pams:
found = False
if os.path.exists(item):
contents = readFile(item, self.logger)
if contents:
for line in contents:
if re.match('^#', line) or \
re.match(r'^\s*$', line):
continue
elif re.search("pam_rhosts", line):
found = True
compliant = False
self.detailedresults += "pam_rhosts line " + \
"found in " + item + "\n"
break
if found:
self.incorrects.append(item)
if not checkPerms(item, [0, 0, 420], self.logger):
compliant = False
self.detailedresults += "Permissions for " + \
item + " are incorrect\n"
if os.path.exists("/etc/pam.d/"):
fileItems = glob.glob("/etc/pam.d/*")
for item in fileItems:
found = False
if os.path.islink(item) or os.path.isdir(item):
continue
contents = readFile(item, self.logger)
if not contents:
continue
for line in contents:
if re.match('^#', line) or re.match(r'^\s*$', line):
continue
elif re.search("pam_rhosts", line):
found = True
compliant = False
self.detailedresults += "pam_rhosts line " + \
"found in " + item + "\n"
break
if found:
self.incorrects.append(item)
for item in fileItems:
if os.path.islink(item) or os.path.isdir(item):
continue
if not checkPerms(item, [0, 0, 420], self.logger):
compliant = False
self.detailedresults += "Permissions for " + \
item + " are incorrect\n"
break
if self.incorrects:
debug = "The following files need to be corrected: " + \
str(self.incorrects) + "\n\n"
self.logger.log(LogPriority.DEBUG, debug)
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
'''DisableWeakAuthentication.fix() Public method to fix any issues
that were found in the report method.
@author: dwalker
:returns: bool - False if the method died during execution
'''
try:
self.detailedresults = ""
if not self.ci.getcurrvalue():
return
success = True
for item in self.rsh:
if self.helper.check(item):
if not self.helper.remove(item):
success = False
if self.incorrects:
for item in self.incorrects:
tempstring = ""
contents = readFile(item, self.logger)
if not contents:
continue
for line in contents:
if re.match('^#', line) or re.match(r'^\s*$', line):
tempstring += line
elif re.search("pam_rhosts", line):
continue
else:
tempstring += line
if not checkPerms(item, [0, 0, 420], self.logger):
if not setPerms(item, [0, 0, 420], self.logger):
success = False
tmpfile = item + ".tmp"
if writeFile(tmpfile, tempstring, self.logger):
os.rename(tmpfile, item)
os.chown(item, 0, 0)
os.chmod(item, 420)
resetsecon(item)
else:
success = False
for item in self.pams:
if os.path.exists(item):
if not checkPerms(item, [0, 0, 420], self.logger):
if not setPerms(item, [0, 0, 420], self.logger):
success = False
if os.path.exists("/etc/pam.d/"):
fileItems = glob.glob("/etc/pam.d/*")
for item in fileItems:
if not checkPerms(item, [0, 0, 420], self.logger):
if not setPerms(item, [0, 0, 420], self.logger):
success = False
return success
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def undo(self):
'''There is no undo method for this rule since we don't ever want rsh
installed or for the r services to be enabled. Overrides the undo
inside the rule.py class
'''
try:
info = "no undo available"
self.logger.log(LogPriority.INFO, info)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
return False
class SecureSquidProxy(Rule):
def __init__(self, config, enviro, logger, statechglogger):
Rule.__init__(self, config, enviro, logger, statechglogger)
self.logger = logger
self.rulenumber = 143
self.rulename = "SecureSquidProxy"
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
datatype1 = "bool"
key1 = "SECURESQUIDPROXY"
instructions1 = "To disable this rule set the value of " + \
"SECURESQUIDPROXY to False. MinimizeServices rule disables " + \
"squid by default however this rule will still configure it " + \
"if installed"
default1 = True
self.ci = self.initCi(datatype1, key1, instructions1, default1)
self.guidance = ["NSA 3.19", "CCE 4454-5", "CCE 4353-9", "CCE 4503-9",
"CCE 3585-7", "CCE 4419-8", "CCE 3692-1",
"CCE 4459-4", "CCE 4476-8", "CCE 4181-4",
"CCE 4577-3", "CCE 4344-8", "CCE 4494-1",
"CCE 4511-2", "CCE 4529-4", "CCE 3610-3",
"CCE 4466-9", "CCE 4607-8", "CCE 4255-6",
"CCE 4127-7", "CCE 4519-5", "CCE 4413-1",
"CCE 4373-7"]
self.applicable = {"type": "white",
"family": ["linux"]}
self.iditerator = 0
def report(self):
''' '''
try:
self.detailedresults = ""
compliant = True
debug = ""
self.ph = Pkghelper(self.logger, self.environ)
self.installed = False
if self.ph.manager == "apt-get":
if self.ph.check("squid3"):
self.installed = True
self.squidfile = "/etc/squid3/squid.conf"
elif self.ph.check("squid"):
self.installed = True
self.squidfile = "/etc/squid/squid.conf"
if self.ph.check("squid"):
self.installed = True
self.squidfile = "/etc/squid/squid.conf"
if self.installed:
self.data1 = {"ftp_passive": "on",
"ftp_sanitycheck": "on",
"check_hostnames": "on",
"request_header_max_size": "20 KB",
"reply_header_max_size": "20 KB",
"cache_effective_user": "******",
"cache_effective_group": "squid",
"ignore_unknown_nameservers": "on",
"allow_underscore": "off",
"httpd_suppress_version_string": "on",
"forwarded_for": "off",
"log_mime_hdrs": "on"}
self.data2 = {"http_access": "deny to_localhost"}
#make sure these aren't in the file
self.denied = ["acl Safe_ports port 70",
"acl Safe_ports port 210",
"acl Safe_ports port 280",
"acl Safe_ports port 488",
"acl Safe_ports port 591",
"acl Safe_ports port 777"]
if os.path.exists(self.squidfile):
if not checkPerms(self.squidfile, [0, 0, 420], self.logger):
self.detailedresults += "Permissions are not correct " + \
"on " + self.squidfile + "\n"
contents = readFile(self.squidfile, self.logger)
if contents:
found = False
for line in contents:
if re.search("^http_access", line.strip()):
temp = line.strip()
temp = re.sub("\s+", " ", temp)
temp = re.sub("http_access\s+", "", temp)
if re.search("^deny to_localhost", temp):
found = True
break
if not found:
compliant = False
for key in self.data1:
found = False
for line in contents:
if re.match('^#', line) or re.match(r'^\s*$', line):
continue
elif re.search("^" + key + " ", line):
temp = line.strip()
temp = re.sub("\s+", " ", temp)
temp = temp.split(" ")
if len(temp) >= 3:
joinlist = [temp[1], temp[2]]
joinstring = " ".join(joinlist)
if self.data1[key] == joinstring:
found = True
else:
found = False
break
else:
if self.data1[key] == temp[1]:
found = True
else:
found = False
break
if not found:
debug += key + " either not found or has wrong value\n"
self.detailedresults += key + " either not found " + \
"or has wrong value\n"
compliant = False
if debug:
self.logger.log(LogPriority.DEBUG, debug)
debug = ""
for entry in self.denied:
for line in contents:
if re.search(entry + "\s+", line.strip()):
debug += "line: " + line + \
"should not exist in this file\n"
self.detailedresults += "line: " + line + \
"should not exist in this file\n"
compliant = False
if debug:
self.logger.log(LogPriority.DEBUG, debug)
else:
compliant = False
self.detailedresults += "Contents of squid " + \
"configuration file are blank\n"
else:
compliant = False
self.detailedresults += "squid configuration file " + \
"doesn't exist\n"
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
''' '''
try:
if not self.ci.getcurrvalue():
return
self.detailedresults = ""
success = True
created = False
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if self.installed:
if not os.path.exists(self.squidfile):
if not createFile(self.squidfile, self.logger):
success = False
else:
created = True
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation",
"filepath": self.squidfile}
self.statechglogger.recordchgevent(myid, event)
if not checkPerms(self.squidfile, [0, 0, 420], self.logger):
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.squidfile, [0, 0, 420], self.logger,
self.statechglogger, myid):
success = False
else:
if not setPerms(self.squidfile, [0, 0, 420], self.logger):
success = False
tempstring = ""
contents = readFile(self.squidfile, self.logger)
newcontents = []
if contents:
'''Remove any undesired acl lines'''
for line in contents:
if re.match('^#', line) or re.match(r'^\s*$', line):
newcontents.append(line)
elif re.search("^acl Safe_ports port ", line.strip()):
m = re.search("acl Safe_ports port ([0-9]+).*", line)
if m.group(1):
item = "acl Safe_ports port " + m.group(1)
if item in self.denied:
continue
else:
newcontents.append(line)
else:
newcontents.append(line)
'''removeables list holds key vals we find in the file
that we can remove from self.data'''
removeables = []
'''deleteables list holds key vals we can delete from
newcontents list if it's incorrect.'''
deleteables = {}
for key in self.data1:
found = False
for line in reversed(newcontents):
if re.match('^#', line) or re.match(r'^\s*$', line):
continue
elif re.search("^" + key + " ", line) or re.search("^" + key, line):
temp = line.strip()
temp = re.sub("\s+", " ", temp)
temp = temp.split(" ")
if len(temp) >= 3:
joinlist = [temp[1], temp[2]]
joinstring = " ".join(joinlist)
if self.data1[key] == joinstring:
'''We already found this line and value
No need for duplicates'''
if found:
newcontents.remove(line)
continue
removeables.append(key)
found = True
else:
try:
deleteables[line] = ""
except Exception:
continue
continue
elif len(temp) == 2:
if self.data1[key] == temp[1]:
'''We already found this line and value
No need for duplicates'''
if found:
newcontents.remove(line)
continue
removeables.append(key)
found = True
else:
try:
deleteables[line] = ""
except Exception:
continue
continue
elif len(temp) == 1:
try:
deleteables[line] = ""
except Exception:
continue
continue
if deleteables:
for item in deleteables:
newcontents.remove(item)
'''anything in removeables we found in the file so
we will remove from the self.data1 dictionary'''
if removeables:
for item in removeables:
del(self.data1[item])
'''now check if there is anything left over in self.data1
if there is we need to add that to newcontents list'''
if self.data1:
for item in self.data1:
line = item + " " + self.data1[item] + "\n"
newcontents.append(line)
for line in newcontents:
found = False
if re.search("^http_access", line.strip()):
temp = line.strip()
temp = re.sub("\s+", " ", temp)
temp = re.sub("http_access\s+", "", temp)
if re.search("^deny to_localhost", temp):
found = True
break
if not found:
newcontents.append("http_access deny to_localhost\n")
for item in newcontents:
tempstring += item
tmpfile = self.squidfile + ".tmp"
if not writeFile(tmpfile, tempstring, self.logger):
success = False
else:
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf",
"filepath": self.squidfile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.squidfile,
tmpfile, myid)
os.rename(tmpfile, self.squidfile)
os.chown(self.squidfile, 0, 0)
os.chmod(self.squidfile, 420)
resetsecon(self.squidfile)
else:
tempstring = ""
for item in self.data1:
tempstring += item + " " + self.data1[item] + "\n"
for item in self.data2:
tempstring += item + " " + self.data2[item] + "\n"
tmpfile = self.squidfile + ".tmp"
if not writeFile(tmpfile, tempstring, self.logger):
success = False
else:
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf",
"filepath": self.squidfile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.squidfile,
tmpfile, myid)
os.rename(tmpfile, self.squidfile)
os.chown(self.squidfile, 0, 0)
os.chmod(self.squidfile, 420)
resetsecon(self.squidfile)
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception as err:
self.rulesuccess = False
self.detailedresults = self.detailedresults + "\n" + str(err) + \
" - " + str(traceback.format_exc())
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class InstallVLock(Rule):
'''This class installs the vlock package to enable screen locking
vlock is the package name on opensuse 15+, debian, ubuntu
kbd is the package name on opensuse 42.3-, rhel, fedora, centos (contains vlock package)
references:
https://pkgs.org/download/vlock
https://access.redhat.com/discussions/3543671
'''
def __init__(self, config, environ, logger, statechglogger):
"""
Constructor
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 121
self.rulename = "InstallVLock"
self.mandatory = True
self.rootrequired = True
self.formatDetailedResults("initialize")
self.guidance = ["NSA 2.3.5.6"]
self.applicable = {'type': 'white', 'family': ['linux', 'freebsd']}
# Configuration item instantiation
datatype = 'bool'
key = 'INSTALLVLOCK'
instructions = "To disable installation of the command line " + \
"screen lock program vlock set the value of INSTALLVLOCK to False."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
self.sethelptext()
def set_pkg(self):
'''set package name based on distro'''
majorver = self.environ.getosmajorver()
if self.ph.manager in ["yum", "dnf"]:
self.pkg = "kbd"
elif bool(self.ph.manager == "zypper" and majorver == "15"):
self.pkg = "kbd"
else:
self.pkg = "vlock"
def report(self):
'''Perform a check to see if package is already installed.
If so, there is no need to run Fix method
:returns: self.compliant
:rtype: bool
@author: Derek T Walker
'''
try:
self.detailedresults = ""
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
self.compliant = True
self.set_pkg()
if not self.ph.check(self.pkg):
self.compliant = False
self.detailedresults += "\nvlock Package is NOT installed"
else:
self.detailedresults += "\nvlock Package is installed"
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
'''The fix method will apply the required settings to the system.
self.rulesuccess will be updated if the rule does not succeed.
Attempt to install Vlock, record success or failure in event
logger.
:returns: self.rulesuccess
:rtype: bool
@author: Derek T Walker
'''
try:
self.detailedresults = ""
self.rulesuccess = True
self.iditerator = 0
if not self.ci.getcurrvalue():
return self.rulesuccess
# Clear out event history so only the latest fix is recorded
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
undocmd = self.ph.getRemove()
if not self.ph.install(self.pkg):
self.rulesuccess = False
self.detailedresults += "\nFailed to install vlock package"
else:
undocmd += self.pkg
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "comm", "command": undocmd}
self.statechglogger.recordchgevent(myid, event)
self.detailedresults += "\nvlock Package was installed successfully"
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class SystemAccounting(Rule):
"""
"""
def __init__(self, config, environ, logger, statechglogger):
"""
Constructor
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 9
self.rulename = 'SystemAccounting'
self.formatDetailedResults("initialize")
self.mandatory = False
self.rootrequired = True
self.sethelptext()
self.guidance = ['CIS 2.4', 'cce-3992-5']
self.applicable = {
'type': 'white',
'family': 'linux',
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
}
}
# set up configuration item for this rule
datatype = 'bool'
key = 'SYSTEMACCOUNTING'
instructions = "This is an optional rule and is disabled by default, due to the significant load it can place on the system when enabled. To enable system accounting, set the value of SYSTEMACCOUNTING to True."
default = False
self.ci = self.initCi(datatype, key, instructions, default)
self.ostype = self.environ.getostype()
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
self._set_paths()
def _set_paths(self):
"""
"""
self.sysstat_package = "sysstat"
self.sysstat_service_file = ""
sysstat_service_locs = [
"/usr/lib/systemd/system/sysstat.service",
"/lib/systemd/system/sysstat.service", "/etc/init.d/sysstat"
]
for ss in sysstat_service_locs:
if os.path.isfile(ss):
self.sysstat_service_file = ss
break
self.accton = "/usr/sbin/accton"
self.acct_file = "/var/account/acct"
self.cron_file = "/etc/cron.d/sysstat"
self.sa1 = ""
sa1_locs = [
"/usr/lib64/sa/sa1", "/usr/local/lib64/sa/sa1",
"/usr/lib/sysstat/sa1"
]
for sl in sa1_locs:
if os.path.isfile(sl):
self.sa1 = sl
break
self.sa2 = ""
sa2_locs = [
"/usr/lib64/sa/sa2", "/usr/local/lib64/sa/sa2",
"/usr/lib/sysstat/sa2"
]
for sl in sa2_locs:
if os.path.isfile(sl):
self.sa2 = sl
break
self.sysstat_service_contents = """# /usr/lib/systemd/system/sysstat.service
# (C) 2012 Peter Schiffer (pschiffe <at> redhat.com)
#
# sysstat-10.1.7 systemd unit file:
# Insert a dummy record in current daily data file.
# This indicates that the counters have restarted from 0.
[Unit]
Description=Resets System Activity Logs
[Service]
Type=oneshot
RemainAfterExit=yes
User=root
ExecStart=""" + self.sa1 + """ --boot
[Install]
WantedBy=multi-user.target
"""
self.sysstat_cron_contents = """# Run system activity accounting tool every 60 minutes
*/60 * * * * root """ + self.sa1 + """ 1 1
# Generate a daily summary of process accounting at 23:53
53 23 * * * root """ + self.sa2 + """ -A"""
def _report_configuration(self):
"""
:return: compliant
:rtype: bool
"""
compliant = True
if self.ostype == "Mac OS X":
self.conf_file = ""
conf_files = ["/etc/rc.conf", "/etc/rc.common"]
for cf in conf_files:
if os.path.isfile(cf):
self.conf_file = cf
break
tmpfile = self.conf_file + ".stonixtmp"
config_data = {"accounting_enable": "YES"}
self.conf_editor = KVEditorStonix(self.statechglogger, self.logger,
"conf", self.conf_file, tmpfile,
config_data, "present",
"closedeq")
if not self.conf_editor.report():
compliant = False
else:
if not os.path.isfile(self.sysstat_service_file):
compliant = False
self.detailedresults += "\nSystem accounting service file is missing"
else:
f = open(self.sysstat_service_file, "r")
contents = f.read()
f.close()
if self.sysstat_service_file != "/etc/init.d/sysstat":
if contents != self.sysstat_service_contents:
compliant = False
self.detailedresults += "\nSystem accounting service file has incorrect contents"
if os.path.isfile("/etc/default/sysstat"):
f = open("/etc/default/sysstat", "r")
contents = f.read()
f.close()
if not re.search('ENABLED="true"', contents):
compliant = False
self.detailedresults += "\n/etc/default/sysstat file has incorrect contents"
return compliant
def _report_installation(self):
"""
:return: compliant
:rtype: bool
"""
compliant = True
if self.ostype != "Mac OS X":
if not self.ph.check(self.sysstat_package):
compliant = False
self.detailedresults += "\nSystem accounting package is not installed"
return compliant
def _report_schedule(self):
"""
:return: compliant
:rtype: bool
"""
compliant = True
if self.ostype == "Mac OS X":
if not os.path.isfile(self.acct_file):
compliant = False
self.detailedresults += "\nSystem accounting is not enabled on this system"
else:
if not os.path.isfile(self.cron_file):
compliant = False
else:
f = open(self.cron_file, "r")
contents = f.read()
f.close()
if contents != self.sysstat_cron_contents:
self.compliant = False
self.detailedresults += "\nSystem account cron job has incorrect contents"
return compliant
def report(self):
"""
:return: compliant
:rtype: bool
"""
self.detailedresults = ""
self.compliant = True
try:
if not self._report_installation():
self.compliant = False
else:
if not self._report_configuration():
self.compliant = False
if not self._report_schedule():
self.compliant = False
except (KeyboardInterrupt, SystemExit):
raise
except:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def _fix_installation(self):
"""
:return: success
:rtype: bool
"""
success = True
if self.ostype != "Mac OS X":
if not self.ph.install(self.sysstat_package):
success = False
self.logger.log(LogPriority.DEBUG,
"Failed to install sysstat package")
return success
def _fix_configuration(self):
"""
:return: success
:rtype: bool
"""
success = True
if self.ostype == "Mac OS X":
if not self.conf_editor.fix():
success = False
self.logger.log(LogPriority.DEBUG, "kveditor failed to fix()")
elif not self.conf_editor.commit():
success = False
self.logger.log(LogPriority.DEBUG,
"kveditor failed to commit()")
else:
try:
if self.sysstat_service_file != "/etc/init.d/sysstat":
f = open(self.sysstat_service_file, "w")
f.write(self.sysstat_service_contents)
f.close()
except:
success = False
if os.path.isfile("/etc/default/sysstat"):
default_sysstat_contents = """#
# Default settings for /etc/init.d/sysstat, /etc/cron.d/sysstat
# and /etc/cron.daily/sysstat files
#
# Should sadc collect system activity information? Valid values
# are 'true' and 'false'. Please do not put other values, they
# will be overwritten by debconf!
ENABLED="true"
"""
f = open("/etc/default/sysstat", "w")
f.write(default_sysstat_contents)
f.close()
return success
def _fix_schedule(self):
"""
:return: success
:rtype: bool
"""
success = True
try:
if self.ostype == "Mac OS X":
if not os.path.isdir("/var/account"):
os.mkdir("/var/account", 0o755)
open(self.acct_file, "a").close()
self.ch.executeCommand(self.accton + " " + self.acct_file)
else:
f = open(self.cron_file, "w")
f.write(self.sysstat_cron_contents)
f.close()
os.chown(self.cron_file, 0, 0)
os.chmod(self.cron_file, 0o644)
except:
success = False
return success
def fix(self):
"""
:return: self.rulesuccess
:rtype: bool
"""
self.detailedresults = ""
self.rulesuccess = True
try:
if not self._fix_installation():
self.rulesuccess = False
else:
self._set_paths()
if not self._fix_configuration():
self.rulesuccess = False
if not self._fix_schedule():
self.rulesuccess = False
except (KeyboardInterrupt, SystemExit):
raise
except:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class ConfigureScreenLocking(RuleKVEditor):
def __init__(self, config, environ, logdispatcher, statechglogger):
RuleKVEditor.__init__(self, config, environ, logdispatcher,
statechglogger)
self.logger = logdispatcher
self.rulenumber = 74
self.rulename = "ConfigureScreenLocking"
self.mandatory = True
self.rootrequired = False
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
}
}
self.effectiveUserID = self.environ.geteuid()
self.sethelptext()
self.formatDetailedResults("initialize")
self.guidance = ["NSA 2.3.5.6.1"]
if self.environ.getosfamily() == "darwin":
if self.effectiveUserID == 0:
self.addKVEditor(
"SystemAskForPasswordSystem", "defaults",
"/Library/Preferences/com.apple.screensaver", "",
{"askForPassword": ["1", "-int 1"]}, "present", "",
"Ask for password when system wide " +
"screen saver is on.", None, False,
{"askForPassword": ["0", "-int 0"]})
self.addKVEditor(
"SystemSetScreenSaverIdleTime", "defaults",
"/Library/Preferences/com.apple.screensaver", "",
{"idleTime": ["840", "-int 840"]}, "present", "",
"Sets system the screen saver to " +
"activate after 14 minutes of idleTime.", None, False, {
"idleTime": [
"The domain/default pair of ( .+" +
"com\.apple\.screensaver, " +
"idleTime) does not " + "exist", None
]
})
self.addKVEditor(
"SystemLoginWindowIdleTime", "defaults",
"/Library/Preferences/com.apple.screensaver", "",
{"loginWindowIdleTime": ["840", "-int 840"]}, "present",
"", "Sets system LoginWindowIdleTime to " + "14 minutes.",
None, False, {
"loginWindowIdleTime": [
"The domain/default pair of ( .+" +
"com\.apple\.screensaver, " +
"loginWindowIdleTime) does not " + "exist", None
]
})
else:
self.addKVEditor(
"AskForPassword", "defaults",
"~/Library/Preferences/com.apple.screensaver", "",
{"askForPassword": ["1", "-int 1"]}, "present", "",
"Ask for password when screen saver is on.", None, False,
{"askForPassword": ["0", "-int 0"]})
self.addKVEditor(
"AskForPasswordDelay", "defaults",
"~/Library/Preferences/com.apple.screensaver", "",
{"askForPasswordDelay": ["0", "-int 0"]}, "present", "",
"Delay asking for password by 0 seconds.", None, False, {
"askForPasswordDelay": [
"The domain/default pair of ( .+" +
"com\.apple\.screensaver, " +
"askForPassword) does not " + "exist", None
]
})
else:
datatype = 'bool'
key = 'CONFIGURESCREENLOCKING'
instructions = "To prevent the configuration of idle screen locking, set the value of CONFIGURESCREENLOCKING to False."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
#self.gnomeInst variable determines in the fixGnome method
#at the beginning if we even proceed. If False we don't proceed
#and is fine. Gets set to True in reportGnome method if
#either gconftool-2 or gsettings binaries exist.
self.gnomeInst = False
self.useGconf = True
self.iditerator = 0
self.cmdhelper = CommandHelper(self.logger)
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
self.euid = self.environ.geteuid()
def report(self):
"""ConfigureScreenLocking.report() method to report whether system
is configured to screen locking NSA standards. If the system is linux,
although many desktops are available, this rule will only check the
two most popular desktops, KDE, and Gnome.
@author: dwalker
:param self: essential if you override this definition
:return: self.compliant
:rtype: bool
"""
self.detailedresults = ""
self.compliant = True
try:
compliant = True
self.detailedresults = ""
if self.environ.osfamily == 'linux':
if not self.check_package():
compliant = False
if self.euid != 0:
self.detailedresults += "\nThis is expected if not running with elevated privileges since STONIX " \
"requires elevated privileges to install packages. Please run STONIX with elevated privileges " \
"and run the fix for this rule again, to fix this issue."
if self.ph.check("gdm") or self.ph.check("gdm3"):
self.gnomeInstalled = True
if not self.reportGnome():
self.detailedresults += "\nGnome GUI environment " + \
"does not appear to be correctly configured " + \
"for screen locking parameters."
compliant = False
else:
self.detailedresults += "\nGnome GUI environment " + \
"appears to be correctly configured for " + \
"screen locking parameters."
else:
self.gnomeInstalled = False
self.detailedresults += "\nGnome not installed. No need to configure for gnome."
if self.ph.check("kdm") or self.ph.check("kde-workspace") or \
self.ph.check("sddm") or self.ph.check("patterns-kde-kde_yast"):
self.kdeInstalled = True
if not self.reportKde():
self.detailedresults += "\nKDE GUI environment " + \
"does not appear to be correctly configured " + \
"for screen locking parameters."
compliant = False
else:
self.detailedresults += "\nKDE GUI environment " + \
"appears to be correctly configured for " + \
"screen locking parameters."
else:
self.kdeInstalled = False
self.detailedresults += "\nKDE not installed. No need to configure for kde."
elif self.environ.getosfamily() == "darwin":
compliant = self.reportMac()
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def check_package(self):
"""
for rhel 7 and similar generation linux rpm-based systems, the
'screen' package is required by the STIG
for rhel 8 and beyond (and similar), the 'tmux' package
is required.
:return: installed
:rtype: bool
"""
self.screen_pkg = ""
installed = True
if self.ph.checkAvailable("tmux"):
self.screen_pkg = "tmux"
elif self.ph.check("tmux"):
self.screen_pkg = "tmux"
else:
self.screen_pkg = "screen"
if not self.ph.check(self.screen_pkg):
self.detailedresults += "\nThe required package: " + str(
self.screen_pkg) + " is not installed"
installed = False
else:
self.detailedresults += "\nThe required package: " + str(
self.screen_pkg) + " is installed"
return installed
def reportMac(self):
"""Mac osx specific report submethod
@author: dwalker
:param self: essential if you override this definition
:returns: bool - True if system is compliant, False if it isn't
"""
success = RuleKVEditor.report(self, True)
return success
def reportGnome(self):
"""determines if gnome is installed, if so, checks to see if the
return value strings from running the gconftool-2 command are
correct. Gconftool-2 command only works in root mode so if not root
do not audit gnome and just return true
@author: dwalker
:param self: essential if you override this definition
:returns: bool
@change: dwalker - mass refactor, added comments
"""
compliant = True
gsettings = "/usr/bin/gsettings"
gconf = "/usr/bin/gconftool-2"
self.gesttingsidletime = ""
self.gconfidletime = ""
self.setcmds = ""
#may need to change code in the future to make gconf and
#gsettings mutually exclusive with if elif else self.gnomeInstalled = False
#if they are found to conflict with each other
if os.path.exists(gconf):
getcmds = {
"/apps/gnome-screensaver/idle_activation_enabled": "true",
"/apps/gnome-screensaver/lock_enabled": "true",
"/apps/gnome-screensaver/mode": "blank-only",
"/desktop/gnome/session/idle_delay": "15"
}
#make a copy of the getcmds dictionary
tempdict = dict(getcmds)
#check each value using the gconftool-2 command
for cmd in getcmds:
#set the get command for each value
cmd2 = gconf + " --get " + cmd
#execute the command
self.cmdhelper.executeCommand(cmd2)
#get output and error output
output = self.cmdhelper.getOutput()
error = self.cmdhelper.getError()
#the value is set
if output:
#check this one separately since the value is
#also able to be less than 15 mins and be compliant
if cmd == "/desktop/gnome/session/idle_delay":
if int(output[0].strip()) > 15:
self.detailedresults += "Idle delay value " + \
"is not 15 or lower (value: " + \
output[0].strip() + ")\n"
#if they have a value less than 15 mins this is ok
#and we set the self.gconfidletime variable which is
#used during setting gconf values in the fixGnome method
elif int(output[0].strip()) < 15:
self.gconfidletime = output[0].strip()
del tempdict[cmd]
#value is correct so remove it from the tempdic
else:
del tempdict[cmd]
#check if value is correct with associated key
elif output[0].strip() != getcmds[cmd]:
self.detailedresults += cmd2 + " didn't produce the " + \
"desired value after being run which is " + \
getcmds[cmd] + "\n"
#value is correct so remove it from the tempdict
else:
del tempdict[cmd]
#else the value isn't set
elif error:
self.detailedresults += "There is no value set for:\n" + \
cmd2 + "\n"
#if tempdict still has leftover values then
#there were values that weren't correctly set
#and is non compliant
if tempdict:
compliant = False
#set self.setcmds variable to be a copy of tempdict which
#we use later in the fix to determine if we fix this portion
#of the rule or not
self.setcmds = tempdict
if os.path.exists(gsettings):
self.gnomeInst = True
#use gsettings command to see if the correct values are set
#for each key in getcmds dictionary
getcmds = {
" get org.gnome.desktop.screensaver " + "idle-activation-enabled":
"true",
" get org.gnome.desktop.screensaver lock-enabled": "true",
" get org.gnome.desktop.screensaver lock-delay": "0",
" get org.gnome.desktop.screensaver picture-opacity": "100",
" get org.gnome.desktop.screensaver picture-uri": "''",
" get org.gnome.desktop.session idle-delay": "900"
}
#run each gsettings get command for each key and get value
for cmd in getcmds:
cmd2 = gsettings + cmd
self.cmdhelper.executeCommand(cmd2)
output = self.cmdhelper.getOutput()
error = self.cmdhelper.getError()
if output:
#check this one separately since the value is
#also able to be less than 900 secs and be compliant
if cmd == " get org.gnome.desktop.session idle-delay":
try:
splitOut = output[0].split()
if len(splitOut) > 1:
num = splitOut[1]
else:
num = splitOut[0]
if int(num) > 900:
compliant = False
self.detailedresults += "Idle delay value " + \
"is not 900 seconds (value: " +\
num + ")\n"
#if they have a value less than 900 secs this is ok
#and we set the self.gsettingsidletime variable which is
#used during setting gsettings values in the fixGnome method
# elif int(num) < 900:
# self.gsettingsidletime = num
elif int(num) == 0:
compliant = False
self.detailedresults += "Idle delay set " + \
"to 0, meaning it is disabled.\n"
else:
self.gsettingsidletime = "900"
except ValueError:
self.detailedresults += "Unexpected result: " + \
'"' + cmd2 + '" output was not a number\n'
compliant = False
elif cmd == " get org.gnome.desktop.screensaver lock-delay":
try:
splitOut = output[0].split()
if len(splitOut) > 1:
num = splitOut[1]
else:
num = splitOut[0]
if int(num) != 0:
compliant = False
self.detailedresults += "Lock delay is not " + \
"set to 0\n"
except ValueError:
self.detailedresults += "Unexpected result: " + \
'"' + cmd2 + '" output was not a number\n'
compliant = False
elif output[0].strip() != getcmds[cmd]:
self.detailedresults += '"' + cmd2 + \
"\" produced value: " + output[0].strip() + \
" instead of the desired value: " + getcmds[cmd] + "\n"
compliant = False
elif error:
if re.search("No such key", error[0], re.I):
continue
self.detailedresults += "There is no value set for:" + \
cmd2 + "\n"
compliant = False
if self.environ.geteuid() == 0:
# instantiate a kveditor to ensure self.dconfsettings file
# contains correct contents
self.dconfsettings = "/etc/dconf/db/local.d/local.key"
if os.path.exists(self.dconfsettings):
self.dconfdata = {
"org/gnome/desktop/screensaver": {
"idle-activation-enabled": "true",
"lock-enabled": "true",
"lock-delay": "0",
"picture-opacity": "100",
"picture-uri": "\'\'"
},
"org/gnome/desktop/session": {
"idle-delay": "uint32 900"
}
}
self.kveditordconf = KVEditorStonix(
self.statechglogger, self.logger, "tagconf",
self.dconfsettings, self.dconfsettings + ".tmp",
self.dconfdata, "present", "closedeq")
if not self.kveditordconf.report():
self.detailedresults += self.dconfsettings + \
" doesn't cotain correct contents\n"
compliant = False
else:
compliant = False
self.detailedresults += self.dconfsettings + " not found\n"
# check self.dconfuserprofile file to ensure existence
# and/or correct contents
self.dconfuserprofile = "/etc/dconf/profile/user"
self.userprofilecontent = "user-db:user\n" + \
"system-db:local"
if os.path.exists(self.dconfuserprofile):
contents = readFile(self.dconfuserprofile, self.logger)
contentstring = ""
for line in contents:
contentstring += line
if not re.search(self.userprofilecontent, contentstring):
compliant = False
self.detailedresults += "Correct contents weren't " + \
"found in " + self.dconfuserprofile + "\n"
else:
compliant = False
self.detailedresults += self.dconfuserprofile + " not " + \
"found\n"
# the following file locks the settings we earlier set with the
# gsettings command so that they don't default upon logout and/or
# reboot. Check the file for the correct contents
self.dconfsettingslock = "/etc/dconf/db/local.d/locks/stonix-settings.conf"
self.dconflockdata = [
"/org/gnome/desktop/session/idle-delay",
"/org/gnome/desktop/screensaver/idle-activation-enabled",
"/org/gnome/desktop/screensaver/lock-enabled",
"/org/gnome/desktop/screensaver/lock-delay",
"/org/gnome/desktop/screensaver/picture-uri"
]
locks_missing = []
if os.path.exists(self.dconfsettingslock):
contents = readFile(self.dconfsettingslock, self.logger)
for line in contents:
if line.strip() not in self.dconflockdata:
locks_missing.append(line.strip())
if locks_missing:
self.detailedresults += "\nThe following settings should be locked from changes by the user but aren't:\n" + "\n".join(
locks_missing)
compliant = False
else:
compliant = False
self.detailedresults += "\nGnome settings lock file not found"
return compliant
def reportKde(self):
"""determines if kde is installed, if so, ensures kde is configured
by enabling screenlocking, automatically going black after 14 minutes
and if inactivity ensues after 14 minutes, screen fully locks after 1
additional minute of inactivity for a total of 15 minutes activity
@author: dwalker
:param self: essential if you override this definition
:returns: bool
"""
self.kdefix = {}
if self.ph.manager == "apt-get" or self.ph.manager == "zypper":
self.rcpath = ".config/kscreenlockerrc"
self.kdeprops = {
"Daemon": {
"Autolock": "true",
"LockGrace": "60",
"LockOnResume": "true",
"Timeout": "14"
}
}
else:
self.rcpath = ".kde/share/config/kscreensaverrc"
self.kdeprops = {
"ScreenSaver": {
"Enabled": "true",
"Lock": "true",
"LockGrace": "60000",
"Timeout": "840"
}
}
if self.environ.geteuid() == 0:
contents = readFile("/etc/passwd", self.logger)
for line in contents:
temp = line.split(":")
try:
username = temp[0]
homepath = temp[5]
except IndexError:
self.logdispatch.log(LogPriority.DEBUG, [
'ConfigureScreenLocking',
'IndexError processing ' + str(temp)
])
continue
kdeparent1 = os.path.join(homepath, ".kde")
kdeparent2 = os.path.join(homepath, ".kde4")
kdefile = os.path.join(homepath, self.rcpath)
if not os.path.exists(kdeparent1) and not os.path.exists(
kdeparent2):
# User does not user KDE
continue
elif not os.path.exists(kdefile):
self.kdefix[username] = homepath
self.detailedresults += kdefile + " not found for " + \
str(username) + "\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
continue
elif not self.searchFile(kdefile):
self.detailedresults += "Did not find " + \
"required contents " + "in " + username + \
"'s " + kdefile + "\n"
self.kdefix[username] = homepath
if self.kdefix:
self.detailedresults += "The following users don't " + \
"have kde properly configured for " + \
"screen locking:\n"
for user in self.kdefix:
self.detailedresults += user + "\n"
return False
else:
return True
else:
kdeparent1 = os.path.join(self.environ.geteuidhome(), ".kde")
kdeparent2 = os.path.join(self.environ.geteuidhome(), ".kde4")
kdefile = os.path.join(self.environ.geteuidhome(), self.rcpath)
if not os.path.exists(kdeparent1) and not os.path.exists(
kdeparent2):
self.detailedresults += "Current user doesn't use kde. " + \
"No need to configure.\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
return True
else:
if not os.path.exists(kdefile):
self.detailedresults += "Your " + kdefile + \
" file doesn't exist.\n"
return False
elif not self.searchFile(kdefile):
self.detailedresults += "Did not find " + \
"required contents in " + kdefile + "\n"
return False
else:
return True
def fix(self):
"""ConfigureScreenLocking.fix() method to correct screen locking
@author: dwalker
:param self: essential if you override this definition
:returns: bool - True if fix is successful, False if it isn't
"""
self.detailedresults = ""
self.rulesuccess = True
self.iditerator = 0
try:
self.detailedresults = ""
success = True
if self.environ.getosfamily() == "linux":
if not self.ci.getcurrvalue():
self.detailedresults += "Rule not enabled so nothing was done\n"
self.logger.log(
LogPriority.DEBUG,
'Rule was not enabled, so nothing was done')
return
if self.euid == 0:
if not self.ph.install(self.screen_pkg):
success = False
self.logger.log(
LogPriority.DEBUG,
"Failed to install required package 'screen'")
else:
self.detailedresults += "\nNote: Some required packages may not be installed because STONIX is not running with elevated privileges."
if self.gnomeInstalled:
if not self.fixGnome():
success = False
if self.kdeInstalled:
if not self.fixKde():
success = False
elif self.environ.getosfamily() == "darwin":
if self.environ.geteuid() == 0:
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(
self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
success = self.fixMac()
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixKde(self):
"""This method checks if the kde screenlock file is configured
properly. Please note, this rule may fail if the owner and group of
configuration file are not that of the user in question but doesn't
necessarily mean your system is out of compliance. If the fix fails
Please check the logs to determing the real reason of non rule success.
@author: dwalker
:param self: essential if you override this definition
:returns: bool - True if KDE is successfully configured, False if it
isn't
"""
success = True
if self.environ.geteuid() == 0:
self.logdispatch.log(LogPriority.DEBUG,
'ConfigureScreenLocking.fixKde')
if not self.kdefix:
return True
for user in self.kdefix:
homepath = self.kdefix[user]
kdefile = os.path.join(homepath, self.rcpath)
if not self.correctFile(kdefile, user):
success = False
self.detailedresults += "Unable to configure " + \
kdefile + "\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
else:
username = ""
homepath = self.environ.geteuidhome()
kdefile = os.path.join(homepath, self.rcpath)
uidnum = int(self.environ.geteuid())
passwddata = readFile("/etc/passwd", self.logger)
found = False
for user in passwddata:
user = user.split(':')
try:
puidnum = int(user[2])
if puidnum == uidnum:
username = user[0]
found = True
except IndexError:
continue
if not found:
self.detailedresults += "Could not obtain your user id.\n" + \
"Stonix couldn't proceed with correcting " + kdefile + "\n"
success = False
elif not self.correctFile(kdefile, username):
self.detailedresults += "Stonix couldn't correct the contents " + \
" of " + kdefile + "\n"
success = False
return success
def fixGnome(self):
"""ensures gnome is configured to automatically screen lock after
15 minutes of inactivity, if gnome is installed
@author: dwalker
:param self: essential if you override this definition
:returns: bool - True if gnome is successfully configured, False if it
isn't
"""
info = ""
success = True
gconf = "/usr/bin/gconftool-2"
gsettings = "/usr/bin/gsettings"
if os.path.exists(gconf):
#variable self.setcmds still has items left in its dictionary
#which was set in the reportGnome method, meaning some values
#either were incorrect or didn't have values. Go through and
#set each remaining value that isn't correct
cmd = ""
if self.setcmds:
for item in self.setcmds:
if item == "/apps/gnome-screensaver/idle_activation_enabled":
cmd = gconf + " --type bool --set /apps/gnome-screensaver/idle_activation_enabled true"
elif item == "/apps/gnome-screensaver/lock_enabled":
cmd = gconf + " --type bool --set /apps/gnome-screensaver/lock_enabled true"
elif item == "/apps/gnome-screensaver/mode":
cmd = gconf + ' --type string --set /apps/gnome-screensaver/mode "blank-only"'
elif item == "/desktop/gnome/session/idle_delay":
if self.gconfidletime:
cmd = gconf + " --type int --set /desktop/gnome/session/idle_delay " + \
self.gconfidletime
else:
cmd = gconf + " --type int --set /desktop/gnome/session/idle_delay 15"
if self.cmdhelper.executeCommand(cmd):
if self.cmdhelper.getReturnCode() != 0:
info += "Unable to set value for " + cmd + "\n"
success = False
else:
info += "Unable to set value for " + cmd + "\n"
success = False
if os.path.exists(gsettings):
setcmds = [
"org.gnome.desktop.screensaver idle-activation-enabled true",
"org.gnome.desktop.screensaver lock-enabled true",
"org.gnome.desktop.screensaver lock-delay 0",
"org.gnome.desktop.screensaver picture-opacity 100",
"org.gnome.desktop.screensaver picture-uri ''",
"org.gnome.desktop.session idle-delay 900"
]
# " set org.gnome.desktop.session idle-delay " + self.gsettingsidletime]
for cmd in setcmds:
cmd2 = gsettings + " set " + cmd
self.cmdhelper.executeCommand(cmd2)
if self.cmdhelper.getReturnCode() != 0:
success = False
info += "Unable to set value for " + cmd + \
" using gsettings\n"
# Set gsettings with dconf
# Unlock dconf settings
# Create dconf settings lock file
if self.environ.geteuid() == 0:
if not os.path.exists(self.dconfsettingslock):
if not createFile(self.dconfsettingslock, self.logger):
self.rulesuccess = False
self.detailedresults += "Unable to create stonix-settings file\n"
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
return False
#write correct contents to dconf lock file
if os.path.exists(self.dconfsettingslock):
# Write to the lock file
if self.dconflockdata:
contents = ""
tmpfile = self.dconfsettingslock + ".tmp"
for line in self.dconflockdata:
contents += line + "\n"
if not writeFile(tmpfile, contents, self.logger):
self.rulesuccess = False
self.detailedresults += "Unable to write contents to " + \
"stonix-settings file\n"
else:
os.rename(tmpfile, self.dconfsettingslock)
os.chown(self.dconfsettingslock, 0, 0)
os.chmod(self.dconfsettingslock, 0o644)
resetsecon(self.dconfsettingslock)
# Create dconf user profile file
if not os.path.exists(self.dconfuserprofile):
if not createFile(self.dconfuserprofile, self.logger):
self.rulesuccess = False
self.detailedresults += "Unable to create dconf " + \
"user profile file\n"
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
return False
# Write dconf user profile
if os.path.exists(self.dconfuserprofile):
tmpfile = self.dconfuserprofile + ".tmp"
if not writeFile(tmpfile, self.userprofilecontent,
self.logger):
self.rulesuccess = False
self.detailedresults += "Unabled to write to dconf user" + \
" profile file\n"
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
return False
else:
os.rename(tmpfile, self.dconfuserprofile)
os.chown(self.dconfuserprofile, 0, 0)
os.chmod(self.dconfuserprofile, 0o644)
resetsecon(self.dconfuserprofile)
# Fix dconf settings
if not os.path.exists(self.dconfsettings):
if not createFile(self.dconfsettings, self.logger):
self.rulesuccess = False
self.detailedresults += "Unable to create " + self.dconfsettings + " file \n"
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
return False
self.dconfdata = {
"org/gnome/desktop/screensaver": {
"idle-activation-enabled": "true",
"lock-enabled": "true",
"lock-delay": "0",
"picture-opacity": "100",
"picture-uri": "\'\'"
},
"org/gnome/desktop/session": {
"idle-delay": "uint32 900"
}
}
self.kveditordconf = KVEditorStonix(
self.statechglogger, self.logger, "tagconf",
self.dconfsettings, self.dconfsettings + ".tmp",
self.dconfdata, "present", "closedeq")
self.kveditordconf.report()
if self.kveditordconf.fixables:
if not self.kveditordconf.fix():
success = False
self.detailedresults += "Unable to put correct settings inside " + \
self.dconfsettings + "\n"
elif not self.kveditordconf.commit():
success = False
self.detailedresults += "Unable to put correct settings inside " + \
self.dconfsettings + "\n"
#run dconf update command to make dconf changes take effect
if os.path.exists("/bin/dconf"):
cmd = "/bin/dconf update"
self.cmdhelper.executeCommand(cmd)
elif os.path.exists("/usr/bin/dconf"):
cmd = "/usr/bin/dconf update"
self.cmdhelper.executeCommand(cmd)
self.detailedresults += info
return success
def fixMac(self):
"""Mac osx specific fix submethod
@author: dwalker
:param self: essential if you override this definition
:returns: bool - True if system is successfully fix, False if it isn't
"""
success = RuleKVEditor.fix(self, True)
return success
def searchFile(self, filehandle):
"""temporary method to separate the code to find directives from the
rest of the code. Will put back all in one method eventually
@author: dwalker
:param filehandle: string
:returns: bool
"""
self.editor = ""
kvt = "tagconf"
intent = "present"
tpath = filehandle + ".tmp"
conftype = "closedeq"
self.editor = KVEditorStonix(self.statechglogger, self.logger, kvt,
filehandle, tpath, self.kdeprops, intent,
conftype)
if not self.editor.report():
return False
else:
return True
def correctFile(self, kfile, user):
"""separate method to find the correct contents of each file passed in
as a parameter.
@author: dwalker
:param kfile:
:param user:
:returns: bool
"""
success = True
if not os.path.exists(kfile):
if not createFile(kfile, self.logger):
self.detailedresults += "Unable to create " + kfile + \
" file for the user\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
return False
if not self.searchFile(kfile):
if self.editor.fixables:
if not self.editor.fix():
debug = "Kveditor fix is failing for file " + \
kfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += "Unable to correct contents for " + \
kfile + "\n"
return False
elif not self.editor.commit():
debug = "Kveditor commit is failing for file " + \
kfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += "Unable to correct contents for " + \
kfile + "\n"
return False
uid = getpwnam(user)[2]
gid = getpwnam(user)[3]
if uid != "" and gid != "":
os.chmod(kfile, 0o600)
os.chown(kfile, uid, gid)
resetsecon(kfile)
else:
success = False
self.detailedresults += "Unable to obtain uid and gid of " + user + "\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
return success
def undo(self):
self.detailedresults += "This rule cannot be reverted\n"
self.rulesuccess = False
self.formatDetailedResults("undo", self.rulesuccess,
self.detailedresults)
class InstallBanners(RuleKVEditor):
'''Install and configure warning banners, to be displayed at startup.'''
def __init__(self, config, environ, logger, statechglogger):
"""
Constructor
"""
RuleKVEditor.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 51
self.rulename = 'InstallBanners'
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.rootrequired = True
self.compliant = False
self.guidance = [
'CIS', 'NSA 2.3.7.2', 'CCE 4188-9', 'CCE 4431-3', 'CCE 3717-6',
'CCE 4554-2', 'CCE 4603-7', 'CCE 4760-5', 'CCE 4301-8',
'CCE 4698-7', 'CCE 4222-6', 'CCE 4103-8', 'CCE 4870-2',
'CCE 4896-7'
]
self.iditerator = 0
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
}
}
# init CIs
datatype = 'bool'
key = 'INSTALLBANNERS'
instructions = "To prevent the installation of warning banners, " + \
"set the value of InstallBanners to False.\n\n!DEBIAN USERS! Due to " + \
"a bug in gdm3 (gnome 3) which has not been patched on debian, we are forced to " + \
"change the user's display manager to something else in order to be compliant " + \
"with the login banner requirement. As a result, the login banner changes will " + \
"only take effect after a system reboot."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
# Initial setup and deterministic resolution of variables
constlist = [
WARNINGBANNER, GDMWARNINGBANNER, GDM3WARNINGBANNER,
ALTWARNINGBANNER, OSXSHORTWARNINGBANNER
]
if not self.checkConsts(constlist):
self.applicable = {'type': 'white', 'family': []}
return
self.initobjs()
self.setcommon()
self.islinux()
self.ismac()
def initobjs(self):
''' '''
try:
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
self.linux = False
self.mac = False
self.gnome2 = False
self.gnome3 = False
self.kde = False
self.lightdm = False
self.badline = False
except Exception:
raise
def setgnome2(self):
'''set up all variables for use with gnome2-based systems
@author: Breen Malmberg
'''
self.gnome2 = True
self.gnome2bannertext = GDMWARNINGBANNER
def forcelightdm(self):
'''force debian systems using gdm3 to
change to the lightdm display manager
in order to comply with login/display
banner requirements
:returns: retval
:rtype: bool
@author: Breen Malmberg
'''
retval = True
self.logger.log(LogPriority.DEBUG,
"Forcing display manager to be lightdm...")
if self.gnome2:
cmd = '/usr/sbin/dpkg-reconfigure --frontend=noninteractive gdm'
elif self.gnome3:
cmd = '/usr/sbin/dpkg-reconfigure --frontend=noninteractive gdm3'
else:
cmd = '/usr/sbin/dpkg-reconfigure --frontend=noninteractive lightdm'
cmd2 = "/usr/sbin/dpkg --configure lightdm"
self.lightdm = True
path = '/etc/X11/default-display-manager'
opt = '/usr/sbin/lightdm\n'
mode = 0o644
uid = 0
gid = 0
try:
if not self.setFileContents(path, opt, [uid, gid, mode]):
retval = False
if not self.ph.check('lightdm'):
self.logger.log(
LogPriority.DEBUG,
"Package: lightdm not installed yet. Installing lightdm..."
)
if not self.ph.install('lightdm'):
retval = False
self.detailedresults += "\nFailed to install lightdm"
if not self.ch.executeCommand(cmd):
retval = False
self.detailedresults += "\nFailed to set lightdm as default display manager"
self.ch.executeCommand(cmd2)
if retval:
self.detailedresults += "\nThe display manager has been changed to lightdm. These changes will only take effect once the system has been restarted."
else:
self.detailedresults += "\nFailed to change default display manager to lightdm. Login banner may not display."
except Exception:
raise
return retval
def setgnome3(self):
'''set up all variables for use with gnome3-based systems
@author: Breen Malmberg
'''
self.gnome3 = True
self.gnome3bannertext = GDM3WARNINGBANNER
def setkde(self):
'''set up all variables for use with kde-based systems
@author: Breen Malmberg
'''
self.kde = True
self.kdebannertext = ALTWARNINGBANNER
self.kdelocs = [
'/etc/kde/kdm/kdmrc', '/etc/kde3/kdm/kdmrc', '/etc/kde4/kdm/kdmrc',
'/usr/share/config/kdm/kdmrc', '/usr/share/kde4/config/kdm/kdmrc'
]
self.kdefile = '/usr/share/kde4/config/kdm/kdmrc'
for loc in self.kdelocs:
if os.path.exists(loc):
self.kdefile = str(loc)
tmpfile = self.kdefile + '.stonixtmp'
key1 = 'GreetString'
val1 = '"' + str(self.kdebannertext) + '"'
self.greetbanner = [key1, val1]
key2 = 'UserList'
val2 = 'false'
key3 = 'UseTheme'
val3 = 'false'
key4 = 'PreselectUser'
val4 = 'None'
key5 = 'LogoArea'
val5 = 'None'
key6 = 'GreeterPos'
val6 = '45,45'
key7 = 'AntiAliasing'
val7 = 'false'
key8 = 'SortUsers'
val8 = 'false'
key9 = 'GreetFont'
val9 = 'Serif,20,-1,5,50,0,0,0,0,0'
key10 = 'FailFont'
val10 = 'Sans Serif,10,-1,5,75,0,0,0,0,0'
bkey1 = 'PreselectUser'
bval1 = 'None'
self.kdedict = {
"X-*-Greeter": {
key2: val2,
key3: val3,
key4: val4,
key5: val5,
key6: val6,
key7: val7,
key8: val8,
key9: val9,
key10: val10
},
"X-:*-Greeter": {
bkey1: bval1
}
}
self.kdeditor = KVEditorStonix(self.statechglogger, self.logger,
"tagconf", self.kdefile, tmpfile,
self.kdedict, "present", "closedeq")
def setlightdm(self):
'''set up all variables for use with lightdm-based systems
@author: Breen Malmberg
'''
self.lightdm = True
self.ldmbannertext = ALTWARNINGBANNER
key1 = '/usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf'
val1 = [
'[SeatDefaults]', 'allow-guest=false', 'greeter-hide-users=true',
'greeter-show-manual-login=true', 'autologin-user='******'/etc/lightdm/lightdm.conf.d/stonixlightdm.conf'
val3 = [
'[SeatDefaults]',
'greeter-setup-script=/bin/sh -c "until /usr/bin/zenity ' +
'--width=600 --height=400 --title=WARNING --text-info ' +
'--filename=' + str(self.loginbannerfile) + '; do :; done"'
]
self.lightdmdict = {key1: val1, key2: val2, key3: val3}
def setlinuxcommon(self):
'''set up all variables for use with linux-based systems
@author: Breen Malmberg
'''
if not self.sshdfile:
self.sshdfile = '/etc/ssh/sshd_config'
self.bannerfiles = [
"/etc/banners/in.ftpd", "/etc/banners/in.rlogind",
"/etc/banners/in.rshd", "/etc/banners/in.telnetd", "/etc/banner"
]
def setcommon(self):
'''set up all variables for use with all systems
@author: Breen Malmberg
'''
self.loginbannerfile = "/etc/issue"
self.sshbannerfile = "/etc/banner"
self.sshdfile = ""
self.sshdlocs = [
"/etc/sshd_config", "/etc/ssh/sshd_config",
"/private/etc/ssh/sshd_config", "/private/etc/sshd_config"
]
for loc in self.sshdlocs:
if os.path.exists(loc):
self.sshdfile = str(loc)
self.sshbannerdict = {"Banner": self.sshbannerfile}
def setmac(self):
'''set up all variables for use with darwin-based systems
@author: Breen Malmberg
'''
self.mac = True
self.bannertext = WARNINGBANNER
if not self.sshdfile:
self.sshdfile = '/private/etc/sshd_config'
self.ftpwelcomelocs = ["/etc/ftpwelcome", "/private/etc/ftpwelcome"]
self.ftpwelcomefile = '/private/etc/ftpwelcome'
for loc in self.ftpwelcomelocs:
if os.path.exists(loc):
self.ftpwelcomefile = str(loc)
self.policybanner = "/Library/Security/PolicyBanner.txt"
self.addKVEditor(
"FileServerBannerText", "defaults",
"/Library/Preferences/com.apple.AppleFileServer", "", {
"loginGreeting":
[re.escape(WARNINGBANNER), "'\"" + WARNINGBANNER + "\"'"]
}, "present", "",
"To prevent the installation of a warning banner," +
" set the value of InstallBanners to False", self.ci)
self.addKVEditor(
"loginwindowBannerText", "defaults",
"/Library/Preferences/com.apple.loginwindow", "", {
"LoginwindowText": [
re.escape(OSXSHORTWARNINGBANNER),
'"' + OSXSHORTWARNINGBANNER + '"'
]
}, "present", "",
"To prevent the installation of a warning banner," +
" set the value of InstallBanners to False", self.ci)
def ismac(self):
'''determine whether the current system is macintosh, or darwin-based
@author: Breen Malmberg
'''
try:
if self.environ.getosfamily() == 'darwin':
self.setmac()
self.logger.log(
LogPriority.DEBUG,
"System is Mac OS. Configuring Mac banners...")
except Exception:
raise
def islinux(self):
'''determine whether the current system is linux-based, and set all
distro-specific variables
@author: Breen Malmberg
'''
try:
if self.environ.getosfamily() == 'linux':
self.linux = True
self.setlinuxcommon()
if os.path.exists("/usr/sbin/gdm3"):
self.setgnome3()
elif os.path.exists("/usr/sbin/gdm"):
self.ch.executeCommand("/usr/sbin/gdm --version")
gnomeversionstring = self.ch.getOutputString()
if re.search("GDM\s+3\.", gnomeversionstring,
re.IGNORECASE):
self.setgnome3()
else:
self.setgnome2()
if os.path.exists("/usr/sbin/lightdm"):
self.setlightdm()
if os.path.exists("/usr/bin/startkde"):
self.setkde()
except Exception:
raise
def getFileContents(self, filepath, returntype='list'):
'''Retrieve and return file contents (in list format) of a given file path
:param filepath: string full path to file to read
:param returntype: string valid values: 'list', 'string' (Default value = 'list')
:returns: filecontents
:rtype: list
@author: Breen Malmberg
'''
self.logger.log(LogPriority.DEBUG,
"Retrieving contents of file " + filepath)
try:
if returntype == 'list':
filecontents = []
elif returntype == 'string':
filecontents = ''
else:
filecontents = ''
self.detailedresults += "\nReturntype parameter must be " + \
"either 'list' or 'string!'"
if os.path.exists(filepath):
f = open(filepath, 'r')
if returntype == 'list':
filecontents = f.readlines()
elif returntype == 'string':
filecontents = f.read()
f.close()
else:
self.detailedresults += '\nCould not find specified file: ' + \
str(filepath) + '. Returning empty value...'
except Exception:
raise
return filecontents
def setFileContents(self, filepath, contents, perms=[0, 0, 0o644]):
'''write (or append) specified contents to specified file
:param filepath: string full path to file
:param contents: list/string object to write to file (can be either
list or string)
:param mode: string indicates the IO method to use to open the file.
Valid values are 'w' for write, and 'a' for append
:param perms: integer-list of size 3. first index/position in list
indicates octal permissions flag; second indicates uid; third
indicates gid (Default value = [0)
:param 0:
:param 0644]:
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
retval = True
tmpPath = filepath + ".stonixtmp"
self.logger.log(LogPriority.DEBUG,
"Writing changes to file " + filepath)
try:
if os.path.exists(filepath):
f = open(tmpPath, "w")
if isinstance(contents, list):
f.writelines(contents)
else:
f.write(contents)
f.close()
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'conf', 'filepath': filepath}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(filepath, tmpPath, myid)
os.rename(tmpPath, filepath)
os.chmod(filepath, perms[2])
os.chown(filepath, perms[0], perms[1])
else:
# get the parent directory of filepath
basepath = ("/").join(filepath.split("/")[:-1])
# create parent directory if it doesn't exist
if not os.path.exists(basepath):
os.makedirs(basepath, 0o755)
# then create the file
f = open(filepath, "w")
if isinstance(contents, list):
f.writelines(contents)
else:
f.write(contents)
f.close()
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'creation', 'filepath': filepath}
self.statechglogger.recordchgevent(myid, event)
os.chmod(filepath, perms[2])
os.chown(filepath, perms[0], perms[1])
if not fixInflation(filepath, self.logger, perms[2],
[perms[0], perms[1]]):
retval = False
except Exception:
retval = False
raise
return retval
def replaceFileContents(self, filepath, contentdict):
'''replace key from contentdict with value from contentdict, in filepath
:param filepath: string full path to file
:param contentdict: dictionary of strings
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
retval = True
appends = []
self.logger.log(LogPriority.DEBUG,
"Replacing any existing, incorrect configurations...")
try:
contentlines = self.getFileContents(filepath)
for line in contentlines:
for key in contentdict:
if any((re.search("\*", key), re.search("\*", line))):
if re.search("^" + re.escape(key), re.escape(line)):
contentlines = [
c.replace(line, key + contentdict[key])
for c in contentlines
]
else:
if re.search("^" + key, line):
contentlines = [
c.replace(line, key + contentdict[key])
for c in contentlines
]
for key in contentdict:
if key.strip() not in contentlines:
appends.append(key + contentdict[key])
self.appendFileContents(filepath, contentlines, appends)
except Exception:
self.rulesuccess = False
raise
return retval
def appendFileContents(self, filepath, contents, appends):
'''
:param filepath:
:param contents:
:param appends:
'''
self.logger.log(LogPriority.DEBUG,
"Appending missing configuration lines...")
for a in appends:
contents.append(a + "\n")
self.setFileContents(filepath, contents)
def reportFileContents(self, filepath, searchparams):
'''verify that the give key:value pairs in contentdict exist in filepath
:param filepath: string full path to file
:param searchparams: list or string to search in file contents
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
retval = True
foundDict = {}
findresult = 999
foundstring = False
try:
if not os.path.exists(filepath):
retval = False
self.detailedresults += "\nRequired configuration file " + filepath + " does not exist"
return retval
if isinstance(searchparams, str):
contents = self.getFileContents(filepath, "string")
findresult = contents.find(searchparams)
if findresult != -1:
foundstring = True
if not foundstring:
retval = False
self.logger.log(
LogPriority.DEBUG,
"str.find() return code = " + str(findresult))
self.detailedresults += "\nSearch parameter:\n" + searchparams + "\nis missing from " + filepath
elif isinstance(searchparams, list):
for p in searchparams:
foundDict[p] = False
contentlines = self.getFileContents(filepath)
for line in contentlines:
for p in searchparams:
if line.find(p) != -1:
foundDict[p] = True
for i in foundDict:
if not foundDict[i]:
retval = False
self.detailedresults += "\nSearch parameter:\n" + i + "\nis missing from " + filepath
except Exception:
raise
return retval
def checkCommand(self, cmd, val="", regex=True):
'''check the output of a given command to see if it matches given value
:param cmd:
:param val: (Default value = "")
:param regex: (Default value = True)
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
retval = True
try:
self.ch.executeCommand(cmd)
retcode = self.ch.getReturnCode()
# gconftool-2 returns either 0 or -1 on error
if re.search("gconftool-2", cmd):
if retcode == -1:
retval = False
errstr = self.ch.getErrorString()
self.logger.log(LogPriority.DEBUG, errstr)
self.detailedresults += "\nCommand:\n" + cmd + "\nFailed"
else:
# all other programs return 0 on success
if retcode != 0:
retval = False
errstr = self.ch.getErrorString()
self.logger.log(LogPriority.DEBUG, errstr)
if val:
outputstr = self.ch.getOutputString()
if not regex:
# outputstr = outputstr.strip()
# val = val.strip()
if outputstr.find(val) == -1:
retval = False
self.detailedresults += "\nDesired output:\n"
self.detailedresults += val
self.detailedresults += "\n\nActual output:\n"
self.detailedresults += outputstr
else:
if not re.search(val, outputstr, re.IGNORECASE):
retval = False
self.logger.log(
LogPriority.DEBUG,
"Could not find search regex:\n" + val +
"\nin command output")
except Exception:
raise
return retval
def report(self):
'''The report method examines the current configuration and determines
whether or not it is correct. If the config is correct then the
self.compliant, self.detailed results and self.currstate properties are
updated to reflect the system status. self.rulesuccess will be updated
if the rule does not succeed.
:returns: self.compliant
:rtype: boolean
@author Breen Malmberg
'''
self.compliant = True
self.detailedresults = ""
try:
if self.linux:
if not self.reportlinux():
self.compliant = False
elif self.mac:
if not self.reportmac():
self.compliant = False
else:
self.compliant = False
self.detailedresults += '\nCould not identify operating system, or operating system not supported.'
except (KeyboardInterrupt, SystemExit):
raise
except Exception as err:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def getgnome3version(self):
'''get the gnome3 version as a float
:returns: g3ver
:rtype: float
@author: Breen Malmberg
'''
g3ver = 0.0
cmd = '/usr/sbin/gdm3 --version'
backupcmd = '/usr/bin/gnome-session --version'
if not any((self.checkCommand(cmd), self.checkCommand(backupcmd))):
return g3ver
else:
outlines = self.ch.getOutput()
for line in outlines:
sline = line.split()
if len(sline) > 1:
splitver = sline[1].split('.')
combinedver = splitver[0] + '.' + splitver[1]
g3ver = float(combinedver)
else:
try:
g3ver = float(sline[0])
except Exception:
return g3ver
return g3ver
def reportlinux(self):
'''run report functionality for linux-based systems
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
compliant = True
try:
if all((self.gnome3,
re.search('debian', self.environ.getostype(),
re.IGNORECASE))):
if self.getgnome3version() < 3.15:
self.gnome3 = False
self.forcelightdm()
self.setlightdm()
if not self.reportlinuxcommon():
compliant = False
if self.gnome2:
if not self.reportgnome2():
compliant = False
elif self.gnome3:
if not self.reportgnome3():
compliant = False
if self.lightdm:
if not self.reportlightdm():
compliant = False
if self.kde:
if not self.reportkde():
compliant = False
except Exception:
raise
return compliant
def reportlinuxcommon(self):
'''run report functionality which is common to linux platforms
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
compliant = True
try:
for f in self.bannerfiles:
if not self.reportFileContents(f, WARNINGBANNER):
compliant = False
if not self.reportcommon():
compliant = False
except Exception:
raise
return compliant
def reportcommon(self):
'''run report functionality which is common to all platforms
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
compliant = True
if not os.path.exists(self.sshdfile):
self.detailedresults += "Required configuration file " + self.ssdhfile + \
" does not exist.\n"
return False
contents = readFile(self.sshdfile, self.logger)
self.commoneditor = KVEditorStonix(self.statechglogger, self.logger,
"conf", self.sshdfile,
self.sshdfile + ".tmp",
self.sshbannerdict, "present",
"space")
if not self.commoneditor.report():
compliant = False
self.detailedresults += self.sshdfile + " doesn't contain correct contents\n"
return compliant
def reportgnome2(self):
'''run report functionality for gnome2-based systems
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
compliant = True
try:
gconf = "/usr/bin/gconftool-2"
confDict = {
"/apps/gdm/simple-greeter/disable_user_list": "true",
"/apps/gdm/simple-greeter/banner_message_enable": "true",
"/apps/gdm/simple-greeter/banner_message_text":
ALTWARNINGBANNER
} # gdm 2 db cannot reliably store/preserve/interpret newline characters
gconfcommands = []
for item in confDict:
gconfcommands.append(gconf + " -g " + item)
for gcmd in gconfcommands:
if not self.checkCommand(gcmd, confDict[gcmd.split()[2]],
False):
compliant = False
except Exception:
raise
return compliant
def reportgnome3(self):
'''run report functionality for gnome3-based systems
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
compliant = True
try:
if not self.checkprofilecfg():
compliant = False
if not self.checkkeyfilecfg():
compliant = False
except Exception:
raise
return compliant
def checkprofilecfg(self):
''' '''
compliant = True
profilefile = "/etc/dconf/profile/gdm"
profileoptslist = ["user-db:user", "system-db:gdm"]
if not self.reportFileContents(profilefile, profileoptslist):
compliant = False
return compliant
def checkkeyfilecfg(self):
''' '''
compliant = True
keyfile = "/etc/dconf/db/gdm.d/01-banner-message"
keyfileoptslist = [
"[org/gnome/login-screen]", "banner-message-enable=true",
"banner-message-text='" + GDM3WARNINGBANNER + "'",
"disable-user-list=true"
]
if not self.reportFileContents(keyfile, keyfileoptslist):
compliant = False
return compliant
def reportlightdm(self):
'''run report functionality for lightdm-based systems
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
compliant = True
try:
for item in self.lightdmdict:
if not self.reportFileContents(item, self.lightdmdict[item]):
compliant = False
self.detailedresults += '\nRequired configuration text not found in: ' + str(
item)
except Exception:
raise
return compliant
def reportkde(self):
'''run report functionality for kde-based systems
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
retval = True
try:
if not os.path.exists(self.kdefile):
retval = False
self.detailedresults += 'Required configuration file: ' + str(
self.kdefile) + ' not found'
else:
if not self.kdeditor.report():
retval = False
if self.kdeditor.fixables:
self.detailedresults += '\nThe following required options are missing from ' + \
str(self.kdefile) + ':\n' + '\n'.join(str(f) for f in self.kdeditor.fixables) \
+ '\n'
except Exception:
raise
return retval
def reportmac(self):
'''run report functionality for macintosh, or darwin-based systems
:returns: retval
:rtype: boolean
@author: Breen Malmberg
'''
retval = True
try:
if not RuleKVEditor.report(self, True):
self.detailedresults += '\nEither file server banner text ' + \
'or login window banner text is incorrect, or both'
retval = False
if os.path.exists(self.ftpwelcomefile):
if not self.reportFileContents(self.ftpwelcomefile,
self.bannertext):
retval = False
self.detailedresults += '\nIncorrect configuration ' + \
'text in: ' + str(self.ftpwelcomefile)
else:
retval = False
self.detailedresults += '\nRequired configuration file: ' + \
str(self.ftpwelcomefile) + ' not found'
if os.path.exists(self.policybanner):
if not self.reportFileContents(self.policybanner,
self.bannertext):
retval = False
self.detailedresults += '\nIncorrect configuration ' + \
'text in: ' + str(self.policybanner)
else:
retval = False
self.detailedresults += '\nRequired configuration file: ' + \
str(self.policybanner) + ' not found'
if not self.reportcommon():
retval = False
except Exception:
raise
return retval
def fix(self):
'''Install warning banners, set the warning text and configure the
file permissions for the warning banner files.
:returns: success
:rtype: boolean
@author Breen Malmberg
'''
self.rulesuccess = True
self.detailedresults = ""
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
try:
if self.ci.getcurrvalue():
if not self.fixcommon():
self.rulesuccess = False
if self.linux:
if not self.fixlinux():
self.rulesuccess = False
elif self.mac:
if not self.fixmac():
self.rulesuccess = False
else:
self.rulesuccess = False
self.detailedresults += '\nCould not identify ' + \
'operating system, or operating system not supported.'
else:
self.detailedresults += '\nThe configuration item for ' + \
'this rule was not enabled so nothing was done.'
except (KeyboardInterrupt, SystemExit):
raise
except Exception as err:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixlinux(self):
'''run fix functionality for linux-based systems
:returns: success
:rtype: boolean
@author: Breen Malmberg
'''
success = True
try:
if not self.fixlinuxcommon():
success = False
if self.gnome2:
if not self.fixgnome2():
success = False
elif self.gnome3:
if not self.fixgnome3():
success = False
if self.lightdm:
if not self.fixlightdm():
success = False
if self.kde:
if not self.fixkde():
success = False
except Exception:
raise
return success
def fixlinuxcommon(self):
'''run fix functionality which is common to linux platforms
:returns: success
:rtype: boolean
@author: Breen Malmberg
'''
success = True
try:
for f in self.bannerfiles:
if not self.setFileContents(f, WARNINGBANNER):
success = False
except Exception:
raise
return success
def fixcommon(self):
'''run fix functionlity which is common to all platforms
:returns: success
:rtype: boolean
@author: Breen Malmberg
'''
success = True
if self.commoneditor.fixables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.commoneditor.setEventID(myid)
if not self.commoneditor.fix():
debug = self.sshdfile + " editor fix is returning false\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
elif not self.commoneditor.commit():
debug = self.sshdfile + " editor commit is returning false\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
if not success:
self.detailedresults += "Unable to correct contents of " + \
self.sshdfile + "\n"
return success
def fixgnome2(self):
'''run fix functionality for gnome2-based systems
(implementation based on: https://access.redhat.com/solutions/32480)
:returns: success
:rtype: boolean
@author: Breen Malmberg
'''
success = True
gconf = "/usr/bin/gconftool-2"
confDict = {
"/apps/gdm/simple-greeter/disable_user_list":
"boolean true",
"/apps/gdm/simple-greeter/banner_message_enable":
"boolean true",
"/apps/gdm/simple-greeter/banner_message_text":
'string "$(cat /etc/issue)"'
}
gconfcommands = []
for item in confDict:
gconfcommands.append(
gconf + " -s " + item +
" --config-source=xml:readwrite:/etc/gconf/gconf.xml.system --direct --type "
+ confDict[item])
try:
if not self.setFileContents("/etc/issue", GDMWARNINGBANNER):
success = False
self.detailedresults += "\nFailed to properly configure the banner text in file /etc/issue"
# write configuration options to gnome system-wide database
for gcmd in gconfcommands:
if not self.checkCommand(gcmd):
success = False
except Exception:
raise
return success
def fixgnome3(self):
'''run fix functionality for gnome3-based systems
:returns: success
:rtype: boolean
@author: Breen Malmberg
'''
success = True
try:
if not self.setFileContents("/etc/issue", GDM3WARNINGBANNER):
success = False
self.detailedresults += "\nFailed to properly configure the banner text in file /etc/issue"
self.logger.log(LogPriority.DEBUG,
"Applying gdm profile configurations...")
# configure the gdm profile
greeterdefaults = ""
gdefaultslocs = [
"/usr/share/gdm/greeter-dconf-defaults",
"/usr/share/gdm/greeter.dconf-defaults"
]
for loc in gdefaultslocs:
if os.path.exists(loc):
greeterdefaults = loc
profilebasedir = "/etc/dconf/profile"
profilepath = profilebasedir + "/gdm"
profileconflist = [
"user-db:user\n", "system-db:gdm\n",
"file-db:" + greeterdefaults + "\n"
]
if not os.path.exists(profilebasedir):
self.logger.log(
LogPriority.DEBUG,
"gdm profile base directory does not exist. Creating it..."
)
os.makedirs(profilebasedir, 0o755)
if not self.setFileContents(profilepath, profileconflist):
success = False
self.logger.log(LogPriority.DEBUG,
"Applying gdm keyfile configurations...")
# configure the gdm keyfile
gdmkeyfilebase = "/etc/dconf/db/gdm.d"
gdmkeyfile = gdmkeyfilebase + "/01-banner-message"
gdmkeyfileconflist = [
"[org/gnome/login-screen]\n", "banner-message-enable=true\n",
"banner-message-text='" + GDM3WARNINGBANNER + "'\n",
"disable-user-list=true\n"
]
if not os.path.exists(gdmkeyfilebase):
self.logger.log(
LogPriority.DEBUG,
"gdm keyfile base directory does not exist. Creating it..."
)
os.makedirs(gdmkeyfilebase, 0o755)
if not self.setFileContents(gdmkeyfile, gdmkeyfileconflist):
success = False
self.logger.log(
LogPriority.DEBUG,
"Updating dconf with new configuration settings...")
# update dconf
dconfupdate = "/usr/bin/dconf update"
if not self.checkCommand(dconfupdate):
success = False
if success:
self.detailedresults += "\nSuccessfully applied new banner configuration settings. On some systems, a reboot may be required to view updated settings"
except Exception:
raise
return success
def fixlightdm(self):
'''run fix functionality for lightdm-based systems
:returns: success
:rtype: boolean
@author: Breen Malmberg
'''
success = True
contentlines = []
try:
if not os.path.exists('/etc/lightdm/lightdm.conf.d'):
os.makedirs('/etc/lightdm/lightdm.conf.d/', 0o755)
for f in self.lightdmdict:
contentlines = []
if isinstance(self.lightdmdict[f], list):
for opt in self.lightdmdict[f]:
contentlines.append(opt + '\n')
if not self.setFileContents(f, contentlines):
success = False
else:
if not self.setFileContents(f, self.lightdmdict[f]):
success = False
except Exception:
raise
return success
def fixkde(self):
'''run fix functionality for kde-based systems
:returns: success
:rtype: boolean
@author: Breen Malmberg
@change: Breen Malmberg - 5/25/2016 - moved the commit calls to ensure
they are only called if the fix calls completed successfully
'''
success = True
try:
if not self.kdefile:
self.logger.log(
LogPriority.DEBUG,
"Unable to identify kde configuration file. " +
"Can not continue with fix")
self.detailedresults += "Unable to identify kde " + \
"configuration file. Can not continue with fix."
success = False
return success
fileCreated = False
if not os.path.exists(self.kdefile):
if createFile(self.kdefile, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": self.kdefile}
self.statechglogger.recordchgevent(myid, event)
fileCreated = True
debug = "kdmrc file successfully created at " + \
self.kdefile
self.logger.log(LogPriority.DEBUG, debug)
setPerms(self.kdefile, [0, 0, 0o644], self.logger)
self.reportkde()
else:
self.detailedresults += "\nCould not create kdmrc file " + \
"at " + self.kdefile
return False
if not self.kdeditor.fix():
success = False
self.detailedresults += "KVEditor fix failed. Fix not applied"
else:
if not fileCreated:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.kdeditor.setEventID(myid)
if not self.kdeditor.commit():
success = False
self.detailedresults += 'kdeditor commit failed. ' + \
'Fix not applied'
key1 = 'GreetString'
val1 = '"' + self.kdebannertext + '"'
data = {"X-*-Greeter": {key1: val1}}
tmpfile = self.kdefile + ".stonixtmp2"
greeteditor = KVEditorStonix(self.statechglogger, self.logger,
"tagconf", self.kdefile, tmpfile,
data, "present", "closedeq")
if not greeteditor.report():
if greeteditor.fix():
if not greeteditor.commit():
if not fileCreated:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.kdeditor.setEventID(myid)
success = False
self.detailedresults += "\nGreetString commit failed"
else:
success = False
self.detailedresults += "\nGreetString fix failed"
except Exception:
raise
return success
def fixmac(self):
'''run fix functionality for macintosh, or darwin-based systems
:returns: success
:rtype: boolean
@author: Breen Malmberg
'''
success = True
try:
if not RuleKVEditor.fix(self, True):
success = False
if not self.setFileContents(self.ftpwelcomefile, self.bannertext):
success = False
self.detailedresults += '\nUnable to set warning banner text in ' + str(
self.ftpwelcomefile)
if not self.setFileContents(self.policybanner, self.bannertext):
success = False
self.detailedresults += '\nUnable to set warning banner text in ' + str(
self.policybanner)
except Exception:
raise
return success
class SecureNFS(Rule):
def __init__(self, config, environ, logger, statechglogger):
"""
:param config:
:param environ:
:param logger:
:param statechglogger:
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 39
self.rulename = "SecureNFS"
self.formatDetailedResults("initialize")
self.sethelptext()
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
}
}
self.guidance = [
"NSA(3.13.4)", "cce-4241-6", "cce-4465-1", "cce-4559-1",
"cce-4015-4", "cce-3667-3", "cce-4310-9", "cce-4438-8",
"cce-3579-0"
]
# Configuration item instantiation
datatype = 'bool'
key = 'SECURENFS'
instructions = "To disable this rule set the value of SECURENFS to False."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
def report(self):
"""
Run report actions for SecureNFS
:return: self.compliant
:rtype: bool
"""
self.detailedresults = ""
self.compliant = True
nfsexports = True
try:
if self.environ.getosfamily() == "linux":
self.ph = Pkghelper(self.logger, self.environ)
# secure NFS service
self.sh = ServiceHelper(self.environ, self.logger)
if self.environ.getostype() == "Mac OS X":
nfsfile = "/etc/nfs.conf"
data1 = {
"nfs.lockd.port": "",
"nfs.lockd.tcp": "1",
"nfs.lockd.udp": "1"
}
if not self.sh.auditService('/System/Library/LaunchDaemons/' +
'com.apple.nfsd.plist',
serviceTarget='com.apple.nfsd'):
self.compliant = True
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO,
self.detailedresults)
return self.compliant
elif self.ph.manager in ("yum", "zypper", "dnf"):
nfsfile = "/etc/sysconfig/nfs"
data1 = {
"LOCKD_TCPPORT": "32803",
"LOCKD_UDPPORT": "32769",
"MOUNTD_PORT": "892",
"RQUOTAD_PORT": "875",
"STATD_PORT": "662",
"STATD_OUTGOING_PORT": "2020"
}
if self.ph.manager == "zypper":
nfspackage = "nfs-kernel-server"
elif self.ph.manager == "yum" or self.ph.manager == "dnf":
nfspackage = "nfs-utils"
elif self.ph.manager == "apt-get":
nfsfile = "/etc/services"
data1 = {
"rpc.lockd": ["32803/tcp", "32769/udp"],
"rpc.mountd": ["892/tcp", "892/udp"],
"rpc.quotad": ["875/tcp", "875/udp"],
"rpc.statd": ["662/tcp", "662/udp"],
"rpc.statd-bc": ["2020/tcp", "2020/udp"]
}
nfspackage = "nfs-kernel-server"
if self.environ.getostype() != "Mac OS X":
if self.ph.manager in ("apt-get", "zypper", "yum", "dnf"):
if not self.ph.check(nfspackage):
self.compliant = True
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO,
self.detailedresults)
return self.compliant
if os.path.exists(nfsfile):
nfstemp = nfsfile + ".stonixtmp"
eqtype = ""
eqtypestr = ""
if self.environ.getostype() == "Mac OS X":
eqtype = "openeq"
self.editor1 = KVEditorStonix(self.statechglogger,
self.logger, "conf", nfsfile,
nfstemp, data1, "present",
eqtype)
elif self.ph.manager in ("yum", "zypper", "dnf"):
eqtype = "closedeq"
self.editor1 = KVEditorStonix(self.statechglogger,
self.logger, "conf", nfsfile,
nfstemp, data1, "present",
eqtype)
elif self.ph.manager == "apt-get":
eqtype = "space"
self.editor1 = KVEditorStonix(self.statechglogger,
self.logger, "conf", nfsfile,
nfstemp, data1, "present",
eqtype)
if eqtype == "openeq":
eqtypestr = " = "
elif eqtype == "closedeq":
eqtypestr = "="
elif eqtype == "space":
eqtypestr = " "
if not self.editor1.report():
if self.editor1.fixables:
missingconfiglines = []
for item in self.editor1.fixables:
if isinstance(data1[item], list):
for li in data1[item]:
missingconfiglines.append(
str(item) + eqtypestr + str(li))
else:
missingconfiglines.append(
str(item) + eqtypestr + str(data1[item]))
self.detailedresults += "\nThe following configuration lines are missing from " + str(
nfsfile) + ":\n" + "\n".join(missingconfiglines)
else:
self.detailedresults += "\nOne or more configuration lines are missing from " + str(
nfsfile)
self.logger.log(LogPriority.DEBUG, self.detailedresults)
self.compliant = False
if not checkPerms(nfsfile, [0, 0, 420], self.logger):
self.detailedresults += "\nPermissions aren't correct on " \
+ nfsfile
self.logger.log(LogPriority.DEBUG, self.detailedresults)
self.compliant = False
else:
self.detailedresults += "\n" + nfsfile + " does not exist"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
self.compliant = False
# secure NFS exports
export = "/etc/exports"
if os.path.exists(export):
if not self.checkNFSexports():
nfsexports = False
extemp = export + ".stonixtmp"
data2 = {
"all_squash": "",
"no_root_squash": "",
"insecure_locks": ""
}
self.editor2 = KVEditorStonix(self.statechglogger, self.logger,
"conf", export, extemp, data2,
"notpresent", "space")
if not self.editor2.report():
incorrectconfiglines = []
if self.editor2.fixables:
for item in self.editor2.fixables: # no fixables being generated for items not compliant with data2 and the "notpresent" directive
incorrectconfiglines.append(str(item))
self.detailedresults += "\nThe following configuration options are insecure, in file " + str(
export) + ":\n" + "\n".join(incorrectconfiglines)
self.logger.log(LogPriority.DEBUG, self.detailedresults)
self.compliant = False
if not checkPerms(export, [0, 0, 420], self.logger):
self.detailedresults += "\n" + export + " file doesn't " + \
"have the correct permissions"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
self.compliant = False
if not nfsexports:
self.compliant = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def checkNFSexports(self):
"""
check the NFS export lines in the exports configuration file
:return: retval
:rtype: bool
"""
retval = True
filename = "/etc/exports"
directory = "/etc/exports.d"
fileslist = []
try:
if os.path.exists(filename):
f = open(filename, "r")
contentlines = f.readlines()
f.close()
if not self.checkNFScontents(contentlines, filename):
retval = False
if os.path.exists(directory):
fileslist = [
f for f in listdir(directory) if isfile(join(directory, f))
]
if fileslist:
for filename in fileslist:
f = open(filename, "r")
contentlines = f.readlines()
f.close()
if not self.checkNFScontents(contentlines, str(f)):
retval = False
else:
self.logger.log(LogPriority.DEBUG, "No NFS exports to check")
except Exception:
raise
return retval
def checkNFScontents(self, contentlines, filename=""):
"""
check given list of contentlines for required nfs export formatting
:param contentlines:
:param filename: (Default value = "")
:return: retval
:rtype: bool
"""
retval = True
if not filename:
filename = "(file name not specified)"
if not isinstance(filename, str):
filename = "(file name not specified)"
if not isinstance(contentlines, list):
self.logger.log(LogPriority.DEBUG,
"Parameter contentlines must be of type: list!")
if not contentlines:
self.logger.log(LogPriority.DEBUG,
"Parameter contentlines was empty!")
try:
if contentlines:
for line in contentlines:
if re.search('^#', line):
continue
elif re.search('^\/', line):
# search for overly broad exports
broadexports = [
'^\/\w+.*\s*\d{2,3}\.\d{2,3}\.0\.0\/16\b',
'^\/\w+.*\s*\d{1,3}\.0\.0\.0\/8\b',
'^\/\w+.*\s*.*\*.*'
]
for be in broadexports:
if re.search(be, line):
retval = False
self.detailedresults += "The nfs export line:\n" + str(
line
) + "\nin " + str(
filename
) + " contains an export that is overly broad."
else:
if re.search('^([^ !$`&*()+]|(\\[ !$`&*()+]))+\s*',
line):
sline = line.split()
if len(sline) < 2:
retval = False
self.detailedresults += "\nThe export line:\n" + str(
'\"' + line.strip() + '\"') + " in " + str(
filename
) + " lacks a host specification."
if not retval:
self.detailedresults += "\n\nThere is no automatic fix action for host exports. Please ensure that each NFS export in " + str(
filename
) + " has a host specification.\nSee man exports for help.\n"
except Exception:
raise
return retval
def fix(self):
"""
Run fix actions for SecureNFS
:return: self.rulesuccess
:rtype: bool
@author: dwalker
@change: Breen Malmberg - 4/26/2016 - changed location of defaults variables in method;
added detailedresults message if fix run while CI disabled; added formatdetailedresults update if fix called when CI disabled;
changed return value to always be self.rulesuccess; updated self.rulesuccess based on success variable as well
@change: Breen Malmberg - 7/11/2017 - added another service check on mac os x; no files will be created on mac if the service is not
enabled
"""
self.logdispatch.log(LogPriority.DEBUG, "Entering SecureNFS.fix()...")
success = True
changed1, changed2 = False, False
installed = False
self.detailedresults = ""
try:
if not self.ci.getcurrvalue():
self.detailedresults += "\nThe CI for this rule was not enabled. Nothing has been done."
success = True
self.formatDetailedResults("fix", success,
self.detailedresults)
self.logdispatch.log(LogPriority.DEBUG,
"Exiting SecureNFS.fix()...")
return success
# Clear out event history so only the latest fix is recorded
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if self.environ.getostype() == "Mac OS X":
nfsservice = "nfsd"
nfsfile = "/etc/nfs.conf"
data1 = {
"nfs.lockd.port": "",
"nfs.lockd.tcp": "1",
"nfs.lockd.udp": "1"
}
elif self.ph.manager in ("yum", "zypper", "dnf"):
nfsfile = "/etc/sysconfig/nfs"
data1 = {
"LOCKD_TCPPORT": "32803",
"LOCKD_UDPPORT": "32769",
"MOUNTD_PORT": "892",
"RQUOTAD_PORT": "875",
"STATD_PORT": "662",
"STATD_OUTGOING_PORT": "2020"
}
nfsservice = "nfs"
if self.ph.manager == "zypper":
nfspackage = "nfs-kernel-server"
elif self.ph.manager == "yum" or self.ph.manager == "dnf":
nfspackage = "nfs-utils"
elif self.ph.manager == "apt-get":
nfsservice = "nfs-kernel-server"
nfspackage = "nfs-kernel-server"
nfsfile = "/etc/services"
data1 = {
"rpc.lockd": ["32803/tcp", "32769/udp"],
"rpc.mountd": ["892/tcp", "892/udp"],
"rpc.quotad": ["875/tcp", "875/udp"],
"rpc.statd": ["662/tcp", "662/udp"],
"rpc.statd-bc": ["2020/tcp", "2020/udp"]
}
if self.environ.getostype() != "Mac OS X":
if self.ph.manager in ("apt-get", "zypper"):
if not self.ph.check(nfspackage):
success = True
self.formatDetailedResults("fix", success,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO,
self.detailedresults)
return success
if not os.path.exists(nfsfile):
if createFile(nfsfile, self.logger):
nfstemp = nfsfile + ".stonixtmp"
if self.environ.getostype() == "Mac OS X":
if not self.sh.auditService(
'/System/Library/LaunchDaemons/com.apple.nfsd.plist',
serviceTarget='com.apple.nfsd'):
success = True
self.formatDetailedResults("fix", success,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO,
self.detailedresults)
return success
self.editor1 = KVEditorStonix(self.statechglogger,
self.logger, "conf",
nfsfile, nfstemp, data1,
"present", "openeq")
elif self.ph.manager in ("yum", "zypper", "dnf"):
self.editor1 = KVEditorStonix(self.statechglogger,
self.logger, "conf",
nfsfile, nfstemp, data1,
"present", "closedeq")
elif self.ph.manager == "apt-get":
self.editor1 = KVEditorStonix(self.statechglogger,
self.logger, "conf",
nfsfile, nfstemp, data1,
"present", "space")
if not self.editor1.report():
if not self.editor1.fix():
success = False
debug = "fix for editor1 failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor1.setEventID(myid)
if not self.editor1.commit():
success = False
debug = "commit for editor1 failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
changed1 = True
if not checkPerms(nfsfile, [0, 0, 420], self.logger):
if not setPerms(nfsfile, [0, 0, 420], self.logger,
self.statechglogger):
success = False
debug = "Unable to set permissions on " + nfsfile
self.logger.log(LogPriority.DEBUG, debug)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": nfsfile}
self.statechglogger.recordchgevent(myid, event)
else:
success = False
debug = "Unable to create " + nfsfile + " file"
self.logger.log(LogPriority.DEBUG, debug)
else:
if self.editor1.fixables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor1.setEventID(myid)
if not self.editor1.fix():
success = False
debug = "editor1 fix failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor1.setEventID(myid)
if not self.editor1.commit():
success = False
debug = "editor1 commit failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
changed1 = True
if not checkPerms(nfsfile, [0, 0, 420], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(nfsfile, [0, 0, 420], self.logger,
self.statechglogger, myid):
debug = "Unable to set permissions on " + nfsfile
self.logger.log(LogPriority.DEBUG, debug)
export = "/etc/exports"
if not os.path.exists(export):
# mac os x will automatically enable the nfs
# service and related ports if the file /etc/exports
# is created
if self.environ.getostype() == "Mac OS X":
if not self.sh.auditService(
'/System/Library/LaunchDaemons/com.apple.nfsd.plist',
serviceTarget='com.apple.nfsd'):
success = True
self.formatDetailedResults("fix", success,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO,
self.detailedresults)
return success
if createFile(export, self.logger):
extemp = export + ".stonixtmp"
data2 = {
"all_squash": "",
"no_root_squash": "",
"insecure_locks": ""
}
self.editor2 = KVEditorStonix(self.statechglogger,
self.logger, "conf", export,
extemp, data2, "notpresent",
"space")
if not self.editor2.report():
if not self.editor2.fix():
success = False
debug = "fix for editor2 failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor2.setEventID(myid)
if not self.editor2.commit():
success = False
debug = "commit for editor2 failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
changed2 = True
if not checkPerms(export, [0, 0, 420], self.logger):
if not setPerms(export, [0, 0, 420], self.logger,
self.statechglogger):
success = False
debug = "Unable to set permissions on " + export
self.logger.log(LogPriority.DEBUG, debug)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": export}
self.statechglogger.recordchgevent(myid, event)
else:
if installed:
extemp = export + ".stonixtmp"
data2 = {
"all_squash": "",
"no_root_squash": "",
"insecure_locks": ""
}
self.editor2 = KVEditorStonix(self.statechglogger,
self.logger, "conf", export,
extemp, data2, "notpresent",
"space")
self.editor2.report()
if self.editor2.removeables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor2.setEventID(myid)
if not self.editor2.fix():
success = False
debug = "editor2 fix failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
if not self.editor2.commit():
success = False
debug = "editor2 commit failed"
self.logger.log(LogPriority.DEBUG, debug)
else:
changed2 = True
if not checkPerms(export, [0, 0, 420], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(export, [0, 0, 420], self.logger,
self.statechglogger, myid):
success = False
debug = "Unable to set permissions on " + export
self.logger.log(LogPriority.DEBUG, debug)
if changed1 or changed2:
## CHANGE (Breen Malmberg) 1/23/2017
# The self.sh.reloadservice() call, for SHlaunchd, will start
# the service even if it is not already running.
# We don't want to start THIS service if it is not
# already running/enabled!
# We also don't want to change this functionality at the
# SHlaunchd class-level, because there may be other
# instances in which we want it to do a stop and start
# (aka a full reload), so this decision should be made at
# the rule-level.
##
if self.sh.isRunning(nfsservice, serviceTarget=nfsservice):
self.sh.reloadService(nfsservice, serviceTarget=nfsservice)
self.logdispatch.log(LogPriority.DEBUG,
"Exiting SecureNFS.fix()...")
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", success, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return success
class ConfigureAIDE(Rule):
"""Install and configure Advanced Intrusion Detection Environment (AIDE).
This rule is optional and will install and configure AIDE when it is run."""
def __init__(self, config, environ, logger, statechglogger):
"""
private method to initialize the module
:param config: configuration object instance
:param environ: environment object instance
:param logger: logdispatcher object instance
:param statechglogger: statechglogger object instance
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 110
self.rulename = 'ConfigureAIDE'
self.formatDetailedResults("initialize")
self.sethelptext()
self.guidance = ['NSA(2.1.3)', 'cce-4209-3']
# init CIs
datatype = 'bool'
key = 'CONFIGUREAIDE'
instructions = 'If you set the ConfigureAIDE variable to yes, or ' + \
'true, ConfigureAIDE will install and set up the Advanced ' + \
'Intrusion Detection Environment on this system.'
default = False
self.applicable = {'type': 'white', 'family': ['linux']}
self.ci = self.initCi(datatype, key, instructions, default)
datatype2 = 'string'
key2 = 'AIDEJOBTIME'
instructions2 = """This string contains the time when the cron job for
/usr/sbin/aide --check will run in /etc/crontab. The default value is
00 18 * * 07 (which means weekly, on sundays at 6pm)"""
default2 = "00 18 * * 07"
self.aidetime = self.initCi(datatype2, key2, instructions2, default2)
pattern = "^([0-9]{1,2})\s+([0-9]{1,2})\s+(\*|(3[0-1]|[0-2]?[0-9]))\s+(\*|(0[0-9]|[0-1]?[0-2]))\s+(\*|([0]?[0-7]))$"
self.aidetime.setregexpattern(pattern)
def report(self):
"""Check if AIDE is installed and properly configured.
If the config is correct then the self.compliant, self.detailed results
and self.currstate properties are updated to reflect the system status.
self.rulesuccess will be updated if the rule does not succeed.
:return: self.compliant
:rtype: bool
"""
try:
self.compliant = True
self.detailedresults = ""
self.init_objs()
try:
self.set_aide_paths()
self.set_aide_cron_job()
except:
pass
if not self.report_aide_installed():
self.compliant = False
else:
if not self.report_aide_conf():
self.compliant = False
if not self.report_aide_cronjob():
self.compliant = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def init_objs(self):
"""
"""
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
def set_aide_paths(self):
"""
"""
self.aide_conf_file = ""
aide_conf_paths = ["/etc/aide/aide.conf", "/etc/aide.conf"]
for p in aide_conf_paths:
if os.path.isfile(p):
self.aide_conf_file = p
break
self.aide_package = "aide"
self.aide_cron_file = "/etc/cron.d/stonix_aide_check"
self.aide_bin_path = ""
aide_bin_paths = ["/usr/sbin/aide", "/usr/bin/aide"]
for p in aide_bin_paths:
if os.path.isfile(p):
self.aide_bin_path = p
break
self.crontab_bin = ""
crontab_bin_locs = ["/bin/crontab", "/sbin/crontab"]
for b in crontab_bin_locs:
if os.path.isfile(b):
self.crontab_bin = b
break
def set_aide_cron_job(self):
"""
"""
aidetime = self.aidetime.getcurrvalue()
if not aidetime:
self.aide_cron_job = ""
else:
if self.ph.manager == "apt-get":
self.aide_cron_job = str(
self.aidetime.getcurrvalue()
) + " root nice -n 19 " + self.aide_bin_path + " -c " + self.aide_conf_file + " --check"
else:
self.aide_cron_job = str(self.aidetime.getcurrvalue(
)) + " root nice -n 19 " + self.aide_bin_path + " --check"
def report_aide_installed(self):
"""
:return: compliant
:rtype: bool
"""
compliant = True
if not self.ph.check(self.aide_package):
compliant = False
self.detailedresults += "\naide is not installed"
return compliant
def report_aide_conf(self):
"""
:return: compliant
:rtype: bool
"""
compliant = True
aide_conf_dict = {
"/boot": "R",
"/etc": "R",
"/lib": "R",
"/lib64": "R",
"/sbin$": "R"
}
tmppath = self.aide_conf_file + ".stonixtmp"
self.aide_conf_editor = KVEditorStonix(self.statechglogger,
self.logger, "conf",
self.aide_conf_file, tmppath,
aide_conf_dict, "present",
"space")
if not self.aide_conf_editor.report():
compliant = False
self.detailedresults += "\nThe following aide conf file options are incorrect:\n" + "\n".join(
self.aide_conf_editor.fixables)
return compliant
def report_aide_cronjob(self):
"""
:return: compliant
:rtype: bool
"""
compliant = True
if not os.path.isfile(self.aide_cron_file):
compliant = False
self.detailedresults += "\naide cron job not found"
return compliant
def fix(self):
"""Attempt to install and configure AIDE.
self.rulesuccess will be updated if the rule does not succeed.
:return: self.rulesuccess - True if fix succeeded; False if not
:rtype: bool
"""
self.detailedresults = ""
self.rulesuccess = True
self.iditerator = 0
try:
if not self.ci.getcurrvalue():
self.detailedresults += '\nThis rule is currently not enabled, so nothing was done'
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if not self.fix_aide_installed():
self.rulesuccess = False
if not self.fix_aide_conf():
self.rulesuccess = False
if not self.fix_aide_init():
self.rulesuccess = False
if not self.fix_aide_cronjob():
self.rulesuccess = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fix_aide_conf(self):
"""
:return: success
:rtype: bool
"""
success = True
self.logger.log(LogPriority.DEBUG, "Fixing aide configuration file")
if not self.aide_conf_editor.fix():
success = False
elif not self.aide_conf_editor.commit():
success = False
if not success:
self.logger.log(LogPriority.DEBUG, "Failed to configure aide.conf")
return success
def fix_aide_cronjob(self):
"""
:return: success
:rtype: bool
"""
success = True
self.logger.log(LogPriority.DEBUG, "Creating aide cron job")
try:
f = open(self.aide_cron_file, "w")
f.write(self.aide_cron_job)
f.close()
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": self.aide_cron_file}
self.statechglogger.recordchgevent(myid, event)
except:
success = False
self.logger.log(LogPriority.DEBUG,
"Failed to create aide cron job")
return success
def fix_aide_installed(self):
"""
:return: success
:rtype: bool
"""
success = True
self.logger.log(LogPriority.DEBUG, "Installing aide package")
if not self.ph.install(self.aide_package):
success = False
self.logger.log(LogPriority.DEBUG,
"Failed to install aide package")
if not self.ph.checkAvailable(self.aide_package):
self.logger.log(LogPriority.DEBUG,
"aide package not available on this system")
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "pkghelper",
"pkgname": self.aide_package,
"startstate": "removed",
"endstate": "installed"
}
self.statechglogger.recordchgevent(myid, event)
self.set_aide_paths()
self.set_aide_cron_job()
self.report_aide_conf()
self.report_aide_cronjob()
return success
def fix_aide_init(self):
"""
:return: success
:rtype: bool
"""
success = True
self.logger.log(LogPriority.DEBUG, "Initializing aide database")
if self.ph.manager == "apt-get":
aide_init_cmd = "aideinit"
else:
aide_init_cmd = self.aide_bin_path + " --init"
self.ch.executeCommand(aide_init_cmd)
retcode = self.ch.getReturnCode()
if retcode != 0:
success = False
errmsg = self.ch.getErrorString()
self.logger.log(LogPriority.DEBUG, errmsg)
else:
# to start using the aide database created by aide init,
# remove the 'new' part of the aide database string
# this must be done before check can be run
# (https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-using-aide)
if os.path.isfile('/var/lib/aide/aide.db.new.gz'):
newaidedb = '/var/lib/aide/aide.db.new.gz'
aidedb = '/var/lib/aide/aide.db.gz'
elif os.path.isfile('/var/lib/aide/aide.db.new'):
newaidedb = '/var/lib/aide/aide.db.new'
aidedb = '/var/lib/aide/aide.db'
else:
newaidedb = ""
aidedb = ""
if bool(newaidedb and aidedb):
os.rename(newaidedb, aidedb)
os.chmod(aidedb, 0o600)
os.chown(aidedb, 0, 0)
else:
self.logger.log(LogPriority.DEBUG,
"Failed to locate aide database")
success = False
return success
class SecureCUPS(Rule):
'''With this rule, you can:
Disable the CUPS service
Configure CUPS service
Disable Printer Browsing
Limit Printer Browsing
Disable Print Server Capabilities
Set the Default Auth Type
Setup default set of policy blocks for CUPS
'''
def __init__(self, config, environ, logger, statechglogger):
'''
Constructor
'''
Rule.__init__(self, config, environ, logger, statechglogger)
self.config = config
self.environ = environ
self.logger = logger
self.statechglogger = statechglogger
self.rulenumber = 128
self.rulename = 'SecureCUPS'
self.rulesuccess = True
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.rootrequired = True
self.guidance = ['CCE 4420-6', 'CCE 4407-3']
self.applicable = {
'type': 'white',
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
},
'family': ['linux']
}
# init CIs
datatype1 = 'bool'
key1 = 'SECURECUPS'
instructions1 = 'To prevent to STONIX from securing the CUPS service, set the value of ' + \
'SecureCUPS to False.'
default1 = True
self.SecureCUPS = self.initCi(datatype1, key1, instructions1, default1)
datatype2 = 'bool'
key2 = 'DISABLECUPS'
instructions2 = 'To have STONIX completely disable the CUPS service on this system, set ' + \
'the value of DisableCUPS to True.'
default2 = False
self.DisableCUPS = self.initCi(datatype2, key2, instructions2,
default2)
datatype3 = 'bool'
key3 = 'DISABLEPRINTBROWSING'
instructions3 = 'If this machine is to be used as a print server and you wish to enable automatic client discovery of ' \
'its shared printers/print resources, then set the value of DISABLEPRINTBROWSING TO False'
default3 = True
self.DisablePrintBrowsing = self.initCi(datatype3, key3, instructions3,
default3)
datatype4 = 'string'
key4 = 'PRINTBROWSESUBNET'
instructions4 = 'If this machine is to be used as a print server and you wish to enable automatic client discovery of ' \
'its shared printers/print resources, you may wish to limit that discovery to clients only on a certain subnet. ' \
'Please customize the value of PRINTBROWSESUBNET to match your networks requirements. Ex: 192.168.0.0/16'
default4 = ''
self.PrintBrowseSubnet = self.initCi(datatype4, key4, instructions4,
default4)
datatype5 = 'bool'
key5 = 'DISABLEGENERICPORT'
instructions5 = 'To prevent remote users from potentially connecting ' + \
'to and using locally configured printers by disabling the CUPS print ' + \
'server sharing capabilities, set the value of DisableGenericPort to ' + \
'True.'
default5 = False
self.DisableGenericPort = self.initCi(datatype5, key5, instructions5,
default5)
datatype6 = 'bool'
key6 = 'SETDEFAULTAUTHTYPE'
instructions6 = 'To prevent the defaultauthtype for cups from being ' + \
'set to Digest, set the value of SetDefaultAuthType to False.'
default6 = True
self.SetDefaultAuthType = self.initCi(datatype6, key6, instructions6,
default6)
datatype7 = 'bool'
key7 = 'SETUPDEFAULTPOLICYBLOCKS'
instructions7 = "To prevent default policy blocks for cups from " + \
"being defined in the cups config file, set the value of " + \
"SetupDefaultPolicyBlocks to False. Note that if you choose to setup " + \
"the default set of policy blocks you can (and probably should) edit " + \
"them in the cups config file afterward to customize these policies to " + \
"your site's particular needs."
default7 = False
self.SetupDefaultPolicyBlocks = self.initCi(datatype7, key7,
instructions7, default7)
self.localize()
def localize(self):
'''set various settings and variables and objects based on
which OS is currently running
:returns: void
@author: Breen Malmberg
'''
self.linux = False
self.darwin = False
if self.environ.getosfamily() == 'darwin':
self.darwin = True
if self.environ.getosfamily() == 'linux':
self.linux = True
self.initObjs()
self.setVars()
def initObjs(self):
'''initialize all required class objects
:returns: void
@author: Breen Malmberg
'''
if self.linux:
self.ph = Pkghelper(self.logger, self.environ)
if self.darwin:
pass
self.sh = ServiceHelper(self.environ, self.logger)
self.serviceTarget = ""
self.ch = CommandHelper(self.logger)
def setVars(self):
'''set all class variables depending on which
OS is currently running
:returns: void
@author: Breen Malmberg
@change: Breen Malmberg - 2/8/2017 - fixed a typo with the var name of the dict
for cupsd conf options;
'''
try:
# linux config
if self.linux:
self.configfileperms = '0640'
errorlog = "/var/log/cups/error_log"
logfileperms = '0644'
self.pkgname = "cups"
self.svcname = "cups"
accesslog = "/var/log/cups/access_log"
self.cupsfilesopts = {}
self.cupsfilesconf = ""
self.cupsdconf = ""
self.cupsdconfremopts = {}
# darwin config
if self.darwin:
accesslog = "/private/var/log/cups/access_log"
# a value of 'strict' causes issues connecting to printers on some mac systems
self.configfileperms = '0644'
logfileperms = '0644'
errorlog = "/private/var/log/cups/error_log"
self.svclongname = "/System/Library/LaunchDaemons/org.cups.cupsd.plist"
self.svcname = "org.cups.cupsd"
# common config
cupsdconflocs = [
'/etc/cups/cupsd.conf', '/private/etc/cups/cupsd.conf'
]
for loc in cupsdconflocs:
if os.path.exists(loc):
self.cupsdconf = loc
self.tmpcupsdconf = self.cupsdconf + ".stonixtmp"
cupsfileslocs = [
'/etc/cups/cups-files.conf',
'/private/etc/cups/cups-files.conf'
]
for loc in cupsfileslocs:
if os.path.exists(loc):
self.cupsfilesconf = loc
self.tmpcupsfilesconf = self.cupsfilesconf + ".stonixtmp"
# options for cups-files.conf
self.cupsfilesopts["ConfigFilePerm"] = self.configfileperms
self.cupsfilesopts["ErrorLog"] = errorlog
self.cupsfilesopts["LogFilePerm"] = logfileperms
# cupsd conf default configuration options
loglevel = "warn"
self.cupsdconfopts = {"LogLevel": loglevel}
self.cupsdconfopts["AccessLog"] = accesslog
self.cupsdconfopts["AccessLogLevel"] = "config"
# cupsd conf remove these options
if self.DisableGenericPort.getcurrvalue():
self.cupsdconfremopts = {"Port": "631"}
# this line added to prevent kvaconf trying to load files
# it can't access during __init__, if the program is being
# run in user mode
if self.environ.geteuid() == 0:
## create kveditor objects
if os.path.exists(self.cupsfilesconf):
kvtype1 = "conf"
path1 = self.cupsfilesconf
tmpPath1 = path1 + ".stonixtmp"
data1 = self.cupsfilesopts
intent1 = "present"
configType1 = "space"
self.KVcupsfiles = KVEditorStonix(self.statechglogger,
self.logger, kvtype1,
path1, tmpPath1, data1,
intent1, configType1)
if os.path.exists(self.cupsdconf):
kvtype2 = "conf"
path2 = self.cupsdconf
tmpPath2 = path2 + ".stonixtmp"
data2 = self.cupsdconfopts
intent2 = "present"
configType2 = "space"
self.KVcupsd = KVEditorStonix(self.statechglogger,
self.logger, kvtype2, path2,
tmpPath2, data2, intent2,
configType2)
# policy blocks
self.serveraccess = """# Restrict access to the server...
<Location />
Encryption Required
Order allow,deny
</Location>"""
self.adminpagesaccess = """# Restrict access to the admin pages...
<Location /admin>
Encryption Required
Order allow,deny
</Location>"""
self.configfilesaccess = """# Restrict access to configuration files...
<Location /admin/conf>
AuthType Default
Encryption IfRequested
Require user @SYSTEM
Order allow,deny
</Location>"""
self.logfileaccess = """# Restrict access to log files...
<Location /admin/log>
AuthType Default
Encryption IfRequested
Require user @SYSTEM
Order allow,deny
</Location>"""
self.defaultprinterpolicies = """# Set the default printer/job policies...
<Policy default>
# Job-related operations must be done by the owner or an administrator...
<Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
# All administration operations require an administrator to authenticate...
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
# All printer operations require a printer operator to authenticate...
<Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Accept-Jobs CUPS-Reject-Jobs>
AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
# Only the owner or an administrator can cancel or authenticate a job...
<Limit Cancel-Job CUPS-Authenticate-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
</Policy>"""
except Exception:
raise
def sanityCheck(self):
'''perform sanity check on the cups configuration files
:returns: sane
:rtype: bool
@author: Breen Malmberg
'''
sane = True
sanitycheck = "/usr/sbin/cupsd -t"
try:
self.ch.executeCommand(sanitycheck)
retcode = self.ch.getReturnCode()
output = self.ch.getOutput()
if retcode != 0:
sane = False
self.detailedresults += "\nError while running command: " + str(
sanitycheck)
for line in output:
if re.search("Bad|Missing|Incorrect|Error|Wrong", line,
re.IGNORECASE):
sane = False
self.detailedresults += "\n" + line
except Exception:
raise
return sane
def updateOpts(self):
'''update the kveditor values for the different CIs
based on their current user-specified values
:returns: void
@author: Breen Malmberg
@change: Breen Malmberg - 2/8/2017 - KVcupsdrem will now only be processed if
self.DisableGenericPort CI is True
'''
try:
if self.DisableCUPS.getcurrvalue():
self.PrintBrowseSubnet.updatecurrvalue(False)
if self.DisablePrintBrowsing.getcurrvalue():
self.cupsdconfopts["Browsing"] = "Off"
self.cupsdconfopts["BrowseAllow"] = "none"
self.cupsdconfopts["BrowseWebIF"] = "No"
if self.PrintBrowseSubnet.getcurrvalue():
self.cupsdconfopts["Browsing"] = "On"
self.cupsdconfopts["BrowseOrder"] = "allow,deny"
self.cupsdconfopts["BrowseDeny"] = "all"
self.cupsdconfopts[
"BrowseAllow"] = self.PrintBrowseSubnet.getcurrvalue()
if self.DisableGenericPort.getcurrvalue():
self.cupsdconfremopts["Port"] = "631"
if self.SetDefaultAuthType.getcurrvalue():
self.cupsdconfopts["DefaultAuthType"] = "Negotiate"
# don't try to create, or update, the kv object,
# if the file it's based on doesn't exist.
# this would cause tracebacks in kveditor
if os.path.exists(self.cupsfilesconf):
kvtype1 = "conf"
path1 = self.cupsfilesconf
tmpPath1 = path1 + ".stonixtmp"
data1 = self.cupsfilesopts
intent1 = "present"
configType1 = "space"
self.KVcupsfiles = KVEditorStonix(self.statechglogger,
self.logger, kvtype1, path1,
tmpPath1, data1, intent1,
configType1)
else:
self.logger.log(
LogPriority.DEBUG,
"Location of required configuration file cups-files.conf could not be determined"
)
if os.path.exists(self.cupsdconf):
kvtype2 = "conf"
path2 = self.cupsdconf
tmpPath2 = path2 + ".stonixtmp"
data2 = self.cupsdconfopts
intent2 = "present"
configType2 = "space"
self.KVcupsd = KVEditorStonix(self.statechglogger, self.logger,
kvtype2, path2, tmpPath2, data2,
intent2, configType2)
else:
self.logger.log(
LogPriority.DEBUG,
"Location of required configuration file cupsd.conf could not be determined"
)
except Exception:
raise
def report(self):
'''run report methods/actions appropriate for the current
OS and return compliancy status
:returns: self.compliant
:rtype: bool
@author: Breen Malmberg
'''
self.logger.log(LogPriority.DEBUG, "\n\nREPORT()\n\n")
# DEFAULTS
self.detailedresults = ""
self.compliant = True
badopts = [
"^HostNameLookups\s+Double", "^Sandboxing\s+strict",
"^FatalErrors\s+config"
]
badoptsfiles = [self.cupsdconf, self.cupsfilesconf]
try:
# check for bad config options in files
for f in badoptsfiles:
if os.path.exists(f):
fh = open(f, 'r')
contentlines = fh.readlines()
fh.close()
for line in contentlines:
for opt in badopts:
if re.search(opt, line, re.IGNORECASE):
self.compliant = False
# if these opts exist, then we don't want to do anything else
## except just remove them
if not self.compliant:
self.logger.log(
LogPriority.DEBUG,
"Bad configuration options found in cups config files. Will now remove them."
)
self.formatDetailedResults('report', self.compliant,
self.detailedresults)
return self.compliant
if self.linux:
if not self.ph.check(self.pkgname):
self.detailedresults += "\nCUPS not installed on this system. Nothing to secure."
self.formatDetailedResults('report', self.compliant,
self.detailedresults)
return self.compliant
# update kv objects with any new
# user-specified information
self.updateOpts()
if self.SecureCUPS.getcurrvalue():
# is cups secured?
if not self.reportSecure():
self.compliant = False
# make sure config syntax is correct
if not self.sanityCheck():
self.compliant = False
if self.DisableCUPS.getcurrvalue():
# is cups disabled?
if not self.reportDisabled():
self.compliant = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults('report', self.compliant,
self.detailedresults)
return self.compliant
def reportDisabled(self):
'''return True if cups is disabled
return False if cups is enabled
:returns: retval
:rtype: bool
@author: Breen Malmberg
'''
retval = True
try:
if self.linux:
if self.sh.auditService(self.svcname,
serviceTarget=self.serviceTarget):
retval = False
self.detailedresults += "\nThe " + str(
self.svcname) + " service is still configured to run"
elif self.darwin:
if self.sh.auditService(self.svclongname,
serviceTarget=self.svcname):
retval = False
self.detailedresults += "\nThe " + str(
self.svcname) + " service is still configured to run"
except Exception:
raise
return retval
def checkPolicyBlocks(self):
'''report on whether default policy blocks are currently set up
in cups configuration. Note that if these already exist, we
do not want to overwrite them as the local admin may have
them customised to their specific environment.
:returns: retval
:rtype: bool
@author: Breen Malmberg
'''
self.logger.log(LogPriority.DEBUG, "\n\nCHECKPOLICYBLOCKS()\n\n")
retval = True
rootfound = False
adminfound = False
adminconffound = False
defpolicyfound = False
try:
if os.path.exists(self.cupsdconf):
self.logger.log(
LogPriority.DEBUG,
"\n\nCUPSD CONF EXISTS. OPENING FILE AND READING CONTENTS...\n\n"
)
f = open(self.cupsdconf, 'r')
contentlines = f.readlines()
f.close()
self.logger.log(
LogPriority.DEBUG,
"\n\nCONTENTS READ. CHECKING FOR POLICY BLOCKS...\n\n")
for line in contentlines:
if re.search('\<Location \/\>', line, re.IGNORECASE):
rootfound = True
if re.search('\<Location \/admin\>', line, re.IGNORECASE):
adminfound = True
if re.search('\<Location \/admin\/conf\>', line,
re.IGNORECASE):
adminconffound = True
if re.search('\<Policy default\>', line, re.IGNORECASE):
defpolicyfound = True
else:
self.logger.log(
LogPriority.DEBUG,
"\n\ncupsd.conf file does not exist. Nothing to check...\n\n"
)
return retval
if not rootfound:
retval = False
self.detailedresults += "\nCUPS Root location policy not defined"
if not adminfound:
retval = False
self.detailedresults += "\nCUPS admin location policy not defined"
if not adminconffound:
retval = False
self.detailedresults += "\nCUPS admin/conf location policy not defined"
if not defpolicyfound:
retval = False
self.detailedresults += "\nCUPS Default Policy block not defined"
if retval:
self.logger.log(LogPriority.DEBUG,
"\n\nALL POLICY BLOCKS OK\n\n")
except Exception:
raise
return retval
def reportSecure(self):
'''run report actions common to all platforms
:returns: retval
:rtype: bool
@author: Breen Malmberg
@change: Breen Malmberg - 2/8/2017 - KVcupsdrem will now only be run if
self.DisableGenericPort CI is True
'''
self.logger.log(LogPriority.DEBUG, "\n\nREPORTSECURE()\n\n")
retval = True
try:
if self.SecureCUPS.getcurrvalue():
if os.path.exists(self.cupsdconf):
# Report on cupsd.conf change/add options
self.KVcupsd.setData(self.cupsdconfopts)
self.KVcupsd.setIntent("present")
self.KVcupsd.report()
# Report on cupsd.conf remove options
self.KVcupsd.setData(self.cupsdconfremopts)
self.KVcupsd.setIntent("notpresent")
self.KVcupsd.report()
if self.KVcupsd.fixables:
retval = False
self.detailedresults += "\nThe following configuration options, in " + str(
self.cupsdconf) + ", are incorrect:\n" + "\n".join(
self.KVcupsd.fixables)
if not self.checkPolicyBlocks():
retval = False
else:
pass
if os.path.exists(self.cupsfilesconf):
self.KVcupsfiles.report()
if self.KVcupsfiles.fixables:
retval = False
self.detailedresults += "\nThe following configuration options, in " + str(
self.cupsfilesconf
) + ", are incorrect:\n" + "\n".join(
self.KVcupsfiles.fixables)
else:
pass
else:
self.detailedresults += "\nNeither SecureCUPS nor DisableCUPS CI's was enabled. Nothing was done."
except Exception:
raise
return retval
def fix(self):
'''run fix methods/actions appropriate for the current
OS and return success status of fix
:returns: success
:rtype: bool
@author: Breen Malmberg
'''
# DEFAULTS
self.detailedresults = ""
success = True
self.iditerator = 0
badopts = [
"^HostNameLookups\s+Double", "^Sandboxing\s+strict",
"^FatalErrors\s+config"
]
badoptsfiles = [self.cupsdconf, self.cupsfilesconf]
foundbadopts = False
try:
# fix bad opts; do not record state change,
## so that a possible revert, afterward, will
## not revert back to the bad state
## this code is a one-off for a hotfix and
## should probably be discontinued in some future
## release at some point
for f in badoptsfiles:
contentlines = []
if os.path.exists(f):
fh = open(f, 'r')
contentlines = fh.readlines()
fh.close()
for line in contentlines:
for opt in badopts:
if re.search(opt, line, re.IGNORECASE):
foundbadopts = True
contentlines = [
c.replace(line, '\n') for c in contentlines
]
# finished building new contentlines; now write them for each file
fn = open(f, 'w')
fn.writelines(contentlines)
fn.close()
os.chmod(f, 0o644)
if foundbadopts:
# do not continue with rest of fix because that would save state for this fix run
self.logger.log(
LogPriority.DEBUG,
"Reloading cups service to read configuration changes...")
if self.darwin:
self.sh.reloadService(self.svclongname,
serviceTarget=self.svcname)
else:
self.sh.reloadService(self.svcname,
serviceTarget=self.serviceTarget)
self.logger.log(
LogPriority.DEBUG,
"Removed bad configuration options from cups config files. Exiting..."
)
self.formatDetailedResults('fix', success,
self.detailedresults)
return success
# Are any of the CIs enabled?
# If not, then exit, returning True
if not self.SecureCUPS.getcurrvalue() and \
not self.DisableCUPS.getcurrvalue():
self.detailedresults += "\nNo CI was enabled, so nothing was done."
self.logger.log(
LogPriority.DEBUG,
"SecureCUPS rule was run, but neither SecureCUPS, nor DisableCUPS CI's were enabled so nothing was done!"
)
self.formatDetailedResults('fix', success,
self.detailedresults)
return success
if self.linux and not self.ph.check("cups"):
self.detailedresults += "\nCUPS is not installed. Nothing to do."
self.formatDetailedResults('fix', success,
self.detailedresults)
return success
if self.SecureCUPS.getcurrvalue():
if not self.fixSecure():
success = False
if self.DisableCUPS.getcurrvalue():
if not self.disableCUPS():
success = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults('fix', success, self.detailedresults)
return success
def fixSecure(self):
'''run fix actions common to all platforms
:returns: retval
:rtype: bool
@author: Breen Malmberg
@change: Breen Malmberg - 2/8/2017 - added inline comments; changed the way KVCupsdrem
was being handled (will not be run if there are no options to remove; aka if
self.DisableGenericPort CI is False)
'''
retval = True
pdefaultfound = False
serveraccessfound = False
adminaccessfound = False
configaccessfound = False
logfileaccessfound = False
try:
if os.path.exists(self.cupsdconf):
# Fix cupsd.conf add/change/remove options
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.KVcupsd.setEventID(myid)
if self.KVcupsd.fix():
if not self.KVcupsd.commit():
self.detailedresults += "\nCommit failed for cupsd.conf"
self.logger.log(LogPriority.DEBUG,
"Commit failed for KVcupsd")
retval = False
# cups-files conf add/change options
if os.path.exists(self.cupsfilesconf):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.KVcupsfiles.setEventID(myid)
if self.KVcupsfiles.fix():
if not self.KVcupsfiles.commit():
self.detailedresults += "\nCommit failed for cups-files.conf"
self.logger.log(LogPriority.DEBUG,
"Commit failed for KVcupsfiles")
retval = False
# cupsdconf default policy blocks
# this portion cannot be handled by kveditor because of its
# xml style formatting
if os.path.exists(self.cupsdconf):
if self.SetupDefaultPolicyBlocks.getcurrvalue():
f = open(self.cupsdconf, 'r')
contentlines = f.readlines()
f.close()
for line in contentlines:
if re.search("\<Location \/\>", line, re.IGNORECASE):
serveraccessfound = True
for line in contentlines:
if re.search("\<Location \/admin\>", line,
re.IGNORECASE):
adminaccessfound = True
for line in contentlines:
if re.search("\<Location \/admin\/conf\>", line,
re.IGNORECASE):
configaccessfound = True
for line in contentlines:
if re.search("\<Location \/admin\/log\>", line,
re.IGNORECASE):
logfileaccessfound = True
for line in contentlines:
if re.search("\<Policy default\>", line,
re.IGNORECASE):
pdefaultfound = True
if not serveraccessfound:
contentlines.append("\n" + self.serveraccess + "\n")
self.logger.log(
LogPriority.DEBUG,
"\n\nroot access policy block not found. adding it...\n\n"
)
if not adminaccessfound:
contentlines.append("\n" + self.adminpagesaccess +
"\n")
self.logger.log(
LogPriority.DEBUG,
"\n\nadmin access policy block not found. adding it...\n\n"
)
if not configaccessfound:
contentlines.append("\n" + self.configfilesaccess +
"\n")
self.logger.log(
LogPriority.DEBUG,
"\n\nconfig access policy block not found. adding it...\n\n"
)
if not logfileaccessfound:
contentlines.append("\n" + self.logfileaccess + "\n")
self.logger.log(
LogPriority.DEBUG,
"\n\nlog file access policy block not found. adding it...\n\n"
)
if not pdefaultfound:
contentlines.append("\n" +
self.defaultprinterpolicies + "\n")
self.logger.log(
LogPriority.DEBUG,
"\n\ndefault policy block not found. adding it...\n\n"
)
tf = open(self.tmpcupsdconf, 'w')
tf.writelines(contentlines)
tf.close()
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filename": self.cupsdconf}
self.statechglogger.recordfilechange(
self.cupsdconf, self.tmpcupsdconf, myid)
self.statechglogger.recordchgevent(myid, event)
self.logger.log(
LogPriority.DEBUG, "\n\nwriting changes to " +
str(self.cupsdconf) + " file...\n\n")
os.rename(self.tmpcupsdconf, self.cupsdconf)
self.logger.log(
LogPriority.DEBUG,
"\n\nsetting permissions and ownership for " +
str(self.cupsdconf) + " file...\n\n")
os.chown(self.cupsdconf, 0, 0)
if self.linux:
os.chmod(self.cupsdconf, 0o640)
elif self.darwin:
os.chmod(self.cupsdconf, 0o644)
if not self.reloadCUPS():
retval = False
except Exception:
raise
return retval
def reloadCUPS(self):
'''reload the cups service to read the new configurations
:returns: retval
:rtype: bool
@author: Breen Malmberg
'''
retval = True
try:
# do not attempt to reload the service
# if the rule is set to disable it
if self.DisableCUPS.getcurrvalue():
return retval
if self.linux:
if not self.sh.reloadService(self.svcname,
serviceTarget=self.serviceTarget):
retval = False
self.detailedresults += "|nThere was a problem reloading the " + str(
self.svcname) + " service"
elif self.darwin:
if not self.sh.reloadService(self.svclongname,
serviceTarget=self.svcname):
retval = False
self.detailedresults += "|nThere was a problem reloading the " + str(
self.svcname) + " service"
except Exception:
raise
return retval
def disableCUPS(self):
'''disable the cups service
:returns: retval
:rtype: bool
@author: Breen Malmberg
'''
retval = True
try:
if self.linux:
if not self.sh.disableService(
self.svcname, serviceTarget=self.serviceTarget):
retval = False
self.detailedresults += "\nThere was a problem disabling the " + str(
self.svcname) + " service"
elif self.darwin:
if not self.sh.disableService(self.svclongname,
serviceTarget=self.svcname):
retval = False
self.detailedresults += "\nThere was a problem disabling the " + str(
self.svcname) + " service"
except Exception:
raise
return retval
class DisableCloudServices(RuleKVEditor):
'''This method runs all the report methods for RuleKVEditors defined in the
dictionary
@author: ekkehard j. koch
@change: 07/23/2014 added ubuntu methods and applicability; fixed typos in
doc strings; added class doc string; implemented pkghelper and
iterate methods - bemalmbe
'''
###############################################################################
def __init__(self, config, environ, logdispatcher, statechglogger):
RuleKVEditor.__init__(self, config, environ, logdispatcher,
statechglogger)
self.rulenumber = 159
self.rulename = 'DisableCloudServices'
self.formatDetailedResults("initialize")
self.mandatory = True
self.rootrequired = True
self.logger = self.logdispatch
self.guidance = []
self.applicable = {'type': 'white',
'os': {'Mac OS X': ['10.15', 'r', '10.15.10'],
'Ubuntu': ['12.04', '+']}}
self.ch = CommandHelper(self.logdispatch)
# init CIs
datatype = 'bool'
key = 'DISABLECLOUDSERVICES'
instructions = "To prevent cloud services from being disabled, " + \
"set the value of DisableCloudServices to False."
default = True
self.DisableCloudServices = self.initCi(datatype, key, instructions,
default)
if self.environ.getosfamily() == 'darwin':
self.addKVEditor("iCloudSaveNewDocumentsToDisk",
"defaults",
"NSGlobalDomain",
"",
{"NSDocumentSaveNewDocumentsToCloud":
["0", "-bool no"]},
"present",
"",
"Save new documents to disk not to iCloud.",
None,
False,
{"NSDocumentSaveNewDocumentsToCloud":
["1", "-bool yes"]})
else:
self.debianpkglist = ['unity-webapps-common',
'unity-lens-shopping']
self.sethelptext()
def report(self):
'''choose which report method to run based on OS archetype'''
self.detailedresults = ""
if self.environ.getosfamily() == 'darwin':
RuleKVEditor.report(self, False)
elif re.search('Ubuntu', self.environ.getostype()):
retval = self.reportUbuntu()
return retval
###############################################################################
def reportUbuntu(self):
'''if debian, check for unity-lens-shopping and unity-webapps-common
cloud service packages
'''
# defaults
self.compliant = True
self.detailedresults = ""
try:
self.ph = Pkghelper(self.logdispatch, self.environ)
for package in self.debianpkglist:
if self.ph.check(package):
self.compliant = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception as err:
self.rulesuccess = False
self.detailedresults = self.detailedresults + "\n" + str(err) + \
" - " + str(traceback.format_exc())
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
###############################################################################
def fix(self):
'''choose which fix method to run, based on OS archetype'''
self.detailedresults = ""
if self.DisableCloudServices.getcurrvalue():
if self.environ.getosfamily() == 'darwin':
RuleKVEditor.fix(self, False)
elif re.search('Ubuntu', self.environ.getostype()):
self.fixUbuntu()
###############################################################################
def fixUbuntu(self):
'''if debian, disable unity-lens-shopping and unity-webapps-common
cloud service packages, if they are installed
'''
# defaults
self.iditerator = 0
try:
for package in self.debianpkglist:
if self.ph.check(package):
self.ph.remove(package)
cmd = self.ph.getInstall() + package
event = {'eventtype': 'commandstring',
'command': cmd}
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.statechglogger.recordchgevent(myid, event)
except (KeyboardInterrupt, SystemExit):
raise
except Exception as err:
self.rulesuccess = False
self.detailedresults += "\n" + str(err) + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class ForceIdleLogout(Rule):
'''The ForceIdleLogout class attempts to configure the system to log out users
after long periods of inactivity. This control reinforces the protection
offered by the screen lock by terminating long idle sessions. Note that
the guidance for this control, AC-2(5) from 800-53, seems to be written
to the capabilities of Microsoft's active directory product which has the
ability to establish work schedules in the directory service and limit
logons to those time windows. *NIX systems typically do not have that type
of tooling so we rely on a long idle time.
'''
def __init__(self, config, environ, logger, statechglogger):
'''
Constructor
'''
Rule.__init__(self, config, environ, logger, statechglogger)
self.config = config
self.environ = environ
self.logger = logger
self.statechglogger = statechglogger
self.rulenumber = 23
self.rulename = 'ForceIdleLogout'
self.formatDetailedResults("initialize")
self.mandatory = True
self.helptext = '''The ForceIdleLogout rule will configure \
the system to log out GUI sessions that have been idle for a long time. This \
helps prevent take over and illicit use of idle sessions and frees system \
resources. Because some environments may rely on the capability of interactive \
sessions to execute long running jobs this control is optional and will need \
to be enabled below for environments that require it. The idle time before \
logout may also be customized. N.B. Please note that most Linux window \
managers will not save work in progress when the logout occurs.
'''
self.rootrequired = True
self.applicable = {
'type': 'white',
'family': ['linux'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
},
'fisma': 'high'
}
self.cmdhelper = CommandHelper(self.logger)
self.guidance = ['NIST 800-53 AC-2(5)']
myos = self.environ.getostype().lower()
self.gconf = ""
if re.search("red hat", myos) or re.search("centos", myos):
self.gconf = "GConf2"
else:
self.gconf = "gconf2"
datatype = 'bool'
key = 'FORCEIDLELOGOUT'
instructions = '''To disable this rule set the value of \
FORCEIDLELOGOUT to False.'''
default = False
self.filci = self.initCi(datatype, key, instructions, default)
datatype2 = 'int'
key2 = 'FORCEIDLELOGOUTTIMEOUT'
instructions2 = '''To customize the timeout period set the \
FORCEIDLELOGOUTTIMEOUT to the desired duration in minutes.'''
default2 = 240
self.timeoutci = self.initCi(datatype2, key2, instructions2, default2)
self.ph = Pkghelper(self.logger, self.environ)
self.gnomesettingpath = "/etc/dconf/db/local.d/00-autologout"
self.gnomelockpath = "/etc/dconf/db/local.d/locks/autologout"
self.undotimeout = ""
self.undoforcelogout = ""
self.kdesddm = ""
self.gnomeInstalled, self.kdeInstalled = False, False
def report(self):
'''Report on whether the Idle Logout settings are correct.
:returns: bool
@author: D.Kennel
'''
try:
compliant = True
self.detailedresults = ""
try:
self.seconds = self.timeoutci.getcurrvalue() * 60
except (TypeError):
self.detailedresults += "FORCEIDLELOGOUTTIMEOUT value is not " + \
"valid!\n"
return False
if self.environ.osfamily == 'linux':
self.kdesddm = self.ph.check("sddm")
if self.ph.check("gdm") or self.ph.check("gdm3"):
self.gnomeInstalled = True
if not self.chkgnome():
self.detailedresults += "Gnome GUI environment " + \
"does not appear to be correctly configured " + \
"for automatic logout of idle sessions. This " + \
"guidance is optional in STONIX, check local " + \
"policy to see if it is required.\n"
compliant = False
else:
self.detailedresults += "Gnome GUI environment " + \
"appears to be correctly configured for " + \
"automatic logout of idle sessions.\n"
else:
self.gnomeInstalled = False
self.detailedresults += "Gnome not installed. No need to configure for gnome\n"
if self.ph.check("kdm") or self.ph.check("kde-workspace") or \
self.ph.check("sddm") or self.ph.check("patterns-kde-kde_yast"):
self.kdeInstalled = True
if not self.chkkde():
self.detailedresults += "KDE GUI environment " + \
"does not appear to be correctly configured " + \
"for automatic logout of idle sessions. This " + \
"guidance is optional in STONIX, check local " + \
"policy to see if it is required.\n"
compliant = False
else:
self.detailedresults += "KDE GUI environment " + \
"appears to be correctly configured for " + \
"automatic logout of idle sessions.\n"
else:
self.kdeInstalled = False
self.detailedresults += "KDE not installed. No need to configure for kde\n"
elif self.environ.getosfamily() == 'darwin':
if not self.chkosx():
self.detailedresults += "Idle logout value is not set to " + \
str(self.timeoutci.getcurrvalue()) + "\n"
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults = 'ForceIdleLogout: '
self.detailedresults = self.detailedresults + \
traceback.format_exc()
self.rulesuccess = False
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def chkgnome(self):
'''Check that the GNOME 3 auto logout settings are set correctly
:returns: boot - true if settings are set to logout
@author: D. Kennel
'''
if not self.environ.geteuid() == 0:
# Short circuit for user mode run
# manipulating the GNOME settings requires privilege
return True
compliant = True
self.timeoutwrong = False
self.logoutwrong = False
havedconffile = False
havelockfile = False
havetimeout = False
havetimeoutlock = False
havelogout = False
havelogoutlock = False
if os.path.exists("/usr/bin/gsettings"):
if os.path.exists('/etc/dconf/db/local.d'):
if os.path.exists(self.gnomesettingpath):
havedconffile = True
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3',
'Found Gnome settings file'
])
contents = readFile(self.gnomesettingpath, self.logger)
for line in contents:
if re.search(
'sleep-inactive-ac-timeout=' +
str(self.seconds), line):
havetimeout = True
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3',
'Found Gnome timeout'
])
if re.search("sleep-inactive-ac-type='logout'", line):
havelogout = True
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3',
'Found Gnome logout'
])
if os.path.exists(self.gnomelockpath):
havelockfile = True
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3', 'Found Gnome lock file'
])
contents = readFile(self.gnomelockpath, self.logger)
for line in contents:
if re.search(
'/org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-timeout',
line):
havetimeoutlock = True
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3',
'Found Gnome timeout lock'
])
if re.search(
"/org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-type",
line):
havelogoutlock = True
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3',
'Found Gnome logout lock'
])
if not havedconffile:
self.detailedresults += "GNOME 3 autologout settings " + \
"file not found at: " + \
"/etc/dconf/db/local.d/00-autologout\n"
compliant = False
if not havetimeout:
self.detailedresults += "GNOME 3 autologout timeout " + \
"not found or does not match expected value. Set " + \
"sleep-inactive-ac-timeout=" + str(self.seconds) + \
" in /etc/dconf/db/local.d/00-autologout\n"
compliant = False
if not havelogout:
self.detailedresults += "GNOME 3 autologout logout " + \
"not found. Set sleep-inactive-ac-type='logout' in " + \
"/etc/dconf/db/local.d/00-autologout\n"
compliant = False
if not havelockfile:
self.detailedresults += "GNOME 3 autologout lock " + \
"file not found at: " + \
"/etc/dconf/db/local.d/locks/autologout\n"
compliant = False
if not havetimeoutlock:
self.detailedresults += "GNOME 3 autologout timeout " + \
"lock not found. Set /org/gnome/settings-daemon/" + \
"plugins/power/sleep-inactive-ac-timeout in " + \
"/etc/dconf/db/local.d/locks/autologout\n"
compliant = False
if not havelogoutlock:
self.detailedresults += "GNOME 3 autologout lock not " + \
"found. Set /org/gnome/settings-daemon/plugins/" + \
"power/sleep-inactive-ac-type in " + \
"/etc/dconf/db/local.d/locks/autologout\n"
compliant = False
if self.ph.check(self.gconf):
self.logdispatch.log(
LogPriority.DEBUG,
['ForceIdleLogout.__chkgnome3', 'Checking GNOME with gconf'])
prefix = '/usr/bin/gconftool-2 --direct --config-source ' + \
'xml:readwrite:/etc/gconf/gconf.xml.mandatory --get '
idletimecmd = prefix + '/desktop/gnome/session/max_idle_time'
idleactcmd = prefix + '/desktop/gnome/session/max_idle_action'
self.cmdhelper.executeCommand(idletimecmd)
output = self.cmdhelper.getOutput()
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3',
'Value of idle time ' + str(output)
])
if output:
try:
if int(output[0].strip()) != self.seconds:
compliant = False
self.timeoutwrong = True
if re.search("No value set", output[0]):
self.detailedresults += "GNOME autologout time not found\n"
self.undotimeout = "unset"
elif isinstance(output[0], int):
self.detailedresults += "GNOME autologout time not correct.\n"
self.undotimeout = output[0]
else:
self.detailedresults += "GNOME autologout time not correct\n"
self.undotimeout = "''"
except (ValueError):
# value not found message
pass
self.cmdhelper.executeCommand(idleactcmd)
output2 = self.cmdhelper.getOutput()
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkgnome3',
'Value of idle action ' + str(output2)
])
if output2:
if not re.search('forced-logout', output2[0]):
compliant = False
self.logoutwrong = True
if re.search("No value set", output2[0]):
self.detailedresults += "GNOME 3 autologout settings " + \
"not found.\n"
self.undoforcelogout = "unset"
else:
self.detailedresults += "GNOME 3 autologout settings " + \
"not correct.\n"
self.undoforcelogout = str(output2[0])
return compliant
def chkkde(self):
'''Check that settings are correct for KDE 4 auto logout. Note that this
setting lives in each user's home folder and is the reason this rule
has root & non-root components. With root perms we can work on homes
that are on local storage but user perms are required for NFS mounted
home directories.
:returns: bool - true if settings are set to logout for inspected users
@author: D. Kennel
'''
debug = "Inside chkkde method"
self.logger.log(LogPriority.DEBUG, debug)
self.kdefix = {}
if self.kdesddm:
self.kdecheck = ".config/kdeglobals"
self.rcpath = ".config/kscreenlockerrc"
self.kdeprops = {"ScreenSaver": {"Timeout": str(self.seconds)}}
else:
self.kdecheck = ".kde"
self.rcpath = ".kde/share/config/kscreensaverrc"
self.kdeprops = {
"ScreenSaver": {
"AutoLogout": "true",
"AutoLogoutTimeout": str(self.seconds)
}
}
if self.environ.geteuid() == 0:
contents = readFile("/etc/passwd", self.logger)
for line in contents:
username = ""
homepath = ""
temp = line.split(':')
try:
username = temp[0]
homepath = temp[5]
except (IndexError):
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkkde4',
'IndexError processing ' + str(username)
])
continue
kdeparent = os.path.join(homepath, self.kdecheck)
kdefile = os.path.join(homepath, self.rcpath)
if not os.path.exists(kdeparent):
# User does not use KDE
continue
elif not os.path.exists(kdefile):
#User uses kde but doesn't have the necessary config file
self.kdefix[username] = homepath
self.detailedresults += kdefile + " not found for " + \
str(username) + "\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
continue
elif not self.searchFile(kdefile):
self.detailedresults += "Did not find " + \
"required contents " + "in " + username + \
"'s " + kdefile + "\n"
self.kdefix[username] = homepath
if self.kdefix:
self.detailedresults += "The following users don't " + \
"have kde properly configured for " + \
"auto logout:\n"
for user in self.kdefix:
self.detailedresults += user + "\n"
return False
else:
return True
else:
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__chkkde4',
'Non root user context starting check'
])
kdeparent = os.path.join(self.environ.geteuidhome(), self.kdecheck)
kdefile = os.path.join(kdeparent, self.rcpath)
if not os.path.exists(kdeparent):
# User does not use KDE
self.detailedresults += "Current user doesn't use kde. " + \
"No need to configure.\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
return True
else:
if not os.path.exists(kdefile):
self.detailedresults += "Your " + kdefile + \
"file does not exist.\n"
return False
elif not self.searchFile(kdefile):
self.detailedresults += "Did not find " + \
"required contents in " + kdefile + "\n"
return False
else:
return True
def chkosx(self):
''' '''
globalprefs = "/Library/Preferences/.GlobalPreferences.plist"
globalprefstemp = globalprefs + ".stonixtmp"
timeout = self.timeoutci.getcurrvalue() * 60
data = {
"com.apple.autologout.AutoLogOutDelay":
[str(timeout), "-int " + str(timeout)]
}
self.editor = KVEditorStonix(self.statechglogger, self.logger,
"defaults", globalprefs, globalprefstemp,
data, "present")
return self.editor.report()
def fix(self):
'''Configure the system to enforce logout of idle GUI sessions
@author: D. Kennel
'''
try:
if not self.filci.getcurrvalue():
self.detailedresults += "Rule not enabled so nothing was done\n"
self.logger.log(LogPriority.DEBUG,
'Rule was not enabled, so nothing was done')
return
self.detailedresults = ""
success = True
if self.environ.geteuid() == 0:
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(
self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if self.environ.getosfamily() == "linux":
if self.gnomeInstalled:
if not self.fixgnome():
success = False
if self.kdeInstalled:
if not self.fixkde():
success = False
elif self.environ.getosfamily() == "darwin":
success = self.fixosx()
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixgnome(self):
'''Configure GNOME 3 for automatic logout.
@author: d.kennel
'''
if self.environ.geteuid() != 0:
debug = "Configuring gnome requires root privileges"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += "Configuring gnome requires root " + \
"privileges\n"
return False
success = True
createddir = False
debug = ""
if os.path.exists("/usr/bin/gsettings"):
if not os.path.exists('/etc/dconf/db/local.d'):
if not os.makedirs('/etc/dconf/db/local.d/'):
success = False
debug = "Unable to create the /etc/dconf/db/local.d/ directory"
self.detailedresults += "Unable to create the /etc/dconf/db/local.d/ directory"
self.logger.log(LogPriority.DEBUG, debug)
else:
createddir = True
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "creation",
"filepath": "/etc/dconf/db/local.d"
}
self.statechglogger.recordchgevent(myid, event)
if os.path.exists('/etc/dconf/db/local.d'):
created1, created2 = False, False
self.logdispatch.log(LogPriority.DEBUG, [
'ForceIdleLogout.__fixgnome3', 'Working GNOME with dconf'
])
try:
seconds = self.timeoutci.getcurrvalue() * 60
except (TypeError):
self.detailedresults += "FORCEIDLELOGOUTTIMEOUT value is " + \
"not valid!\n"
self.rulesuccess = False
return False
if not os.path.exists(self.gnomesettingpath):
if not createFile(self.gnomesettingpath, self.logger):
success = False
self.detailedresults += "Unable to create " + self.gnomesettingpath + " file\n"
else:
created1 = True
if not createddir:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "creation",
"filepath": self.gnomesettingpath
}
self.statechglogger.recordchgevent(myid, event)
if os.path.exists(self.gnomesettingpath):
gdirectives = {
"org.gnome.settings-daemon.plugins.power": {
"sleep-inactive-ac-type": "'logout'",
'sleep-inactive-ac-timeout': str(seconds)
}
}
geditor = KVEditorStonix(self.statechglogger, self.logger,
"tagconf", self.gnomesettingpath,
self.gnomesettingpath + '.tmp',
gdirectives, "present",
"closedeq")
geditor.report()
if geditor.fixables:
if geditor.fix():
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
geditor.setEventID(myid)
if geditor.commit():
debug = self.gnomesettingpath + "'s contents have been " + \
"corrected\n"
self.logger.log(LogPriority.DEBUG, debug)
os.chown(self.gnomesettingpath, 0, 0)
os.chmod(self.gnomesettingpath, 0o644)
resetsecon(self.gnomesettingpath)
else:
debug = "kveditor commit not successful\n"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += self.gnomesettingpath + \
" properties could not be set\n"
succeess = False
else:
debug = "kveditor fix not successful\n"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += self.gnomesettingpath + \
" properties could not be set\n"
succeess = False
if not checkPerms(self.gnomesettingpath, [0, 0, 0o644],
self.logger):
if not created1:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.gnomesettingpath,
[0, 0, 0o644], self.logger,
self.statechglogger, myid):
self.detailedresults += "Unable to set permissions on " + \
self.gnomesettingpath + " file\n"
success = False
else:
if not setPerms(self.gnomesettingpath,
[0, 0, 0o644], self.logger):
self.detailedresults += "Unable to set permissions on " + \
self.gnomesettingpath + " file\n"
success = False
havetimeoutlock = False
havelogoutlock = False
lockdata = []
if not os.path.exists(self.gnomelockpath):
if not createFile(self.gnomelockpath, self.logger):
success = False
self.detailedresults += "Unable to create " + self.gnomelockpath + " file\n"
else:
created2 = True
if not createddir:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "creation",
"filepath": self.gnomelockpath
}
self.statechglogger.recordchgevent(myid, event)
if os.path.exists(self.gnomelockpath):
contents = readFile(self.gnomelockpath, self.logger)
for line in contents:
if re.search(
'/org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-timeout',
line):
havetimeoutlock = True
if re.search(
"/org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-type",
line):
havelogoutlock = True
if not havetimeoutlock:
lockdata.append(
'/org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-timeout\n'
)
if not havelogoutlock:
lockdata.append(
"/org/gnome/settings-daemon/plugins/power/sleep-inactive-ac-type\n"
)
tempfile = self.gnomelockpath + ".tmp"
if writeFile(tempfile, lockdata, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "conf",
"filepath": self.gnomelockpath
}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(
self.gnomelockpath, tempfile, myid)
os.rename(tempfile, self.gnomelockpath)
os.chown(self.gnomelockpath, 0, 0)
os.chmod(self.gnomelockpath, 0o644)
resetsecon(self.gnomelockpath)
else:
self.detailedresults += "Unable to write contents to " + \
self.gnomelockpath
success = False
if not checkPerms(self.gnomelockpath, [0, 0, 0o644],
self.logger):
if not created2:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.gnomelockpath, [0, 0, 0o644],
self.logger, self.statechglogger,
myid):
self.detailedresults += "Unable to set permissions on " + \
self.gnomelockpath + " file\n"
success = False
else:
if not setPerms(self.gnomelockpath, [0, 0, 0o644],
self.logger):
self.detailedresults += "Unable to set permissions on " + \
self.gnomelockpath + " file\n"
success = False
if self.ph.check(self.gconf):
self.logdispatch.log(
LogPriority.DEBUG,
['ForceIdleLogout.__fixgnome3', 'Working GNOME with gconf'])
undocmd = ""
undoprefix = '/usr/bin/gconftool-2 --direct --config-source ' + \
'xml:readwrite:/etc/gconf/gconf.xml.mandatory '
setprefix = '/usr/bin/gconftool-2 --direct --config-source ' + \
'xml:readwrite:/etc/gconf/gconf.xml.mandatory --set '
settime = setprefix + \
'--type integer /desktop/gnome/session/max_idle_time ' + \
str(self.timeoutci.getcurrvalue())
setlogout = setprefix + \
'--type string /desktop/gnome/session/' + \
'max_idle_action forced-logout'
if self.timeoutwrong:
self.cmdhelper.executeCommand(settime)
retcode = self.cmdhelper.getReturnCode()
if retcode != 0:
errstr = self.cmdhelper.getErrorString()
self.logger.log(LogPriority.DEBUG, errstr)
self.detailedresults += 'Failed to configure idle time limit option.\n'
success = False
else:
if self.undotimeout == "unset":
undocmd = undoprefix + '--unset /desktop/gnome/session/max_idle_time'
else:
undocmd = setprefix + '--type integer /desktop/gnome/session/max_idle_time ' + \
self.undotimeout
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "command", "command": undocmd}
self.statechglogger.recordchgevent(myid, event)
self.detailedresults += 'Maximum idle time limit configured successfully.\n'
if self.logoutwrong:
self.cmdhelper.executeCommand(setlogout)
retcode = self.cmdhelper.getReturnCode()
if retcode != 0:
errstr = self.cmdhelper.getErrorString()
self.logger.log(LogPriority.DEBUG, errstr)
self.detailedresults += 'Failed to configure idle forced-logout option.\n'
success = False
else:
if self.undoforcelogout == "unset":
undocmd = undoprefix + '--unset /desktop/gnome/session/max_idle_action'
else:
undocmd = setprefix + '--type integer /desktop/gnome/session/max_idle_action ' + \
self.undoforcelogout
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "command", "command": undocmd}
self.statechglogger.recordchgevent(myid, event)
self.detailedresults += 'Idle forced-logout option configured successfully.\n'
return success
def fixkde(self):
'''Configure KDE 4 for automatic logout.
@author: d.kennel
'''
success = True
if self.environ.geteuid() == 0:
self.logdispatch.log(
LogPriority.DEBUG,
['ForceIdleLogout.__fixkde4', 'Root context starting loop'])
if not self.kdefix:
return True
for user in self.kdefix:
homepath = self.kdefix[user]
kdefile = os.path.join(homepath, self.rcpath)
if not self.correctFile(kdefile, user):
success = False
self.detailedresults += "Unable to configure " + \
kdefile + "\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
else:
homepath = self.environ.geteuidhome()
kdefile = os.path.join(homepath, self.rcpath)
uidnum = int(self.environ.geteuid())
passwddata = readFile("/etc/passwd", self.logger)
found = False
for user in passwddata:
user = user.split(':')
try:
puidnum = int(user[2])
pdefgid = int(user[3])
except (IndexError):
continue
if puidnum == uidnum:
homepath = user[5]
found = True
if not found:
self.detailedresults += "Could not obtain your user id.\n" + \
"Stonix couldn't proceed with correcting " + kdefile + "\n"
success = False
elif not self.correctFile(kdefile, homepath):
self.detailedresults += "Stonix couldn't correct the contents " + \
" of " + kdefile + "\n"
success = False
return success
def fixosx(self):
if not self.editor.report():
if self.editor.fix():
if self.editor.commit():
self.rulesuccess = True
else:
self.detailedresults += "KVEditor could not commit " + \
"correct configuration\n"
self.rulesuccess = False
else:
self.detailedresults += "KVEditor could not fix configuration\n"
self.rulesuccess = False
def searchFile(self, filehandle):
'''temporary method to separate the code to find directives from the
rest of the code. Will put back all in one method eventually
@author: dwalker
:param filehandle: string
:returns: bool
'''
self.editor = ""
kvt = "tagconf"
intent = "present"
tpath = filehandle + ".tmp"
conftype = "closedeq"
self.editor = KVEditorStonix(self.statechglogger, self.logger, kvt,
filehandle, tpath, self.kdeprops, intent,
conftype)
if not self.editor.report():
return False
else:
return True
def correctFile(self, kfile, user):
'''separate method to find the correct contents of each file passed in
as a parameter.
@author: dwalker
:param filehandle: string
:param kfile:
:param user:
:returns: bool
'''
created = False
success = True
self.editor = ""
debug = ""
if not os.path.exists(kfile):
if not createFile(kfile, self.logger):
self.detailedresults += "Unable to create " + kfile + \
" file for the user\n"
self.logger.log(LogPriority.DEBUG, self.detailedresults)
return False
created = True
if self.environ.geteuid() == 0:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": kfile}
self.statechglogger.recordchgevent(myid, event)
if not self.searchFile(kfile):
if self.editor.fixables:
if self.environ.geteuid() == 0 and not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor.setEventID(myid)
if not self.editor.fix():
debug = "Kveditor fix is failing for file " + \
kfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += "Unable to correct contents for " + \
kfile + "\n"
return False
elif not self.editor.commit():
debug = "Kveditor commit is failing for file " + \
kfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += "Unable to correct contents for " + \
kfile + "\n"
return False
uid = getpwnam(user)[2]
gid = getpwnam(user)[3]
os.chmod(kfile, 0o600)
os.chown(kfile, uid, gid)
resetsecon(kfile)
return success
class ConfigureProcessAccounting(Rule):
'''Class docs'''
def __init__(self, config, environ, logger, statechglogger):
"""
@param config:
@param environ:
@param logger:
@param statechglogger:
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 97
self.rulename = "ConfigureProcessAccounting"
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.guidance = ["CCE-RHEL7-CCE-TBD 3.2.15"]
self.applicable = {"type": "white", "family": ["linux"]}
# Configuration item instantiation
datatype = "bool"
key = "CONFIGUREPROCESSACCOUNTING"
instructions = "To disable this rule, set the value of " + \
"CONFIGUREPROCESSACCOUNTING to False."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
self.ph = Pkghelper(self.logger, self.environ)
self.sh = ServiceHelper(self.environ, self.logger)
def report(self):
'''
:returns: self.compliant
:rtype: bool
@author: Eric Ball
@change: Breen Malmberg - 04/09/2019 - doc string added; method refactor;
added debug logging
'''
self.compliant = True
self.detailedresults = ""
self.packages = ["psacct", "acct"]
try:
if not any(self.ph.check(p) for p in self.packages):
self.compliant = False
self.detailedresults += "\nsystem accounting package is not installed"
if not any(self.sh.auditService(p) for p in self.packages):
self.compliant = False
self.detailedresults += "\nsystem accounting service is not enabled"
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
'''
:returns: self.rulesuccess
:rtype: bool
@author: Eric Ball
@change: Breen Malmberg - 04/09/2019 - doc string added; method refactor;
added debug logging
'''
self.rulesuccess = True
self.detailedresults = ""
self.iditerator = 0
try:
if not self.ci.getcurrvalue():
self.rulesuccess = False
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
for p in self.packages:
if self.ph.install(p):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "pkghelper",
"pkgname": p,
"startstate": "removed",
"endstate": "installed"
}
self.statechglogger.recordchgevent(myid, event)
if self.iditerator == 0:
self.rulesuccess = False
self.detailedresults += "\nFailed to install system accounting package"
for p in self.packages:
if self.ph.check(p):
self.sh.enableService(p)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "servicehelper",
"servicename": p,
"startstate": "disabled",
"endstate": "enabled"
}
self.statechglogger.recordchgevent(myid, event)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class DisableRemoveableStorage(Rule):
'''Disable removeable storage. This rule is optional, and disables USB, thunderbolt and firewire
storage devices from accessing, or being accessed, by the system.
'''
def __init__(self, config, environ, logger, statechglogger):
'''
@param config:
@param environ:
@param logger:
@param statechglogger:
'''
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 29
self.rulename = 'DisableRemoveableStorage'
self.mandatory = False
self.formatDetailedResults("initialize")
self.guidance = ['NSA 2.2.2.2, CIS, NSA(2.2.2.2), cce-4006-3,4173-1']
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
},
'fisma': 'high'
}
# configuration item instantiation
datatype = "bool"
key = "DISABLEREMOVEABLESTORAGE"
instructions = "To disable removeable storage devices on this system, set the value of DISABLEREMOVEABLESTORAGE to True"
default = False
self.storageci = self.initCi(datatype, key, instructions, default)
#global variables
self.grubfiles = [
"/boot/grub2/grub.cfg", "/boot/grub/grub.cfg",
"/boot/grub/grub.conf"
]
self.pcmcialist = ['pcmcia-cs', 'kernel-pcmcia-cs', 'pcmciautils']
self.pkgremovedlist = []
self.iditerator = 0
self.created = False
self.daemonpath = os.path.abspath(
os.path.join(os.path.dirname(
sys.argv[0]))) + "/stonix_resources/disablestorage.py"
self.sethelptext()
self.grubperms = ""
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
def report(self):
'''report the current rule-compliance status of this system. update
self.rulesuccess if method does not succeed. self.compliant if
rule succeeds and reports true.
:returns: self.compliant
:rtype: bool
@author: Breen Malmberg
@change: dwalker - implementing kveditor and completely revamped rule
logic. added event deletion at the beginning of the fix
@change: dwalker 8/13/2014 changed name of rule to
DisableRemoveableStorage and rule now supports disabling other
ports such thunderbolt and firewire
'''
try:
# defaults
self.detailedresults = ""
if self.environ.getostype() == "Mac OS X":
compliant = self.reportMac()
else:
compliant = self.reportLinux()
self.compliant = compliant
except OSError:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def reportLinux(self):
'''sub method for linux portion of compliance reporting
@author: dwalker
:returns: compliant
:rtype: boolean
'''
compliant = True
lsmodcmd = ""
# determine location of lsmod binary
if os.path.exists("/sbin/lsmod"):
lsmodcmd = "/sbin/lsmod"
elif os.path.exists("/usr/bin/lsmod"):
lsmodcmd = "/usr/bin/lsmod"
usbmods = ["usb_storage", "usb-storage"]
# run lsmod command and look for any of the items from
# usbmods list in the output. If item exists in output
# then that usb module is not disabled. This is for
# reporting only. There is no fix using lsmod command.
if lsmodcmd:
for usb in usbmods:
cmd = [lsmodcmd, "|", "grep", usb]
self.ch.executeCommand(cmd)
if self.ch.getReturnCode() == "0":
compliant = False
self.detailedresults += "lsmod command shows usb not disabled\n"
break
# check compliance of grub file(s) if files exist
if re.search("Red Hat", self.environ.getostype()) and \
re.search("^6", self.environ.getosver()):
self.grubperms = [0, 0, 0o600]
elif self.ph.manager is "apt-get":
self.grubperms = [0, 0, 0o400]
else:
self.grubperms = [0, 0, 0o644]
for grub in self.grubfiles:
if os.path.exists(grub):
if self.grubperms:
if not checkPerms(grub, self.grubperms, self.logger):
compliant = False
self.detailedresults += "Permissions " + \
"incorrect on " + grub + " file\n"
contents = readFile(grub, self.logger)
if contents:
for line in contents:
if re.search("^kernel", line.strip()) \
or re.search("^linux", line.strip()) \
or re.search("^linux16", line.strip()) \
or re.search("^set default_kernelopts", line.strip()):
if not re.search("\s+nousb\s*", line):
debug = grub + " file doesn't " + \
"contain nousb kernel option\n"
self.detailedresults += grub + " file doesn't " + \
"contain nousb kernel option\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
if not re.search(
"\s+usbcore\.authorized_default=0\s*",
line):
debug = grub + " file doesn't " + \
"contain usbcore.authorized_default=0 " + \
"kernel option\n"
self.detailedresults += grub + " file doesn't " + \
"contain usbcore.authorized_default=0 " + \
"kernel option\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
# check for existence of certain usb packages, non-compliant
# if any exist
for item in self.pcmcialist:
if self.ph.check(item):
self.detailedresults += item + " is installed " + \
"and shouldn't be\n"
compliant = False
# check modprobe files inside modprobe.d directory for
# contents inside self.blacklist variable
removeables = []
found1 = True
# self.blacklist dictionary contains the directives
# and the value we're looking for (key) and contains
# a default value of False for each one. Upon finding
# each directive and value pair e.g. blacklist usb_storage
# the dictionary is updated with a True value. This keeps
# track of the directives we didnt find or that had
# incorrect values
self.blacklist = {
"blacklist usb_storage": False,
"install usbcore /bin/true": False,
"install usb-storage /bin/true": False,
"blacklist uas": False,
"blacklist firewire-ohci": False,
"blacklist firewire-sbp2": False
}
#check if /etc/modprobe.d directory exists
if os.path.exists("/etc/modprobe.d"):
#extract all files inside modprobe.d
dirs = glob.glob("/etc/modprobe.d/*")
# since file name doesn't matter
# i.e. all files are read and treated the same in
# modprobe.d, if directives are found in any of
# the files inside this directory, where they don't
# have to be in the same file, the system is compliant
for directory in dirs:
if os.path.isdir(directory):
continue
contents = readFile(directory, self.logger)
for item in self.blacklist:
for line in contents:
if re.search("^" + item, line.strip()):
self.blacklist[item] = True
# if we don't find all directives in any of the files in
# modprobe.d, we will now check /etc/modprobe.conf as
# they are all equivalent. We will still keep track of
# whether we already found one directive in one of the
# files in modprobe.d
for item in self.blacklist:
if not self.blacklist[item]:
found1 = False
else:
found1 = False
# either not all directives inside self.blacklist were found
# or /etc/modprobe.d didn't exist. Now we check /etc/modprobe.conf
# for any remaining unfound directives.
if not found1:
if os.path.exists("/etc/modprobe.conf"):
contents = readFile("/etc/modprobe.conf")
if contents:
for item in self.blacklist:
for line in contents:
if re.search("^" + item, line.strip()):
self.blacklist[item] = True
for item in self.blacklist:
if not self.blacklist[item]:
debug = "modprobe.conf nor blacklist " + \
"files contain " + item + "\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
# any directives that were found we remove from self.blacklist
# We must add to a variable called removeables first then
# iterate through removeables and remove each item self.blacklist
for item in self.blacklist:
if self.blacklist[item]:
removeables.append(item)
for item in removeables:
del (self.blacklist[item])
# check the contents of the udev file for a certain desired line
self.udevfile = "/etc/udev/rules.d/10-local.rules"
found2 = False
if os.path.exists(self.udevfile):
if not checkPerms(self.udevfile, [0, 0, 0o644], self.logger):
self.detailedresults += "Permissions not correct " + \
"on " + self.udevfile + "\n"
compliant = False
contents = readFile(self.udevfile, self.logger)
for line in contents:
if re.search(
"ACTION\=\=\"add\"\, SUBSYSTEMS\=\=\"usb\"\, RUN\+\=\"/bin/sh \-c \'for host in /sys/bus/usb/devices/usb\*\; do echo 0 \> \$host/authorized\_default\; done\'\"",
line.strip()):
found2 = True
if not found2:
self.detailedresults += "Udev rule not found to disable usb at boot\n"
debug = "Udev rule not found to disable usb at boot\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
else:
self.detailedresults += "Udev file doesn't exist to disable usb at boot\n"
debug = "Udev file doesn't exist to disable usb at boot\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
return compliant
def reportMac(self):
'''
:returns: compliant
:rtype: bool
'''
self.detailedresults = ""
compliant = True
self.setvars()
if not self.usbprofile:
self.detailedresults += "Could not locate the appropriate usb disablement profile for your system.\n"
compliant = False
self.formatDetailedResults("report", compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return compliant
self.usbdict = {
"com.apple.systemuiserver": {
"harddisk-external": {
"val": ["deny", "eject"],
"type": "",
"accept": "",
"result": False
}
}
}
self.usbeditor = KVEditorStonix(self.statechglogger, self.logger,
"profiles", self.usbprofile, "",
self.usbdict, "", "")
if not self.usbeditor.report():
if self.usbeditor.badvalues:
self.detailedresults += self.usbeditor.badvalues + "\n"
self.detailedresults += "USB Disablement profile either not installed or values are incorrect\n"
compliant = False
return compliant
def setvars(self):
self.usbprofile = ""
baseconfigpath = "/Applications/stonix4mac.app/Contents/Resources/stonix.app/Contents/MacOS/stonix_resources/files/"
self.usbprofile = baseconfigpath + "stonix4macDisableUSB.mobileconfig"
# the following path and dictionaries are for testing on local vm's
# without installing stonix package each time. DO NOT DELETE
# basetestpath = "/Users/username/stonix/src/stonix_resources/files/"
# self.usbprofile = basetestpath + "stonix4macDisableUSB.mobileconfig"
if not os.path.exists(self.usbprofile):
self.logger.log(
LogPriority.DEBUG,
"Could not locate appropriate usb disablement profile\n")
self.usbprofile = ""
def fix(self):
'''attempt to perform necessary operations to bring the system into
compliance with this rule.
@author Breen Malmberg
@change: dwalker - implemented event deletion at the beginning of fix,
also implemented a check for the ci value to see if fix should
even be run.
'''
try:
success = True
self.detailedresults = ""
# clear out event history so only the latest fix is recorded
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if not self.storageci.getcurrvalue():
self.detailedresults += "Rule not enabled so nothing was done\n"
self.logger.log(LogPriority.DEBUG,
'Rule was not enabled, so nothing was done')
return
if self.environ.getostype() == "Mac OS X":
success = self.fixMac()
else:
success = self.fixLinux()
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixMac(self):
'''This method will attempt to disable certain storage ports by moving
certain kernel extensions. If the check box is checked we will
move the kernel (if present) associated with that storage port/device
into a folder designated for those disabled extensions. If the
check box is unchecked, we will assume the user doesn't want this
disabled and if the kernel is no longer where it should be, we will
check the disabled extensions folder to see if it was previously
disabled. If it's in that folder, we will move it back.
@author: Breen Malmberg
:returns: bool
@change: dwalker 8/19/2014
'''
success = True
if not self.usbprofile:
return False
if not self.usbeditor.report():
if self.usbeditor.fix():
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.usbeditor.setEventID(myid)
if not self.usbeditor.commit():
success = False
self.detailedresults += "Unable to install " + self.usbprofile + " profile\n"
self.logdispatch.log(LogPriority.DEBUG,
"Kveditor commit failed")
else:
success = False
self.detailedresults += "Unable to install " + self.passprofile + "profile\n"
self.logdispatch.log(LogPriority.DEBUG, "Kveditor fix failed")
else:
success = False
self.detailedresults += "Password CI was not enabled.\n"
return success
def fixLinux(self):
'''sub method for linux portion of compliance fixing
@author: dwalker
:returns: success
:rtype: boolean
'''
success = True
created1, created2 = False, False
changed = False
tempstring = ""
grubfilefound = False
for grub in self.grubfiles:
if os.path.exists(grub):
grubfilefound = True
if self.grubperms:
if not checkPerms(grub, self.grubperms, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(grub, self.grubperms, self.logger,
self.statechglogger, myid):
success = False
contents = readFile(grub, self.logger)
kernellinefound = False
if contents:
for line in contents:
if re.search("^kernel", line.strip()) or re.search("^linux", line.strip()) \
or re.search("^linux16", line.strip()):
kernellinefound = True
if not re.search("\s+nousb\s*", line):
changed = True
tempstring += line.strip() + " nousb"
if not re.search(
"\s+usbcore\.authorized_default=0\s+",
line):
changed = True
tempstring += line.strip(
) + " usbcore.authorized_default=0"
tempstring += "\n"
elif re.search("^set default_kernelopts",
line.strip()):
# Fedora 31 has changed it's kernel option line format
kernellinefound = True
kernelline = line.strip()
if not re.search("\s+nousb\s*", kernelline):
changed = True
kernelline = re.sub("\"$", " nousb\"",
kernelline)
if not re.search(
"\s+usbcore\.authorized_default=0\s+",
kernelline):
changed = True
kernelline = re.sub(
"\"$", " usbcore.authorized_default=0\"",
kernelline)
tempstring += kernelline + "\n"
else:
tempstring += line
if not kernellinefound:
changed = False
self.detailedresults += "The grub file doesn't contain kernel line\n" + \
"Unable to fully implement fixes in this rule\n"
success = False
if changed:
tmpfile = grub + ".tmp"
if writeFile(tmpfile, tempstring, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": grub}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(
grub, tmpfile, myid)
os.rename(tmpfile, grub)
if not setPerms(grub, self.grubperms, self.logger):
success = False
self.detailedresults += "Unable to set permissions on " + \
grub + " file\n"
else:
success = False
if not grubfilefound:
self.detailedresults += "No grub configuration file found\n" + \
"Unable to fully fix system for this rule\n"
success = False
blacklistf = "/etc/modprobe.d/stonix-blacklist.conf"
tempstring = ""
# Check if self.blacklist still contains values, if it
# does, then we didn't find all the blacklist values
# in report
if self.blacklist:
# didn't find one or more directives in the files
# inside modprobe.d so we now check an alternate file
# we create stonixblacklist file if it doesn't
# exist and put remaining unfound blacklist
# items there
if not os.path.exists(blacklistf):
created1 = True
createFile(blacklistf, self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": blacklistf}
self.statechglogger.recordchgevent(myid, event)
# file was already present and we need contents already
# inside file to remain in newly written file
if not created1:
contents = readFile(blacklistf, self.logger)
for item in contents:
tempstring += item
for item in self.blacklist:
tempstring += item + "\n"
tmpfile = blacklistf + ".tmp"
if writeFile(tmpfile, tempstring, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": blacklistf}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(blacklistf, tmpfile, myid)
os.rename(tmpfile, blacklistf)
os.chown(blacklistf, 0, 0)
os.chmod(blacklistf, 420)
resetsecon(blacklistf)
if not checkPerms(blacklistf, [0, 0, 420], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(blacklistf, [0, 0, 420], self.logger,
self.statechglogger, myid):
success = False
if self.ph.manager == "apt-get":
cmd = ["/usr/sbin/update-initramfs", "-u"]
if not self.ch.executeCommand(cmd):
success = False
self.detailedresults += "Unable to run update-initramfs command\n"
for item in self.pcmcialist:
if self.ph.check(item):
self.ph.remove(item)
self.pkgremovedlist.append(item)
if not os.path.exists(self.udevfile):
if not createFile(self.udevfile, self.logger):
self.detailedresults += "Unable to create " + \
self.udevfile + " file\n"
success = False
else:
created2 = True
if os.path.exists(self.udevfile):
if not checkPerms(self.udevfile, [0, 0, 0o644], self.logger):
if created2:
if not setPerms(self.udevfile, [0, 0, 0o644], self.logger):
success = False
self.detailedresults += "Unable to set " + \
"permissions on " + self.udevfile + "\n"
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.udevfile, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
success = False
self.detailedresults += "Unable to set " + \
"permissions on " + self.udevfile + "\n"
found = False
contents = readFile(self.udevfile, self.logger)
tempstring = ""
for line in contents:
if re.search(
"ACTION==\"add\"\, SUBSYSTEMS==\"usb\"\, RUN+=\"/bin/sh -c \'for host in /sys/bus/usb/devices/usb\*\; do echo 0 > \$host/authorized_default; done\'\"",
line.strip()):
found = True
tempstring += line
if not found:
tempstring += "ACTION==\"add\", SUBSYSTEMS==\"usb\", RUN+=\"/bin/sh -c \'for host in /sys/bus/usb/devices/usb*; do echo 0 > $host/authorized_default; done\'\""
tmpfile = self.udevfile + ".tmp"
if writeFile(tmpfile, tempstring, self.logger):
if not created2:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "conf",
"filepath": self.udevfile
}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(
self.udevfile, tmpfile, myid)
os.rename(tmpfile, self.udevfile)
os.chown(self.udevfile, 0, 0)
os.chmod(self.udevfile, 0o644)
resetsecon(self.udevfile)
else:
success = False
self.detailedresults += "Unable to write changes " + \
"to " + self.udevfile + "\n"
return success
class SetTFTPDSecureMode(Rule):
"""
"""
def __init__(self, config, environ, logger, statechglogger):
"""
:param config:
:param environ:
:param logger:
:param statechglogger:
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rootrequired = True
self.rulenumber = 98
self.rulename = 'SetTFTPDSecureMode'
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
datatype = 'bool'
key = 'SETTFTPDSECUREMODE'
instructions = "To disable this rule set the value of " + \
"SETTFTPDSECUREMODE to False"
default = True
self.tftpdci = self.initCi(datatype, key, instructions, default)
self.guidance = ["NSA 3.1.5.4"]
self.iditerator = 0
self.editor = ""
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd']
}
def report(self):
"""
:return: self.compliant
:rtype: bool
"""
try:
self.detailedresults = ""
compliant = True
self.ph = Pkghelper(self.logger, self.environ)
if self.ph.manager == "apt-get":
pkg = "tftpd-hpa"
if self.ph.check(pkg):
self.tftpFile = "/etc/default/tftpd-hpa"
if os.path.exists(self.tftpFile):
compliant = self.reportDebianSys()
else:
pkg = "tftp-server"
if self.ph.check(pkg):
self.tftpFile = "/etc/xinetd.d/tftp"
if os.path.exists(self.tftpFile):
compliant = self.reportOtherSys()
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def reportDebianSys(self):
"""
:return: compliant
:rtype: bool
"""
contents = readFile(self.tftpFile, self.logger)
found1 = False
found2 = False
compliant = True
compliant1 = True
compliant2 = True
for line in contents:
if re.search("TFTP_OPTIONS", line):
found1 = True
if re.search("=", line):
tmp = line.strip()
tmp = tmp.split("=")
try:
#remove beginning and ending spaces of the part
#after = if necessary
opts = tmp[1].strip()
#opts = "\" sdfads \""
#replace actual quotes with nothing
opts = re.sub("\"", "", opts)
#opts = " sdfads "
#once again replace any whitespace with just one space
opts = re.sub("/s+", " ", opts.strip())
#split by single whitespace
opts = opts.split(" ")
if "--secure" not in opts:
compliant1 = False
except IndexError:
self.detailedresults += "No value after = \n" + \
"Bad file format.\n"
compliant1 = False
elif re.search("TFTP_DIRECTORY", line):
found2 = True
if re.search("=", line):
tmp = line.strip()
tmp = tmp.split("=")
try:
opts = tmp[1].strip()
opts = re.sub("\"", "", opts)
if not re.search("^/var/lib/tftpboot$", opts):
compliant2 = False
except IndexError:
self.detailedresults += "No value after = \n" + \
"Bad file format.\n"
compliant2 = False
if not compliant1:
self.detailedresults += self.tftpFile + " doesn't contain " + \
"the --secure option for the TFTP_OPTIONS key\n"
compliant = False
if not compliant2:
self.detailedresults += self.tftpFile + " doesn't contain " + \
"the desired directory for the TFTP_DIRECTORY key\n"
compliant = False
if not found1:
self.detailedresults += self.tftpFile + " doesn't contain " + \
"the TFTP_OPTIONS key at all\n"
compliant = False
if not found2:
self.detailedresults += self.tftpFile + " doesn't contain " + \
"the TFTP_DIRECTORY key at all\n"
compliant = False
return compliant
def reportOtherSys(self):
"""
:return: compliant
:rtype: bool
"""
tftpoptions, contents2 = [], []
contents = readFile(self.tftpFile, self.logger)
found = False
compliant = True
i = 0
if not checkPerms(self.tftpFile, [0, 0, 420], self.logger):
self.detailedresults += "Permissions on tftp file are incorrect\n"
compliant = False
try:
for line in contents:
if re.search("service tftp", line.strip()):
contents2 = contents[i + 1:]
else:
i += 1
except IndexError:
pass
if contents2:
if contents2[0].strip() == "{":
del (contents2[0])
if contents2:
i = 0
while i <= len(contents2) and contents2[i].strip(
) != "}" and contents2[i].strip() != "{":
tftpoptions.append(contents2[i])
i += 1
if tftpoptions:
for line in tftpoptions:
if re.search("server_args", line):
found = True
if re.search("=", line):
line = line.split("=")
val = re.sub("\s+", " ", line[1].strip())
if not re.search("-s",
val) and not re.search(
"--search", val):
compliant = False
self.detailedresults += "server_args line " + \
"doesn't contain the -s option\n"
elif not re.search(
"\s?-s /var/lib/tftpboot", val
) and not re.search(
"\s?--search /var/lib/tftpboot",
val):
compliant = False
self.detailedresults += "server_args line " + \
"doesn't contain the correct contents\n"
else:
self.detailedresults += "server_args line " + \
"found but contains no = sign, bad format.\n"
compliant = False
else:
compliant = False
self.detailedresults += "There are no tftp " + \
"options inside tftp file\n"
else:
compliant = False
self.detailedresults += "tftp file doesn't contain the " + \
"line service tftp\nBad Format\n"
if not found:
self.detailedresults += "server_args line not found.\n"
compliant = False
elif found and not compliant:
compliant = False
self.detailedresults += "server_args line found but " + \
"either doesn't contain -s argument or has bad " + \
"format.\n"
return compliant
def fix(self):
"""
:return: self.rulesuccess
:rtype: bool
"""
try:
success = True
self.detailedresults = ""
# clear out event history so only the latest fix is recorded
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if not self.tftpdci.getcurrvalue():
return
elif self.ph.manager == "apt-get":
if os.path.exists(self.tftpFile):
success = self.fixDebianSys()
else:
if os.path.exists(self.tftpFile):
success = self.fixOtherSys()
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixOtherSys(self):
"""
:return: success
:rtype: bool
"""
success = True
if not checkPerms(self.tftpFile, [0, 0, 420], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.tftpFile, [0, 0, 420], self.logger,
self.statechglogger, myid):
self.detailedresults += "Unable to set " + \
"permissions on " + self.tftpFile + "\n"
success = False
try:
contents2 = []
contents = readFile(self.tftpFile, self.logger)
found = False
tempstring = ""
i = 0
tftplinefound = False
for line in contents:
if re.search("service tftp", line.strip()):
tempstring += line
tftplinefound = True
contents2 = contents[i + 1:]
break
else:
tempstring += line
i += 1
if not tftplinefound:
self.detailedresults += "tftp file doesn't contain " + \
"\"service tftp\" line. Stonix will not attempt to " + \
"fix this. This will require a manual fix\n"
return False
if contents2:
if contents2[0].strip() == "{":
tempstring += contents2[0]
del (contents2[0])
if contents2:
for line in contents2:
if re.search("server_args", line):
found = True
if re.search("=", line):
tmp = line.split("=")
val = re.sub("/s+", " ", tmp[1].strip())
if re.search("-s", val) or re.search(
"--secure", val):
if not re.search(
"-s /var/lib/tftpboot", val
) and not re.search(
"--secure /var/lib/tftpboot",
val):
val = re.sub(
"-s\s{0,1}/{0,1}.*\s{0,1}",
"-s /var/lib/tftpboot", tmp[1])
tempstring += "\tserver_args \t\t= " + val + "\n"
else:
tempstring += line
else:
tempstring += line + " -s /var/lib/tftpboot\n"
else:
tempstring += "\tserver_args\t\t= -s /var/lib/tftpboot\n"
elif re.search("}", line.strip()):
if not found:
tempstring += "\tserver_args\t\t= -s /var/lib/tftpboot\n"
tempstring += "}"
break
else:
tempstring = ""
break
else:
tempstring += line
except IndexError:
self.detailedresults += "The tftp file is in bad format\n " + \
"Will not attempt to correct this file. Exiting\n"
return False
if not tempstring:
return True
tmpfile = self.tftpFile + ".tmp"
if writeFile(tmpfile, tempstring, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": self.tftpFile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.tftpFile, tmpfile, myid)
os.rename(tmpfile, self.tftpFile)
os.chown(self.tftpFile, 0, 0)
os.chmod(self.tftpFile, 420)
resetsecon(self.tftpFile)
else:
self.detailedresults += "Unable to write new contents " + \
"to " + self.tftpFile + " file.\n"
success = False
return success
def fixDebianSys(self):
"""
:return: success
:rtype: bool
"""
success = True
if not checkPerms(self.tftpFile, [0, 0, 420], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.tftpFile, [0, 0, 420], self.logger,
self.statechglogger, myid):
self.detailedresults += "Unable to set " + \
"permissions on " + self.tftpFile + "\n"
success = False
contents = readFile(self.tftpFile, self.logger)
found1 = False
found2 = False
tempstring = ""
for line in contents:
if re.search("TFTP_OPTIONS", line):
if found1:
continue
if re.search("=", line):
tmp = line.strip()
tmp = tmp.split("=")
try:
#remove beginning and ending spaces of the part
#after = if necessary
opts = tmp[1].strip()
#opts = "\" sdfads \""
#replace actual quotes with nothing
opts = re.sub("\"", "", opts)
#opts = " sdfads "
#once again replace any whitespace with just one space
opts = re.sub("/s+", " ", opts.strip())
#split by single whitespace
opts = opts.split(" ")
if "--secure" not in opts:
continue
else:
tempstring += line
found1 = True
except IndexError:
continue
else:
continue
elif re.search("TFTP_DIRECTORY", line):
if found2:
continue
if re.search("=", line):
tmp = line.strip()
tmp = tmp.split("=")
try:
opts = tmp[1].strip()
opts = re.sub("\"", "", opts)
if not re.search("^/var/lib/tftpboot$", opts):
continue
else:
tempstring += line
found2 = True
except IndexError:
continue
else:
tempstring += line
if not found1:
tempstring += "TFTP_OPTIONS=\"--secure\"\n"
if not found2:
tempstring += "TFTP_DIRECTORY=\"/var/lib/tftpboot\"\n"
tmpfile = self.tftpFile + ".tmp"
if writeFile(tmpfile, tempstring, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": self.tftpFile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.tftpFile, tmpfile, myid)
os.rename(tmpfile, self.tftpFile)
os.chown(self.tftpFile, 0, 0)
os.chmod(self.tftpFile, 420)
resetsecon(self.tftpFile)
else:
self.detailedresults += "Unable to write new contents " + \
"to " + self.tftpFile + " file.\n"
success = False
return success
class ConfigureSystemAuthentication(Rule):
"""
Configure system authentication and password settings in accordance
with rhel 7 stig requirements
"""
def __init__(self, config, environ, logger, statechglogger):
"""
:param config:
:param environ:
:param logger:
:param statechglogger:
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 57
self.rulename = "ConfigureSystemAuthentication"
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.applicable = {'type': 'white',
'family': 'linux'}
datatype = "bool"
key = "CONFIGSYSAUTH"
instructions = "To disable this rule, set the value of " + \
"CONFIGSYSAUTH to False."
default = True
self.ci1 = self.initCi(datatype, key, instructions, default)
datatype = "bool"
key = "PASSWORDREQ"
instructions = "To not configure password requirements, set " + \
"PASSWORDREQ to False. This configuration item will configure " + \
"PAM's password requirements when changing to a new password."
default = True
self.ci2 = self.initCi(datatype, key, instructions, default)
datatype = "bool"
key = "PASSWORDFAIL"
instructions = "To not configure password fail locking, set " + \
"PASSWORDFAIL to False. This configuration item will " + \
"configure PAM's failed login attempts mechanism using either " + \
"faillock or tally2."
default = True
self.ci3 = self.initCi(datatype, key, instructions, default)
datatype = "bool"
key = "PWHASHING"
instructions = "To not set the hashing algorithm, set " + \
"PWHASHING to False. This configuration item will configure " + \
"libuser and/or login.defs, which specifies the hashing " + \
"algorithm to use."
default = True
self.ci4 = self.initCi(datatype, key, instructions, default)
self.guidance = ["NSA 2.3.3.1,", "NSA 2.3.3.2"]
self.created = False
self.localize()
def localize(self):
"""
set up session variables based on system platform and
version
"""
myos = self.environ.getostype().lower()
if re.search("suse", myos):
self.password = PASSWORD_ZYPPER
self.auth = AUTH_ZYPPER
self.acct = ACCOUNT_ZYPPER
elif re.search("debian|ubuntu", myos):
self.password = PASSWORD_APT
self.auth = AUTH_APT
self.acct = ACCOUNT_APT
else:
self.password = PASSWORD_YUM
self.auth = AUTH_YUM
self.acct = ACCOUNT_YUM
self.session = SESSION_YUM
def report(self):
"""
ConfigureSystemAuthentication() report method to report if system
is compliant with authentication and password settings
@author: Derek Walker
:return: self.compliant
:rtype: bool
"""
self.compliant = True
self.detailedresults = ""
self.ci2comp, self.ci3comp, self.ci4comp = True, True, True
try:
if not self.reportLinux():
self.compliant = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant, self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
"""
ConfigureSystemAuthentication.fix() method to fix the system to be
compliant with authentication and password settings
@author: Derek Walker
:return: self.rulesuccess
:rtype: bool
"""
self.rulesuccess = True
self.detailedresults = ""
self.iditerator = 0
try:
if not self.ci1.getcurrvalue():
return self.rulesuccess
# delete past state change records from previous fix
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if not self.fixLinux():
self.rulesuccess = False
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def reportLinux(self):
"""
Linux-specific submethod for config reporting
@author: Derek Walker
:return: compliant
:rtype: bool
"""
self.logindefs = "/etc/login.defs"
debug = ""
compliant = True
self.editor1, self.editor2 = "", ""
self.pwqeditor = ""
self.usingpwquality, self.usingcracklib = False, False
self.usingpamtally2, self.usingpamfail = False, False
self.created1, self.created2 = False, False
self.libuserfile = "/etc/libuser.conf"
self.ph = Pkghelper(self.logger, self.environ)
self.determine_pwreqs_mechanism()
# set pam password and authentication file paths
pampassfiles = ["/etc/pam.d/common-password", "/etc/pam.d/common-password-pc", "/etc/pam.d/password-auth", "/etc/pam.d/password-auth-ac"]
pamauthfiles = ["/etc/pam.d/common-auth", "/etc/pam.d/common-auth-pc", "/etc/pam.d/system-auth", "/etc/pam.d/system-auth-ac"]
for f in pampassfiles:
if os.path.isfile(f):
self.pampassfile = f
for f in pamauthfiles:
if os.path.isfile(f):
self.pamauthfile = f
if not bool(self.pampassfile and self.pamauthfile):
if self.ph.manager == "apt-get":
self.pampassfile = "/etc/pam.d/common-password"
self.pamauthfile = "/etc/pam.d/common-auth"
elif self.ph.manager == "zypper":
self.pampassfile = "/etc/pam.d/common-password-pc"
self.pamauthfile = "/etc/pam.d/common-auth-pc"
else:
self.pampassfile = "/etc/pam.d/password-auth"
self.pamauthfile = "/etc/pam.d/system-auth"
if not self.check_pwreqs_configured():
self.ci2comp = False
debug += "checkpasswordreqs method is False compliancy\n"
compliant = False
if not self.checkaccountlockout():
self.ci3comp = False
debug += "checkaccountlockout method is False compliancy\n"
compliant = False
if not self.checklogindefs():
self.ci4comp = False
debug += "checklogindefs method is False compliancy\n"
compliant = False
if not self.checklibuser():
self.ci4comp = False
debug += "checklibuser method is False compliancy\n"
compliant = False
if debug:
self.logger.log(LogPriority.DEBUG, debug)
if not self.check_showfailed_logins():
compliant = False
return compliant
def fixLinux(self):
"""
Linux specific submethod to correct linux distributions. If your
system is portage based, i.e. gentoo, you will need to do a manual
fix for everything except the login.defs file
@author: Derek Walker
:return: success
:rtype: bool
"""
success = True
try:
if self.ph.manager == "dnf":
if not self.ph.check("authconfig"):
self.ph.install("authconfig") # this is needed by fedora to continue
except:
pass
# """create backups of pamfiles"""
if os.path.exists(self.pampassfile):
createFile(self.pampassfile + ".backup", self.logger)
if os.path.exists(self.pamauthfile):
createFile(self.pamauthfile + ".backup", self.logger)
if self.ci2.getcurrvalue():
if not self.ci2comp:
# configure regex for pwquality
if self.usingpwquality:
self.password = re.sub("pam_cracklib\.so", "pam_pwquality.so", self.password)
if self.environ.getsystemfismacat() == "high":
self.password = re.sub("minlen=8", "minlen=14", self.password)
self.password = re.sub("minclass=3", "minclass=4", self.password)
regex = PWQUALITY_HIGH_REGEX
else:
regex = PWQUALITY_REGEX
if self.pwqinstalled:
if not self.setpasswordsetup(regex):
success = False
else:
if not self.setpasswordsetup(regex, self.pwqualitypkgs):
success = False
# configure regex for cracklib
elif self.usingcracklib:
self.password = re.sub("pam_pwquality\.so", "pam_cracklib.so", self.password)
if self.environ.getsystemfismacat() == "high":
self.password = re.sub("minlen=8", "minlen=14", self.password)
self.password = re.sub("minclass=3", "minclass=4", self.password)
regex = CRACKLIB_HIGH_REGEX
else:
regex = CRACKLIB_REGEX
if self.clinstalled:
if not self.setpasswordsetup(regex):
success = False
else:
if not self.setpasswordsetup(regex, self.cracklibpkgs):
success = False
else:
error = "Could not find pwquality/cracklib pam module. Fix failed."
self.logger.log(LogPriority.ERROR, error)
self.detailedresults += error + "\n"
return False
if self.ci3.getcurrvalue():
if not self.ci3comp:
if self.usingpamfail:
regex = PAMFAIL_REGEX
if not self.setaccountlockout(regex):
success = False
self.detailedresults += "Unable to configure pam for faillock\n"
elif self.usingpamtally2:
regex = PAMTALLY_REGEX
if not self.setaccountlockout(regex):
success = False
self.detailedresults += "Unable to configure pam for pam_tally2\n"
else:
self.detailedresults += "There is no account lockout program available for this system\n"
success = False
if self.ci4.getcurrvalue():
if not self.ci4comp:
if not self.checklibuser():
if not self.setlibuser():
debug = "setlibuser() failed\n"
self.detailedresults += "Unable to configure /etc/libuser.conf\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
if not self.checklogindefs():
if not self.setlogindefs():
debug = "setdefpasshash() failed\n"
self.logger.log(LogPriority.DEBUG, debug)
self.detailedresults += "Unable to configure /etc/login.defs file\n"
success = False
if not self.set_showfailed_logins():
success = False
return success
def check_showfailed_logins(self):
"""
config file: /etc/pam.d/postlogin-ac
config option: session required pam_lastlog.so showfailed
:return:
"""
configured = True
search_line = {"session": "required pam_lastlog.so showfailed"}
config_file = "/etc/pam.d/postlogin-ac"
tmpfile = config_file + ".stonixtmp"
self.lastlog_editor = KVEditorStonix(self.statechglogger, self.logger, "conf", config_file, tmpfile, search_line, "present", "space")
if not self.lastlog_editor.report():
configured = False
self.detailedresults += "\nShow failed logins option is not configured correctly in PAM"
return configured
def set_showfailed_logins(self):
"""
config file: /etc/pam.d/postlogin-ac
config option: session required pam_lastlog.so showfailed
:return: success
:rtype: bool
"""
success = True
if not self.lastlog_editor.fix():
success = False
self.detailedresults += "\nFailed to enable show failed logins option in PAM"
elif not self.lastlog_editor.commit():
success = False
self.detailedresults += "\nFailed to enable show failed logins option in PAM"
return success
def determine_pwreqs_mechanism(self):
"""
determine whether this system is using cracklib or pwquality
as a password requirements control mechanism
use pwquality by default since cracklib is legacy
"""
self.usingcracklib = False
self.usingpwquality = False
self.pwqualitypkg = ""
self.cracklibpkg = ""
# potential password requirements package names
self.cracklibpkgs = ["libpam-cracklib",
"cracklib"]
self.pwqualitypkgs = ["libpam-pwquality",
"pam_pwquality",
"libpwquality",
"libpwquality1"]
# pwquality check
for pkg in self.pwqualitypkgs:
if self.ph.check(pkg):
self.usingpwquality = True
self.pwqualitypkg = pkg
break
if not self.usingpwquality:
for pkg in self.pwqualitypkgs:
if self.ph.checkAvailable(pkg):
self.usingpwquality = True
self.pwqualitypkg = pkg
break
# cracklib check (only runs if pwquality check turns up nothing)
if not self.usingpwquality:
for pkg in self.cracklibpkgs:
if self.ph.check(pkg):
self.usingcracklib = True
self.cracklibpkg = pkg
break
if not self.usingcracklib:
for pkg in self.cracklibpkgs:
if self.ph.checkAvailable(pkg):
self.usingcracklib = True
self.cracklibpkg = pkg
break
def check_pwreqs_installed(self):
"""
determine if either a cracklib package or pwquality
package is installed
:return: installed
:rtype: bool
"""
installed = False
self.pwqinstalled = False
self.clinstalled = False
for pkg in self.pwqualitypkgs:
if self.ph.check(pkg):
self.pwqinstalled = True
for pkg in self.cracklibpkgs:
if self.ph.check(pkg):
self.clinstalled = True
if bool(self.clinstalled or self.pwqinstalled):
installed = True
return installed
def check_pwreqs_configured(self):
"""
check whether the password requirements have been properly configured
in PAM, using either cracklib or pwquality
:return: passwords_configured
:rtype: bool
"""
passwords_configured = True
if not self.check_pwreqs_installed():
passwords_configured = False
return passwords_configured
if self.usingpwquality:
if not self.pwqinstalled:
for pkg in self.pwqualitypkgs:
if self.ph.install(pkg):
self.pwqinstalled = True
break
if not self.checkpasswordsetup("pwquality"):
self.detailedresults += "System is using pwquality but it's not configured properly in PAM\n"
passwords_configured = False
elif self.usingcracklib:
if not self.clinstalled:
for pkg in self.cracklibpkgs:
if self.ph.install(pkg):
self.clinstalled = True
break
if not self.checkpasswordsetup("cracklib"):
self.detailedresults += "System is using cracklib but it's not configured properly in PAM\n"
passwords_configured = False
return passwords_configured
def checkpasswordsetup(self, package):
"""
Method called from within checkpasswordreqs method
@author: Derek Walker
:param package: string; name of package to check for
:return: compliant
:rtype: bool
"""
compliant = True
regex1 = ""
if package == "pwquality":
self.password = re.sub("pam_cracklib\.so", "pam_pwquality.so", self.password)
if self.environ.getsystemfismacat() == "high":
self.password = re.sub("minlen=8", "minlen=14", self.password)
self.password = re.sub("minclass=3", "minclass=4", self.password)
regex1 = PWQUALITY_HIGH_REGEX
else:
regex1 = PWQUALITY_REGEX
if not self.chkpwquality():
compliant = False
elif package == "cracklib":
self.password = re.sub("pam_pwquality\.so", "pam_cracklib.so", self.password)
if self.environ.getsystemfismacat() == "high":
self.password = re.sub("minlen=8", "minlen=14", self.password)
self.password = re.sub("minclass=3", "minclass=4", self.password)
regex1 = CRACKLIB_HIGH_REGEX
else:
regex1 = CRACKLIB_REGEX
regex2 = "^password[ \t]+sufficient[ \t]+pam_unix.so\s+sha512\s+shadow\s+try_first_pass\s+use_authtok\s+remember=10"
pamfiles = []
if self.ph.manager in ("yum", "dnf"):
pamfiles.append(self.pamauthfile)
pamfiles.append(self.pampassfile)
else:
pamfiles.append(self.pampassfile)
for pamfile in pamfiles:
found1, found2 = False, False
if not os.path.exists(pamfile):
self.detailedresults += pamfile + " doesn't exist\n"
compliant = False
else:
if not checkPerms(pamfile, [0, 0, 0o644], self.logger):
self.detailedresults += "Incorrect permissions or ownership exist for file " + pamfile
compliant = False
contents = readFile(pamfile, self.logger)
if not contents:
self.detailedresults += pamfile + " is blank\n"
compliant = False
else:
for line in contents:
if re.search(regex1, line.strip()):
found1 = True
if re.search(regex2, line.strip()):
found2 = True
if not found1:
self.detailedresults += "\n'password requisite ...' line not correct in " + pamfile
if not found2:
self.detailedresults += "\n'password sufficient ...' line not correct in " + pamfile
compliant = False
return compliant
def setpasswordsetup(self, regex1, pkglist = None):
"""
configure password requirements in pam, install necessary packages
:param regex1: string; regular expression
:param pkglist: list; string names of packages to install
:return: success
:rtype: bool
"""
regex2 = "^password[ \t]+sufficient[ \t]+pam_unix.so sha512 shadow " + \
"try_first_pass use_authtok remember=10"
success = True
pamfiles = []
installed = False
if pkglist:
for pkg in pkglist:
if self.ph.check(pkg):
installed = True
break
else:
installed = True
if not installed:
for pkg in pkglist:
if self.ph.checkAvailable(pkg):
if not self.ph.install(pkg):
self.detailedresults += "Unable to install pkg " + pkg + "\n"
return False
else:
installed = True
if self.usingpwquality:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
comm = self.ph.getRemove() + pkg
event = {"eventtype": "commandstring",
"command": comm}
self.statechglogger.recordchgevent(myid, event)
pwqfile = "/etc/security/pwquality.conf"
tmpfile = pwqfile + ".stonixtmp"
if self.environ.getsystemfismacat() == "high":
data = {"difok": "7",
"minlen": "14",
"dcredit": "0",
"ucredit": "0",
"lcredit": "0",
"ocredit": "0",
"maxrepeat": "3",
"minclass": "4"}
else:
data = {"difok": "7",
"minlen": "8",
"dcredit": "0",
"ucredit": "0",
"lcredit": "0",
"ocredit": "0",
"maxrepeat": "3",
"minclass": "3"}
self.pwqeditor = KVEditorStonix(self.statechglogger,
self.logger, "conf",
pwqfile, tmpfile, data,
"present", "openeq")
self.pwqeditor.report()
break
if not installed:
self.detailedresults += "No password checking program available\n"
return False
if self.usingpwquality:
if not self.setpwquality():
success = False
if self.ph.manager in ("yum", "dnf"):
writecontents = self.auth + "\n" + self.acct + "\n" + \
self.password + "\n" + self.session
pamfiles.append(self.pamauthfile)
pamfiles.append(self.pampassfile)
else:
writecontents = self.password
pamfiles.append(self.pampassfile)
for pamfile in pamfiles:
if not os.path.exists(pamfile):
self.detailedresults += pamfile + " doesn't exist.\n" + \
"Stonix will not attempt to create this file " + \
"and the fix for the this rule will not continue\n"
return False
# """Check permissions on pam file(s)"""
for pamfile in pamfiles:
if not checkPerms(pamfile, [0, 0, 0o644], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(pamfile, [0, 0, 0o644], self.logger, self.statechglogger, myid):
success = False
self.detailedresults += "Unable to set correct permissions on " + pamfile + "\n"
contents = readFile(pamfile, self.logger)
found1, found2 = False, False
for line in contents:
if re.search(regex1, line.strip()):
found1 = True
if re.search(regex2, line.strip()):
found2 = True
if not found1 or not found2:
tmpfile = pamfile + ".stonixtmp"
if writeFile(tmpfile, writecontents, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'conf',
'filepath': pamfile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(pamfile, tmpfile, myid)
os.rename(tmpfile, pamfile)
os.chown(pamfile, 0, 0)
os.chmod(pamfile, 0o644)
resetsecon(pamfile)
else:
self.detailedresults += "Unable to write to " + pamfile + "\n"
success = False
return success
def checkaccountlockout(self):
"""
Method to determine which account locking program to
use if any
@author: Derek Walker
:return: compliant
:rtype: bool
"""
which = "/usr/bin/which "
cmd1 = which + "faillock"
cmd2 = which + "pam_tally2"
ch = CommandHelper(self.logger)
pamfiles = []
compliant = True
regex = ""
if ch.executeCommand(cmd1):
debug = "ran " + cmd1 + " successfully\n"
self.logger.log(LogPriority.DEBUG, debug)
if ch.getReturnCode() == 0:
debug = "return code of 0 and using faillock\n"
self.logger.log(LogPriority.DEBUG, debug)
self.usingpamfail = True
elif ch.executeCommand(cmd2):
debug = "ran " + cmd2 + " successfully\n"
self.logger.log(LogPriority.DEBUG, debug)
if ch.getReturnCode() == 0:
debug = "return code of 0 and using pam_tally2\n"
self.logger.log(LogPriority.DEBUG, debug)
self.usingpamtally2 = True
else:
self.detailedresults += "There is no account " + \
"locking program available for this " + \
"distribution\n"
return False
elif ch.executeCommand(cmd2):
debug = "ran " + cmd2 + " successfully\n"
self.logger.log(LogPriority.DEBUG, debug)
if ch.getReturnCode() == 0:
debug = "return code of 0 and using pam_tally2\n"
self.logger.log(LogPriority.DEBUG, debug)
self.usingpamtally2 = True
else:
self.detailedresults += "There is no account " + \
"locking program available for this " + \
"distribution\n"
return False
else:
self.detailedresults += "There is no account " + \
"locking program available for this " + \
"distribution\n"
return False
if self.usingpamfail:
regex = "^auth[ \t]+required[ \t]+pam_faillock.so preauth silent audit " + \
"deny=5 unlock_time=900 fail_interval=900"
elif self.usingpamtally2:
regex = "^auth[ \t]+required[ \t]+pam_tally2.so deny=5 " + \
"unlock_time=900 onerr=fail"
if self.ph.manager in("yum", "dnf"):
pamfiles.append(self.pamauthfile)
pamfiles.append(self.pampassfile)
else:
pamfiles.append(self.pamauthfile)
for pamfile in pamfiles:
found = False
if not os.path.exists(pamfile):
self.detailedresults += "Critical pam file " + pamfile + " doesn't exist\n"
compliant = False
else:
if not checkPerms(pamfile, [0, 0, 0o644], self.logger):
self.detailedresults += "Permissions aren't correct on " + pamfile + "\n"
self.ci3comp = False
compliant = False
contents = readFile(pamfile, self.logger)
if not contents:
self.detailedresults += pamfile + " is blank\n"
self.ci3comp = False
compliant = False
else:
for line in contents:
if re.search(regex, line.strip()):
found = True
if not found:
self.detailedresults += "Didn't find the correct contents in " + pamfile + "\n"
self.ci3comp = False
compliant = False
return compliant
def setaccountlockout(self, regex):
"""
configure the account lockout time in pam
:param regex: string; regular expression
:return: success
:rtype: bool
"""
success = True
pamfiles = []
if self.ph.manager in ("yum", "dnf"):
pamfiles.append(self.pamauthfile)
pamfiles.append(self.pampassfile)
writecontents = self.auth + "\n" + self.acct + "\n" + \
self.password + "\n" + self.session
else:
pamfiles.append(self.pamauthfile)
writecontents = self.auth
for pamfile in pamfiles:
if not os.path.exists(pamfile):
self.detailedresults += pamfile + " doesn't exist.\n" + \
"Stonix will not attempt to create this file " + \
"and the fix for the this rule will not continue\n"
return False
# """Check permissions on pam file(s)"""
for pamfile in pamfiles:
if not checkPerms(pamfile, [0, 0, 0o644], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(pamfile, [0, 0, 0o644], self.logger, self.statechglogger, myid):
success = False
self.detailedresults += "Unable to set " + \
"correct permissions on " + pamfile + "\n"
contents = readFile(pamfile, self.logger)
found = False
for line in contents:
if re.search(regex, line.strip()):
found = True
if not found:
tmpfile = pamfile + ".stonixtmp"
if writeFile(tmpfile, writecontents, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'conf',
'filepath': pamfile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(pamfile, tmpfile, myid)
os.rename(tmpfile, pamfile)
os.chown(pamfile, 0, 0)
os.chmod(pamfile, 0o644)
resetsecon(pamfile)
else:
self.detailedresults += "Unable to write to " + pamfile + "\n"
success = False
return success
def chkpwquality(self):
"""
check settings of pwquality pam plugin
:return: compliant
:rtype: bool
"""
compliant = True
pwqfile = "/etc/security/pwquality.conf"
if os.path.exists(pwqfile):
tmpfile = pwqfile + ".stonixtmp"
if self.environ.getsystemfismacat() == "high":
data = {"difok": "7",
"minlen": "14",
"dcredit": "0",
"ucredit": "0",
"lcredit": "0",
"ocredit": "0",
"maxrepeat": "3",
"minclass": "4"}
else:
data = {"difok": "7",
"minlen": "8",
"dcredit": "0",
"ucredit": "0",
"lcredit": "0",
"ocredit": "0",
"maxrepeat": "3",
"minclass": "3"}
self.pwqeditor = KVEditorStonix(self.statechglogger, self.logger,
"conf", pwqfile, tmpfile, data,
"present", "openeq")
if not self.pwqeditor.report():
compliant = False
self.detailedresults += "Not all correct contents were found in " + pwqfile + "\n"
else:
compliant = False
self.detailedresults += "System is using pwquality and crucial file /etc/security/pwquality.conf doesn't exist\n"
return compliant
def checklogindefs(self):
"""
Method to check the password hash algorithm settings in
login.defs
:return: compliant
:rtype: bool
"""
compliant = True
if os.path.exists(self.logindefs):
if not checkPerms(self.logindefs, [0, 0, 0o644], self.logger):
self.detailedresults += "Permissions incorrect for " + \
self.logindefs + " file\n"
compliant = False
data = {"MD5_CRYPT_ENAB": "no",
"ENCRYPT_METHOD": "SHA512",
"PASS_MAX_DAYS": "180",
"PASS_MIN_DAYS": "1",
"PASS_WARN_AGE": "7",
"FAIL_DELAY": "4"}
tmppath = self.logindefs + ".stonixtmp"
self.editor2 = KVEditorStonix(self.statechglogger, self.logger,
"conf", self.logindefs, tmppath,
data, "present", "space")
if not self.editor2.report():
debug = self.logindefs + " doesn't contain the correct " + \
"contents\n"
self.detailedresults += self.logindefs + " doesn't contain " + \
"the correct contents\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
return compliant
def checklibuser(self):
"""
Private method to check the password hash algorithm settings in
libuser.conf
@author: Derek Walker
:return: compliant
:rtype: bool
"""
compliant = True
# """check if libuser is intalled"""
if not self.ph.check("libuser"):
# """if not, check if available"""
if self.ph.checkAvailable("libuser"):
self.detailedresults += "libuser available but not installed\n"
return False
else:
# """not available, not a problem"""
return True
# """create a kveditor for file if it exists, if not, we do it in
# the setlibuser method inside the fix"""
if os.path.exists(self.libuserfile):
data = {"defaults": {"crypt_style": "sha512"}}
datatype = "tagconf"
intent = "present"
tmppath = self.libuserfile + ".stonixtmp"
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
datatype, self.libuserfile,
tmppath, data, intent, "openeq")
if not self.editor1.report():
debug = "/etc/libuser.conf doesn't contain the correct contents\n"
self.detailedresults += "/etc/libuser.conf doesn't contain the correct contents\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
if not checkPerms(self.libuserfile, [0, 0, 0o644], self.logger):
self.detailedresults += "Permissions are incorrect on " + self.libuserfile + "\n"
compliant = False
else:
self.detailedresults += "Libuser installed but libuser file doesn't exist\n"
compliant = False
return compliant
def setpwquality(self):
"""
:return:
"""
success = True
created = False
pwqfile = "/etc/security/pwquality.conf"
if not os.path.exists(pwqfile):
createFile(pwqfile, self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'creation',
'filepath': pwqfile}
self.statechglogger.recordchgevent(myid, event)
created = True
tmpfile = pwqfile + ".stonixtmp"
if self.environ.getsystemfismacat() == "high":
data = {"difok": "7",
"minlen": "14",
"dcredit": "0",
"ucredit": "0",
"lcredit": "0",
"ocredit": "0",
"maxrepeat": "3",
"minclass": "4"}
else:
data = {"difok": "7",
"minlen": "8",
"dcredit": "0",
"ucredit": "0",
"lcredit": "0",
"ocredit": "0",
"maxrepeat": "3",
"minclass": "3"}
self.pwqeditor = KVEditorStonix(self.statechglogger, self.logger,
"conf", pwqfile, tmpfile, data,
"present", "openeq")
self.pwqeditor.report()
if self.pwqeditor.fixables:
if self.pwqeditor.fix():
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.pwqeditor.setEventID(myid)
if not self.pwqeditor.commit():
success = False
self.detailedresults += "Unable to correct " + pwqfile + "\n"
else:
success = False
self.detailedresults += "Unable to correct " + pwqfile + "\n"
return success
def setlibuser(self):
"""Method to check if libuser is installed and the contents of libuser
file.
@author: Derek Walker
:return: bool
"""
created = False
success = True
data = {"defaults": {"crypt_style": "sha512"}}
# """check if installed"""
if not self.ph.check("libuser"):
# """if not installed, check if available"""
if self.ph.checkAvailable("libuser"):
# """if available, install it"""
if not self.ph.install("libuser"):
self.detailedresults += "Unable to install libuser\n"
return False
else:
# """since we're just now installing it we know we now
# need to create the kveditor"""
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
comm = self.ph.getRemove() + "libuser"
event = {"eventtype": "commandstring",
"command": comm}
self.statechglogger.recordchgevent(myid, event)
datatype = "tagconf"
intent = "present"
tmppath = self.libuserfile + ".stonixtmp"
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
datatype, self.libuserfile,
tmppath, data, intent, "openeq")
self.editor1.report()
else:
return True
if not os.path.exists(self.libuserfile):
if not createFile(self.libuserfile, self.logger):
self.detailedresults += "Unable to create libuser file\n"
debug = "Unable to create the libuser file\n"
self.logger.log(LogPriority.DEBUG, debug)
return False
created = True
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation",
"filepath": self.libuserfile}
self.statechglogger.recordchgevent(myid, event)
tmppath = self.libuserfile + ".stonixtmp"
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
"tagconf", self.libuserfile,
tmppath, data, "present", "openeq")
self.editor1.report()
if not checkPerms(self.libuserfile, [0, 0, 0o644], self.logger):
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.libuserfile, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
success = False
self.detailedresults += "Unable to set the permissions on " + self.libuserfile + "\n"
elif not setPerms(self.libuserfile, [0, 0, 0o644], self.logger):
success = False
self.detailedresults += "Unable to set the permissions on " + self.libuserfile + "\n"
if self.editor1.fixables:
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor1.setEventID(myid)
if self.editor1.fix():
if self.editor1.commit():
debug = "/etc/libuser.conf has been corrected\n"
self.logger.log(LogPriority.DEBUG, debug)
os.chown(self.libuserfile, 0, 0)
os.chmod(self.libuserfile, 0o644)
resetsecon(self.libuserfile)
else:
self.detailedresults += "/etc/libuser.conf couldn't be corrected\n"
success = False
else:
self.detailedresults += "/etc/libuser.conf couldn't be corrected\n"
success = False
return success
def setlogindefs(self):
"""
configure login.defs options
:return: success
:rtype: bool
"""
success = True
if not checkPerms(self.logindefs, [0, 0, 0o644], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.logindefs, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
self.detailedresults += "Unable to set permissions on " + self.logindefs + " file\n"
success = False
if self.editor2:
if self.editor2.fixables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor2.setEventID(myid)
if self.editor2.fix():
if self.editor2.commit():
debug = "/etc/login.defs file has been corrected\n"
self.logger.log(LogPriority.DEBUG, debug)
os.chown(self.logindefs, 0, 0)
os.chmod(self.logindefs, 0o644)
resetsecon(self.logindefs)
else:
debug = "Unable to correct the contents of /etc/login.defs\n"
self.detailedresults += "Unable to correct the contents of /etc/login.defs\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
else:
self.detailedresults += "Unable to correct the contents of /etc/login.defs\n"
debug = "Unable to correct the contents of /etc/login.defs\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
return success
class SecureSSH(Rule):
"""
The SecureSSH class makes a number of configuration changes to SSH in \
order to ensure secure use of the functionality.
"""
def __init__(self, config, environ, logger, statechglogger):
"""
Constructor
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 8
self.rulename = 'SecureSSH'
self.formatDetailedResults("initialize")
self.mandatory = True
self.environ = environ
self.sethelptext()
self.applicable = {'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {'Mac OS X': ['10.15', 'r', '10.15.10']}}
datatype = 'bool'
key = 'SECURESSH'
instructions = "To disable this rule set the value " + \
"of SECURESSH to False"
default = True
self.ci = self.initCi(datatype, key, instructions, default)
self.guidance = ['CIS, NSA(3.5.2.1)', 'CCE 4325-7', 'CCE 4726-6',
'CCE 4475-0', 'CCE 4370-3', 'CCE 4387-7',
'CCE 3660-8', 'CCE 4431-3', 'CCE 14716-5',
'CCE 14491-5']
self.ed1, self.ed2 = "", ""
self.osname = self.environ.getosname()
if self.osname == "Mac OS":
mpa_datatype = "bool"
mpa_key = "ENABLEMACPIVAUTHSSH"
mpa_instructions = "To enable piv authentication over ssh, on Mac OS, set the value of ENABLEMACPIVAUTHSSH to True"
mpa_default = False
self.mac_piv_auth_CI = self.initCi(mpa_datatype, mpa_key, mpa_instructions, mpa_default)
def report(self):
"""
check if ssh is installed and if the correct configuration options
are set in the configuration files
:return: self.compliant
:rtype: bool
"""
try:
self.detailedresults = ""
self.installed = False
packages = ["ssh", "openssh", "openssh-server", "openssh-client"]
self.ph = Pkghelper(self.logger, self.environ)
self.compliant = True
self.sh = ServiceHelper(self.environ, self.logger)
self.macloaded = False
compliant = True
self.client = {"Host": "*",
"Protocol": "2",
"GSSAPIAuthentication": "yes",
"GSSAPIDelegateCredentials": "yes"}
self.server = {"Protocol": "2",
"SyslogFacility": "AUTHPRIV",
"PermitRootLogin": "******",
"MaxAuthTries": "5",
"RhostsRSAAuthentication": "no",
"HostbasedAuthentication": "no",
"IgnoreRhosts": "yes",
"PermitEmptyPasswords": "no",
"PasswordAuthentication": "yes",
"ChallengeResponseAuthentication": "no",
"KerberosAuthentication": "yes",
"GSSAPIAuthentication": "yes",
"GSSAPICleanupCredentials": "yes",
"UsePAM": "yes",
"Ciphers": "aes128-ctr,aes192-ctr,aes256-ctr",
"PermitUserEnvironment": "no",
"PrintLastLog": "yes",
"MACs": "hmac-sha2-256,hmac-sha2-512",
"UsePrivilegeSeparation": "sandbox",
"StrictModes": "yes",
"Compression": "no"}
if self.environ.getostype() == "Mac OS X":
self.serverfile = '/private/etc/ssh/sshd_config'
self.clientfile = '/private/etc/ssh/ssh_config'
else:
self.serverfile = "/etc/ssh/sshd_config" # server file
self.clientfile = "/etc/ssh/ssh_config" # client file
# Portion for non mac systems i.e. linux
if self.environ.getostype() != "Mac OS X":
for package in packages:
if self.ph.check(package):
self.installed = True
break
# If ssh is not installed there is no need to configure, return True
if not self.installed:
self.formatDetailedResults("report", self.compliant, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
# Portion for Mac systems
else:
# ssh is installed/enabled
if self.sh.auditService("/System/Library/LaunchDaemons/ssh.plist", serviceTarget="com.openssh.sshd"):
self.macloaded = True
# if ssh not installed/enabled, no need to configure, return True
if not self.macloaded:
self.detailedresults += "SSH not installed/enabled. Nothing to configure.\n"
self.formatDetailedResults("report", self.compliant, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
# if not self.reportMac():
# compliant = False
# Portion for both mac and linux reporting
if not self.reportSSHFile(self.serverfile, self.server):
compliant = False
if not self.reportSSHFile(self.clientfile, self.client):
compliant = False
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
"""
Main fix method divided up into mac and linux sub methods for
correcting ssh server and client files as well as configuring
Mac OS smart card authentication.
:return: self.rulesuccess
:rtype: bool
"""
try:
self.detailedresults = ""
self.iditerator = 0
success = True
debug = ""
if not self.ci.getcurrvalue():
self.detailedresults += "The rule CI was not enabled, so nothing was done.\n"
self.formatDetailedResults("fix", self.rulesuccess, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
self.rulesuccess = success
return self.rulesuccess
# Clear events from any previous fix run
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
# Portion for both linux and Mac
if not self.fixSSHFile(self.serverfile, self.server):
success = False
if not self.fixSSHFile(self.clientfile, self.client):
success = False
# Mac only portion
if self.osname == "Mac OS":
# runs the fix for the smartcard authentication for mac
if not self.fixMac():
success = False
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def reportSSHFile(self, sshfile, directives):
"""
Report configuration options of config files
:param: sshfile - filepath string
:param: directives - dictionary of desired directives
:return: compliant
:rtype: bool
"""
compliant = True
debug = ""
directives = dict(directives)
tpath = sshfile + ".tmp"
if os.path.exists(sshfile):
if re.search("Ubuntu", self.environ.getostype()):
if sshfile == "/etc/ssh/sshd_config":
del (directives["GSSAPIAuthentication"])
del (directives["KerberosAuthentication"])
elif sshfile == "/etc/ssh/ssh_config":
del (directives["GSSAPIAuthentication"])
elif self.environ.getostype() == "Mac OS X" and self.mac_piv_auth_CI.getcurrvalue():
if sshfile == "/private/etc/ssh/sshd_config":
directives["PasswordAuthentication"] = "no"
self.server = directives
editor = KVEditorStonix(self.statechglogger,
self.logger, "conf",
sshfile, tpath,
directives, "present",
"space")
if not editor.report():
self.detailedresults += "Did not find the correct " + \
"contents in sshd_config\n"
compliant = False
# for ubuntu systems we want to make sure the following two
# directives don't exist in the server file
if re.search("Ubuntu", self.environ.getostype()):
if sshfile == "/etc/ssh/sshd_config":
directives = {"GSSAPIAuthentication": "",
"KerberosAuthentication": ""}
elif sshfile == "/etc/ssh/ssh_config":
directives = {"GSSAPIAuthentication": ""}
editor.setIntent("notpresent")
editor.setData(directives)
if not editor.report():
self.detailedresults += "didn't find the correct" + \
" contents in sshd_config\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
if not checkPerms(sshfile, [0, 0, 0o644],
self.logger):
self.detailedresults += "Incorrect permissions for " + \
"file " + self.serverfile + "\n"
compliant = False
else:
self.detailedresults += sshfile + " does not exist\n"
compliant = False
return compliant
def fixSSHFile(self, sshfile, directives):
"""
apply configuration options to config files
:param: sshfile - filepath string
:param: directives - dictionary of desired directives
:return: compliant
:rtype: bool
"""
success = True
debug = ""
directives = dict(directives)
tpath = sshfile + ".tmp"
created = False
if not os.path.exists(sshfile):
createFile(sshfile, self.logger)
created = True
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation",
"filepath": sshfile}
self.statechglogger.recordchgevent(myid, event)
if os.path.exists(sshfile):
if re.search("Ubuntu", self.environ.getostype()):
if sshfile == "/etc/ssh/sshd_config":
del (directives["GSSAPIAuthentication"])
del (directives["KerberosAuthentication"])
elif sshfile == "/etc/ssh/ssh_config":
del (directives["GSSAPIAuthentication"])
elif self.environ.getostype() == "Mac OS X" and self.mac_piv_auth_CI.getcurrvalue():
if sshfile == "/private/etc/ssh/sshd_config":
directives["ChallengeResponseAuthentication"] = "no"
directives["PasswordAuthentication"] = "no"
editor = KVEditorStonix(self.statechglogger,
self.logger, "conf", sshfile,
tpath, directives, "present",
"space")
editor.report()
if re.search("Ubuntu", self.environ.getostype()):
if sshfile == "/etc/ssh/sshd_config":
directives = {"GSSAPIAuthentication": "",
"KerberosAuthentication": ""}
elif sshfile == "/etc/ssh/ssh_config":
directives = {"GSSAPIAuthentication": ""}
editor.setIntent("notpresent")
editor.setData(directives)
editor.report()
if not checkPerms(sshfile, [0, 0, 0o644], self.logger):
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(sshfile, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
success = False
else:
if not setPerms(sshfile, [0, 0, 0o644], self.logger):
success = False
if editor.fixables or editor.removeables:
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
editor.setEventID(myid)
if editor.fix():
if editor.commit():
os.chown(sshfile, 0, 0)
os.chmod(sshfile, 0o644)
resetsecon(sshfile)
else:
self.detailedresults += "Unable to correct contents " + \
"in " + sshfile + "\n"
debug = "kveditor1 commit did not run successfully"
self.logger.log(LogPriority.DEBUG, debug)
success = False
else:
self.detailedresults += "Unable to correct contents " + \
"in " + sshfile + "\n"
debug = "kveditor1 fix did not run successfully"
self.logger.log(LogPriority.DEBUG, debug)
success = False
return success
def fixMac(self):
"""
:return: success
:rtype: bool
"""
success = True
# reload ssh to read the new configurations
self.logger.log(LogPriority.DEBUG, "Restarting sshd service to read/load the new configuration changes")
if self.osname == "Mac OS":
if not self.sh.reloadService("/System/Library/LaunchDaemons/ssh.plist",
serviceTarget="com.openssh.sshd"):
success = False
self.detailedresults += "Failed to load the new ssh configuration changes\n"
else:
if not self.sh.reloadService("sshd"):
success = False
self.detailedresults += "Failed to load the new ssh configuration changes\n"
return success
class DisableThumbnailers(Rule):
"""disable the thumbnail creation feature in nautilus/gnome"""
def __init__(self, config, environ, logdispatcher, statechglogger):
"""
:param config:
:param environ:
:param logdispatcher:
:param statechglogger:
"""
Rule.__init__(self, config, environ, logdispatcher, statechglogger)
self.logger = logdispatcher
self.rulenumber = 111
self.mandatory = True
self.applicable = {'type': 'white',
'family': ['linux', 'solaris', 'freebsd']}
self.formatDetailedResults("initialize")
self.guidance = ["NSA 2.2.2.6"]
self.rulename = "DisableThumbnailers"
self.rulesuccess = True
self.sethelptext()
datatype = 'bool'
key = 'DISABLETHUMBNAILERS'
instructions = "To disable this rule set the value of DISABLETHUMBNAILERS to False."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
def localize(self):
"""
set paths based on what versions of which utilities exist on the system
:return: void
"""
self.gsettings = "/usr/bin/gsettings"
self.gconf = "/usr/bin/gconftool-2"
self.dconf = "/usr/bin/dconf"
self.getcmd = ""
self.setcmd = ""
self.updatecmd = ""
packages = ["gnome", "gdm", "gdm3", "gnome3"]
self.lockfile = "/etc/dconf/db/local.d/locks/stonix-thumbnailers"
self.lockthumbnails = {"/org/gnome/desktop/thumbnailers/disable-all":""}
if os.path.exists(self.gsettings):
self.getcmd = self.gsettings + " get org.gnome.desktop.thumbnailers disable-all"
self.setcmd = self.gsettings + " set org.gnome.desktop.thummailerss disable-all true"
elif os.path.exists(self.gconf):
self.getcmd = self.gconf + " --get /schemas/org/gnome/desktop/thumbnailers/disable_all"
self.setcmd = self.gconf + " --type bool --set /schemass/org/gnome/desktop/thumbnailers/disable_all true"
if os.path.exists(self.dconf):
self.updatecmd = self.dconf + " update"
self.ch = CommandHelper(self.logger)
self.ph = Pkghelper(self.logger, self.environ)
self.gnome_installed = False
if self.environ.getosname() != "Mac OS":
if [self.ph.check(p) for p in packages]:
self.gnome_installed = True
def report(self):
"""check the gdm/gnome setting for thumbnailers to determine
if it is off or on. report compliant if it is off,
non-compliant if it is on.
:return: self.compliant
:rtype: bool
"""
self.compliant = True
self.ch = CommandHelper(self.logger)
self.ph = Pkghelper(self.logger, self.environ)
self.detailedresults = ""
try:
self.localize()
if self.gnome_installed:
# This portion of the code is relevant to user context
if self.environ.geteuid() != 0:
self.ch.executeCommand(self.getcmd)
if not self.ch.findInOutput("true"):
self.compliant = False
self.detailedresults += "\nGnome thumbnailers are enabled"
# This portion of the code is relevant to root context
else:
if not self.checkLockFile():
self.compliant = False
else:
self.logger.log(LogPriority.DEBUG, "Gnome is not installed. Nothing to check.")
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant, self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def checkLockFile(self):
"""
:return: compliant
:rtype: bool
"""
compliant = True
kvtype = "conf"
path = self.lockfile
tmppath = self.lockfile + ".stonixtmp"
intent = "present"
conftype = "space"
self.lock_editor = KVEditorStonix(self.statechglogger, self.logdispatch, kvtype, path, tmppath, self.lockthumbnails, intent, conftype)
if not self.lock_editor.report():
compliant = False
if self.lock_editor.fixables:
self.detailedresults += "\nThe following required configuration lines were not found in the gnome lock file:\n" + "\n".join(self.lock_editor.fixables)
else:
self.detailedresults += "\nOne or more required configuration lines were not found in the gnome lock file"
return compliant
def fix(self):
"""
set the value of schema thumbnailers disable-all to true
and create the thumbnailers lock file if it doesn't exist
:return: self.rulesuccess
:rtype: bool
"""
self.rulesuccess = True
self.detailedresults = ""
self.iditerator = 0
try:
if self.ci.getcurrvalue():
# This portion of the code is run in user context
if self.environ.geteuid() != 0:
if not self.setValue():
self.rulesuccess = False
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "commandstring",
"command": re.sub("true", "false", self.setcmd)}
self.statechglogger.recordchgevent(myid, event)
# This portion of the code has to be run in root context
else:
if not self.setLockFile():
self.rulesuccess = False
if os.path.exists(self.dconf):
self.ch.executeCommand(self.updatecmd)
if self.ch.getReturnCode() == 0:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "commandstring",
"command": self.updatecmd}
self.statechglogger.recordchgevent(myid, event)
else:
self.logger.log(LogPriority.DEBUG, "CI not enabled. Fix was not performed.")
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess, self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def setValue(self):
"""
set the thumbnailers disable-all configuration value to true
:return: success
:rtype: bool
"""
success = True
self.ch.executeCommand(self.setcmd)
retcode = self.ch.getReturnCode()
if retcode != 0:
success = False
errstr = self.ch.getErrorString()
self.detailedresults += "\n" + errstr
return success
def setLockFile(self):
"""
create the lock file for disable thumbnailers (if running in root context)
:return: success - True if file is created; False if not
:rtype: bool
"""
success = True
if not os.path.isdir("/etc/dconf/db/local.d/locks"):
try:
os.makedirs("/etc/dconf/db/local.d/locks", 0o755)
except Exception:
pass
try:
if not self.lock_editor.fix():
self.detailedresults += "\nFailed to lock thumbnailers setting"
success = False
elif not self.lock_editor.commit():
self.detailedresults += "\nFailed to lock thumbnailers setting"
success = False
except Exception:
success = False
if success:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf",
"filepath": self.lockfile}
self.statechglogger.recordchgevent(myid, event)
return success
class ConfigureKerberos(Rule):
'''@author: Ekkehard J. Koch'''
def __init__(self, config, environ, logdispatcher, statechglogger):
"""
@param config:
@param environ:
@param logdispatcher:
@param statechglogger:
"""
Rule.__init__(self, config, environ, logdispatcher,
statechglogger)
self.rulenumber = 255
self.rulename = 'ConfigureKerberos'
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.rootrequired = True
self.guidance = []
self.applicable = {'type': 'white', 'family': 'linux',
'os': {'Mac OS X': ['10.15', 'r', '10.15.10']}}
# This if/else statement fixes a bug in Configure Kerberos that
# occurs on Debian systems due to the fact that Debian has no wheel
# group by default.
if self.environ.getosfamily() == 'darwin':
self.files = {"krb5.conf":
{"path": "/etc/krb5.conf",
"remove": False,
"content": MACKRB5,
"permissions": 0o644,
"owner": os.getuid(),
"group": "wheel",
"eventid": str(self.rulenumber).zfill(4) + "krb5"},
"edu.mit.Kerberos":
{"path": "/Library/Preferences/edu.mit.Kerberos",
"remove": True,
"content": None,
"permissions": None,
"owner": None,
"group": None,
"eventid": str(self.rulenumber).zfill(4) +
"Kerberos"},
"edu.mit.Kerberos.krb5kdc.launchd":
{"path": "/Library/Preferences/edu.mit.Kerberos.krb5kdc.launchd",
"remove": True,
"content": None,
"permissions": None,
"owner": None,
"group": None,
"eventid": str(self.rulenumber).zfill(4) +
"krb5kdc"},
"kerb5.conf":
{"path": "/etc/kerb5.conf",
"remove": True,
"content": None,
"permissions": None,
"owner": None,
"group": None,
"eventid": str(self.rulenumber).zfill(4) + "kerb5"},
"edu.mit.Kerberos.kadmind.launchd":
{"path": "/Library/Preferences/edu.mit.Kerberos.kadmind.launchd",
"remove": True,
"content": None,
"permissions": None,
"owner": None,
"group": None,
"eventid": str(self.rulenumber).zfill(4) +
"kadmind"},
}
else:
self.files = {"krb5.conf":
{"path": "/etc/krb5.conf",
"remove": False,
"content": LINUXKRB5,
"permissions": 0o644,
"owner": "root",
"group": "root",
"eventid": str(self.rulenumber).zfill(4) + "krb5"}}
self.ch = CommandHelper(self.logdispatch)
self.fh = FileHelper(self.logdispatch, self.statechglogger)
if self.environ.getosfamily() == 'linux':
self.ph = Pkghelper(self.logdispatch, self.environ)
self.filepathToConfigure = []
for filelabel, fileinfo in sorted(self.files.items()):
if fileinfo["remove"]:
msg = "Remove if present " + str(fileinfo["path"])
else:
msg = "Add or update if needed " + str(fileinfo["path"])
self.filepathToConfigure.append(msg)
self.fh.addFile(filelabel,
fileinfo["path"],
fileinfo["remove"],
fileinfo["content"],
fileinfo["permissions"],
fileinfo["owner"],
fileinfo["group"],
fileinfo["eventid"]
)
# Configuration item instantiation
datatype = "bool"
key = "CONFIGUREFILES"
instructions = "When Enabled will fix these files: " + \
str(self.filepathToConfigure)
default = True
self.ci = self.initCi(datatype, key, instructions, default)
def report(self):
'''run report actions for configure kerberos
determine compliance status of the current system
return True if compliant, False if non-compliant
:returns: self.compliant
:rtype: bool
@author: ???
@change: Breen Malmberg - 2/23/2017 - added doc string; added const checks preamble to report and fix methods
'''
self.compliant = True
self.detailedresults = ""
# UPDATE THIS SECTION IF YOU CHANGE THE CONSTANTS BEING USED IN THE RULE
constlist = [MACKRB5, LINUXKRB5]
if not self.checkConsts(constlist):
self.compliant = False
self.detailedresults = "\nPlease ensure that the constants: MACKRB5, LINUXKRB5, in localize.py, are defined and are not None. This rule will not function without them."
self.formatDetailedResults("report", self.compliant, self.detailedresults)
return self.compliant
try:
if self.environ.getosfamily() == 'linux':
packagesRpm = ["pam_krb5", "krb5-libs", "krb5-workstation",
"sssd-krb5", "sssd-krb5-common"]
packagesDeb = ["krb5-config", "krb5-user", "libpam-krb5"]
packagesSuse = ["pam_krb5", "sssd-krb5", "sssd-krb5-common",
"krb5-client", "krb5"]
if self.ph.determineMgr() == "apt-get":
self.packages = packagesDeb
elif self.ph.determineMgr() == "zypper":
self.packages = packagesSuse
else:
self.packages = packagesRpm
for package in self.packages:
if not self.ph.check(package) and self.ph.checkAvailable(package):
self.compliant = False
self.detailedresults += package + " is not installed\n"
if not self.fh.evaluateFiles():
self.compliant = False
self.detailedresults += self.fh.getFileMessage()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += str(traceback.format_exc())
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
'''run fix actions
:returns: self.rulesuccess
:rtype: bool
@author: ???
@change: Breen Malmberg - 2/23/2017 - added doc string; added checkconsts preamble to ensure
the rule does not attempt to run without requied information (from localize.py)
'''
self.rulesuccess = True
self.detailedresults = ""
self.iditerator = 0
# UPDATE THIS SECTION IF YOU CHANGE THE CONSTANTS BEING USED IN THE RULE
constlist = [MACKRB5, LINUXKRB5]
if not self.checkConsts(constlist):
fixsuccess = False
self.formatDetailedResults("fix", fixsuccess, self.detailedresults)
return fixsuccess
try:
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if self.ci.getcurrvalue():
pkgsToInstall = []
if self.environ.getosfamily() == 'linux':
for package in self.packages:
if not self.ph.check(package):
if self.ph.checkAvailable(package):
pkgsToInstall.append(package)
for package in pkgsToInstall:
if self.ph.install(package):
self.iditerator += 1
myid = iterate(self.iditerator,
self.rulenumber)
event = {"eventtype": "pkghelper",
"pkgname": package,
"startstate": "removed",
"endstate": "installed"}
self.statechglogger.recordchgevent(myid, event)
else:
self.rulesuccess = False
self.detailedresults += "Installation of " + package + " did not succeed.\n"
if not self.fh.fixFiles():
self.rulesuccess = False
self.detailedresults += self.fh.getFileMessage()
else:
self.rulesuccess = False
self.detailedresults = str(self.ci.getkey()) + " was disabled. No action was taken!"
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += str(traceback.format_exc())
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class RestrictMounting(Rule):
'''Class help text'''
def __init__(self, config, enviro, logger, statechglogger):
"""
Constructor
"""
Rule.__init__(self, config, enviro, logger, statechglogger)
self.logger = logger
self.rulenumber = 112
self.rulename = "RestrictMounting"
self.formatDetailedResults("initialize")
self.mandatory = False
self.sethelptext()
# Configuration item instantiation
datatype1 = "bool"
key1 = "RESTRICTCONSOLEACCESS"
instructions1 = "To restrict console device access, set " + \
"RESTRICTCONSOLEACCESS to True."
default1 = False
self.consoleCi = self.initCi(datatype1, key1, instructions1, default1)
datatype2 = "bool"
key2 = "DISABLEAUTOFS"
instructions2 = "To disable dynamic NFS mounting through the " + \
"autofs service, set DISABLEAUTOFS to True."
default2 = False
self.autofsCi = self.initCi(datatype2, key2, instructions2, default2)
datatype3 = "bool"
key3 = "DISABLEGNOMEAUTOMOUNT"
instructions3 = "To disable the GNOME desktop environment from " + \
"automounting devices and removable media, set " + \
"DISABLEGNOMEAUTOMOUNT to True."
default3 = False
self.gnomeCi = self.initCi(datatype3, key3, instructions3, default3)
self.guidance = ["NSA 2.2.2.1", "NSA 2.2.2.3", "NSA 2.2.2.4",
"CCE 3685-5", "CCE 4072-5", "CCE 4231-7",
"CCE-RHEL7-CCE-TBD 2.2.2.6"]
self.applicable = {"type": "white",
"family": ["linux"]}
self.iditerator = 0
self.gsettings = "/usr/bin/gsettings"
self.gconftool = "/usr/bin/gconftool-2"
self.dbuslaunch = "/usr/bin/dbus-launch"
def report(self):
''' '''
self.automountMedia = True
self.automountDrives = True
self.sec_console_perms1 = "/etc/security/console.perms.d/50-default.perms"
self.sec_console_perms2 = "/etc/security/console.perms"
self.console_perms_temppath = self.sec_console_perms2 + ".stonixtmp"
self.data = {"<console>": "tty[0-9][0-9]* vc/[0-9][0-9]* :0\.[0-9] :0",
"<xconsole>": "0\.[0-9] :0"}
self.autofspkg = "autofs"
self.autofssvc = "autofs"
self.ph = Pkghelper(self.logdispatch, self.environ)
self.sh = ServiceHelper(self.environ, self.logdispatch)
self.ch = CommandHelper(self.logdispatch)
self.compliant = True
self.detailedresults = ""
try:
if os.path.exists(self.sec_console_perms1):
current_config = readFile(self.sec_console_perms1, self.logger)
for line in current_config:
if re.search("^<[x]?console>", line, re.M):
self.compliant = False
self.detailedresults += self.sec_console_perms1 + " contains unrestricted device access\n"
break
if os.path.exists(self.sec_console_perms2):
self.editor2 = KVEditorStonix(self.statechglogger, self.logger, "conf", self.sec_console_perms2, self.console_perms_temppath, self.data, "present", "closedeq")
if not self.editor2.report():
self.compliant = False
self.detailedresults += self.sec_console_perms2 + " does not contain the correct values\n"
if self.ph.check(self.autofspkg):
if self.sh.auditService(self.autofssvc, _="_"):
self.compliant = False
self.detailedresults += "autofs is installed and enabled\n"
if os.path.exists(self.gsettings):
automountOff = False
autorunNever = False
cmd = [self.gsettings, "get", "org.gnome.desktop.media-handling",
"automount"]
self.ch.executeCommand(cmd)
if re.search("false", self.ch.getOutputString()):
automountOff = True
cmd = [self.gsettings, "get", "org.gnome.desktop.media-handling",
"autorun-never"]
self.ch.executeCommand(cmd)
if re.search("true", self.ch.getOutputString()):
autorunNever = True
debug = "autorun-never is enabled"
self.logger.log(LogPriority.DEBUG, debug)
self.automountOff = automountOff
self.autorunNever = autorunNever
if not automountOff or not autorunNever:
self.compliant = False
self.detailedresults += "GNOME automounting is enabled\n"
# check for gnome automounting
if os.path.exists(self.gconftool):
cmd = [self.gconftool, "-R", "/desktop/gnome/volume_manager"]
if os.path.exists("/desktop/gnome/volume_manager"):
self.ch.executeCommand(cmd)
retcode = self.ch.getReturnCode()
if retcode != 0:
self.compliant = False
self.detailedresults += "\nFailed to read gnome volume manager config"
output = self.ch.getOutputString()
if re.search("automount_media.*false", output):
self.automountMedia = False
if re.search("automount_drives.*false", output):
self.automountDrives = False
else:
self.automountMedia = False
self.automountDrives = False
mylist = [self.automountMedia, self.automountDrives]
if any(mylist):
self.compliant = False
self.detailedresults += "GNOME automounting is enabled\n"
# reset these directories to be owned by their respective users
dirs = ''
if os.path.exists('/run/user'):
dirs = os.listdir('/run/user')
if dirs:
for d in dirs:
# check if the directory is an integer representing a uid
if re.search('^([+-]?[1-9]\d*|0)$', d, re.IGNORECASE):
self.logger.log(LogPriority.DEBUG, "Found UID directory")
try:
os.chown('/run/user/' + d + '/dconf/user', int(d), int(d))
except Exception as errmsg:
self.logger.log(LogPriority.DEBUG, str(errmsg))
continue
else:
self.logger.log(LogPriority.DEBUG, "no directories in /run/user")
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
''' '''
self.detailedresults = ""
self.iditerator = 0
self.rulesuccess = True
success = True
consoleaccess = self.consoleCi.getcurrvalue()
autofs = self.autofsCi.getcurrvalue()
gnomeautomount = self.gnomeCi.getcurrvalue()
mylist = [consoleaccess, autofs, gnomeautomount]
try:
# if none of the CIs are enabled, skip fix
if not any(mylist):
self.detailedresults += "\nNone of the CI's were enabled. Nothing was done."
self.formatDetailedResults("fix", self.rulesuccess, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
# clear event list data
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
# if restrict console access CI is enabled, restrict console access
if self.consoleCi.getcurrvalue():
if os.path.exists(self.sec_console_perms1):
tmpfile = self.sec_console_perms1 + ".stonixtmp"
defaultPerms = open(self.sec_console_perms1, "r").read()
defaultPerms = re.sub("(<[x]?console>)", r"#\1", defaultPerms)
if writeFile(tmpfile, defaultPerms, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": self.sec_console_perms1}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.sec_console_perms1, tmpfile, myid)
os.rename(tmpfile, self.sec_console_perms1)
resetsecon(self.sec_console_perms1)
else:
success = False
self.detailedresults += "Problem writing new contents to " + \
"temporary file"
if os.path.exists(self.sec_console_perms2):
self.editor = KVEditorStonix(self.statechglogger, self.logger, "conf", self.sec_console_perms2, self.console_perms_temppath, self.data, "present", "closedeq")
self.editor.report()
if self.editor.fixables:
if self.editor.fix():
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor.setEventID(myid)
if self.editor.commit():
debug = self.sec_console_perms2 + "'s contents have been " \
+ "corrected\n"
self.logger.log(LogPriority.DEBUG, debug)
resetsecon(self.sec_console_perms2)
else:
debug = "kveditor commit not successful\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
self.detailedresults += self.sec_console_perms2 + \
" properties could not be set\n"
else:
debug = "kveditor fix not successful\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
self.detailedresults += self.sec_console_perms2 + \
" properties could not be set\n"
# if autofs CI is enabled, disable autofs
if self.autofsCi.getcurrvalue():
if self.ph.check(self.autofspkg) and \
self.sh.auditService(self.autofssvc, _="_"):
if self.sh.disableService(self.autofssvc, _="_"):
debug = "autofs service successfully disabled\n"
self.logger.log(LogPriority.DEBUG, debug)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "servicehelper", "servicename":
self.autofssvc, "startstate": "enabled",
"endstate": "disabled"}
self.statechglogger.recordchgevent(myid, event)
else:
success = False
debug = "Unable to disable autofs service\n"
self.logger.log(LogPriority.DEBUG, debug)
returnCode = 0
if self.gnomeCi.getcurrvalue():
if os.path.exists(self.gsettings):
# gsettings requires a D-Bus session bus in order to make
# any changes. This is because the dconf daemon must be
# activated using D-Bus.
if not os.path.exists(self.dbuslaunch):
self.ph.install("dbus-x11")
if os.path.exists(self.dbuslaunch):
if not self.automountOff:
cmd = [self.dbuslaunch, self.gsettings, "set",
"org.gnome.desktop.media-handling",
"automount", "false"]
self.ch.executeCommand(cmd)
returnCode = self.ch.getReturnCode()
if not returnCode:
self.iditerator += 1
myid = iterate(self.iditerator,
self.rulenumber)
event = {"eventtype": "comm", "command":
["dbus-launch", "gsettings", "set",
"org.gnome.desktop.media-handling",
"automount", "true"]}
self.statechglogger.recordchgevent(myid, event)
if not self.autorunNever:
cmd = [self.dbuslaunch, "gsettings", "set",
"org.gnome.desktop.media-handling",
"autorun-never", "true"]
self.ch.executeCommand(cmd)
returnCode += self.ch.getReturnCode()
if not self.ch.getReturnCode():
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "comm", "command":
[self.dbuslaunch, self.gsettings, "set",
"org.gnome.desktop.media-handling",
"autorun-never", "false"]}
self.statechglogger.recordchgevent(myid, event)
else:
success = False
debug = "Unable to disable GNOME automounting: " + \
"dbus-x11 is not installed"
self.logger.log(LogPriority.DEBUG, debug)
if os.path.exists(self.gconftool):
if self.automountMedia:
cmd = [self.gconftool, "--direct", "--config-source",
"xml:readwrite:/etc/gconf/gconf.xml.mandatory",
"--type", "bool", "--set",
"/desktop/gnome/volume_manager/automount_media",
"false"]
self.ch.executeCommand(cmd)
returnCode = self.ch.getReturnCode()
if not returnCode:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "comm", "command":
[self.gconftool, "--direct",
"--config-source", "xml:readwrite:" +
"/etc/gconf/gconf.xml.mandatory",
"--type", "bool", "--set",
"/desktop/gnome/volume_manager/" +
"automount_media", "true"]}
self.statechglogger.recordchgevent(myid, event)
if self.automountDrives:
cmd = [self.gconftool, "--direct", "--config-source",
"xml:readwrite:/etc/gconf/gconf.xml.mandatory",
"--type", "bool", "--set",
"/desktop/gnome/volume_manager/automount_drives",
"false"]
self.ch.executeCommand(cmd)
returnCode += self.ch.getReturnCode()
if not self.ch.getReturnCode():
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "comm", "command":
[self.gconftool, "--direct",
"--config-source", "xml:readwrite:" +
"/etc/gconf/gconf.xml.mandatory",
"--type", "bool", "--set",
"/desktop/gnome/volume_manager/" +
"automount_drives",
"true"]}
self.statechglogger.recordchgevent(myid, event)
if returnCode:
success = False
self.detailedresults += "Fix failed to disable GNOME automounting\n"
# reset these directories to be owned by their respective users
dirs = ''
if os.path.exists('/run/user'):
dirs = os.listdir('/run/user')
if dirs:
for d in dirs:
# check if the directory is an integer representing a uid
if re.search('^([+-]?[1-9]\d*|0)$', d, re.IGNORECASE):
self.logger.log(LogPriority.DEBUG, "Found UID directory")
try:
os.chown('/run/user/' + d + '/dconf/user', int(d), int(d))
except Exception as errmsg:
self.logger.log(LogPriority.DEBUG, str(errmsg))
continue
else:
self.logger.log(LogPriority.DEBUG, "no directories in /run/user")
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess, self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class AuditFirefoxUsage(Rule):
"""
This module will audit firefox browser usage to determine
if any site not listed in the APPROVEDDOMAINS CI has been visited
while running in root mode
"""
def __init__(self, config, environ, logger, statechglogger):
"""
private method to initialize the module
:param config: configuration object instance
:param environ: environment object instance
:param logger: logdispatcher object instance
:param statechglogger: statechglogger object instance
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 84
self.rulename = "AuditFirefoxUsage"
self.mandatory = True
self.rootrequired = True
self.sethelptext()
self.formatDetailedResults("initialize")
self.guidance = []
self.applicable = {'type': 'white', 'family': ['linux']}
# Configuration item instantiation
datatype = 'list'
key = 'APPROVEDDOMAINS'
instructions = """This is a list of domains which the root user is \
approved to browse."""
default = LOCALDOMAINS
if default == None:
default = ["localhost"]
elif not default:
default = ["localhost"]
self.approvedDomainsCi = self.initCi(datatype, key, instructions,
default)
datatype = 'bool'
key = 'DISABLEPROXY'
instructions = """To disable Firefox's proxy settings, ensuring that \
browsing is limited to local domains in a proxied environment, set \
DISABLEPROXY to True."""
default = True
self.ci = self.initCi(datatype, key, instructions, default)
self.ph = Pkghelper(self.logger, self.environ)
self.auditonly = True
def report(self):
"""
report the status of the rule's compliance with root-enabled firefox browsing
:returns: self.compliant - True if compliant, False if not
"""
# UPDATE THIS SECTION IF YOU CHANGE THE CONSTANTS BEING USED IN THE RULE
constlist = [LOCALDOMAINS]
if not self.checkConsts(constlist):
self.compliant = False
self.detailedresults = "\nPlease ensure that the constant: LOCALDOMAINS, in localize.py, is defined and is not None. This rule will not function without it."
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
return self.compliant
try:
self.detailedresults = ""
compliant = True
ffDirs = self.getFirefoxDirs()
urls = []
package = ""
if self.ph.checkAvailable("sqlite3"):
package = "sqlite3"
elif self.ph.checkAvailable("sqlite"):
package = "sqlite"
if not self.ph.check(package):
self.ph.install(package)
for ffDir in ffDirs:
placesPath = ffDir + "/places.sqlite"
if not os.path.exists(placesPath):
continue
ch = CommandHelper(self.logger)
command = ["/usr/bin/sqlite3", placesPath, ".tables"]
ch.executeCommand(command)
if not ch.getReturnCode() == 0:
# The version of sqlite3 on RHEL 6 cannot read these dbs.
# Instead, we will examine the file manually, looking for
# entries beginning with %\x08.
sqlBin = open(placesPath, "rb").read()
urlList = re.findall("%\x08https?://.*?/", sqlBin)
for url in urlList:
urls.append(url[2:])
else:
conn = sqlite3.connect(placesPath)
c = conn.cursor()
c.execute("SELECT host FROM moz_hosts")
results = c.fetchall()
debug = "Results of 'SELECT host FROM moz_hosts': " + \
str(results)
self.logger.log(LogPriority.DEBUG, debug)
# Results are inside of a tuple
for item in results:
urls.append(item[0])
badUrls = []
urls = list(set(urls))
if urls:
self.logger.log(LogPriority.DEBUG, "URLs found: " + str(urls))
for url in urls:
approved = self.approvedDomainsCi.getcurrvalue()
foundApproved = False
for site in approved:
if re.search(site, url):
foundApproved = True
if not foundApproved:
compliant = False
badUrls.append(url)
if badUrls:
self.detailedresults = "URLs found in root's " + \
"Firefox history that are not on the approved " + \
"list: " + ", ".join(badUrls) + "\n"
self.logger.log(LogPriority.DEBUG,
"Bad URLs found: " + str(badUrls))
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def getFirefoxDirs(self):
"""Discover the randomly-generated Firefox profile directory(ies) for the
root user.
:returns: ffDirs - List of Firefox profile directories on the system
"""
# It's possible to have several FF profiles for each user account. This
# method will therefore return a list.
ffDirs = []
homeDir = "/root"
ffParent = homeDir + "/.mozilla/firefox"
if os.path.exists(ffParent):
profileDirs = glob(ffParent + "/*.default")
debug = "Found the following Firefox profile directories: " + \
str(profileDirs)
self.logger.log(LogPriority.DEBUG, debug)
for pDir in profileDirs:
# Since we gave glob the full path, the returned list will
# have the full path for each entry
ffDirs.append(pDir)
return ffDirs
class ConfigureMACPolicy(Rule):
"""The ConfigureMACPolicy class configures either selinux or apparmor
depending on the os platform.
@change: Derek Walker - created two config items, one for enable/disable, and
another for whether the user wants to use permissive or enforcing
"""
def __init__(self, config, environ, logger, statechglogger):
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 107
self.rulename = 'ConfigureMACPolicy'
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.guidance = ['NSA(2.1.1.6)(2.4.2)', 'CCE-3977-6', 'CCE-3999-0',
'CCE-3624-4', 'CIS 1.7']
self.applicable = {'type': 'white',
'family': ['linux']}
datatype = "bool"
key = "CONFIGUREMAC"
instructions = "To prevent the configuration of a mandatory " + \
"access control policy, set the value of CONFIGUREMAC to " + \
"False. Note: The 'mandatory access control' is either SELinux " + \
"or AppArmor, depending on what is available to your current system."
default = True
self.ConfigureMAC = self.initCi(datatype, key, instructions, default)
datatype2 = "string"
key2 = "MODE"
default2 = "permissive"
instructions2 = "Valid modes for SELinux are: permissive or " + \
"enforcing\nValid modes for AppArmor are: complain or enforce"
self.modeci = self.initCi(datatype2, key2, instructions2, default2)
def report(self):
"""
:return:
"""
self.selinux = False
self.apparmor = False
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
self.sh = ServiceHelper(self.environ, self.logger)
selinux_packages = ["selinux", "libselinux", "selinux-basics"]
apparmor_packages = ["apparmor"]
self.mac_package = ""
# discover whether this system can use - or is using - selinux
# or if it should use apparmor (selinux takes precedence)
for p in selinux_packages:
if self.ph.check(p):
self.selinux = True
self.mac_package = p
break
if not self.selinux:
for p in apparmor_packages:
if self.ph.check(p):
self.apparmor = True
self.mac_package = p
break
if not bool(self.selinux or self.apparmor):
for p in selinux_packages:
if self.ph.checkAvailable(p):
self.selinux = True
self.mac_package = p
break
if not self.selinux:
for p in apparmor_packages:
if self.ph.checkAvailable(p):
self.apparmor = True
self.mac_package = p
break
self.compliant = True
self.detailedresults = ""
self.mode = str(self.modeci.getcurrvalue())
try:
if self.selinux:
if not self.reportSelinux():
self.compliant = False
elif self.apparmor:
if not self.reportApparmor():
self.compliant = False
else:
self.detailedresults += "\nCould not find either selinux or apparmor installed and nother appears to be available to this system!"
self.compliant = False
except (KeyboardInterrupt, SystemExit):
raise
except:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant, self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def set_selinux_conf_path(self):
"""
:return:
"""
# discover correct location of selinux config file
self.selinux_config_file = "/etc/sysconfig/selinux"
selinux_config_files = ["/etc/selinux/config", "/etc/sysconfig/selinux"]
for p in selinux_config_files:
if os.path.exists(p):
self.selinux_config_file = p
break
def reportSelinux(self):
"""
:return:
"""
compliant = True
conf_option_dict = {"selinux\s+status:\s+enabled": "status",
"current\s+mode:\s+" + self.mode: "mode"}
# check if selinux is installed
if not self.ph.check(self.mac_package):
compliant = False
self.detailedresults += "\nSELinux is not installed"
# check sestatus for current configuration of selinux
self.ch.executeCommand("/usr/sbin/sestatus")
output = self.ch.getOutput()
for co in conf_option_dict:
rco = re.compile(co, re.I)
if not list(filter(rco.match, output)):
compliant = False
self.detailedresults += "\nSELinux " + conf_option_dict[co] + " is not configured properly"
self.set_selinux_conf_path()
# check selinux config file for correct configuration so setting is
# persistent after reboot
selinux_tmp_file = self.selinux_config_file + ".stonixtmp"
selinux_config_dict = {"SELINUX": self.mode}
self.selinux_config_editor = KVEditorStonix(self.statechglogger, self.logger, "conf", self.selinux_config_file, selinux_tmp_file, selinux_config_dict, "present", "closedeq")
self.selinux_config_editor.report()
if self.selinux_config_editor.fixables:
compliant = False
self.detailedresults += "\nFollowing option(s) not configured correctly in " + self.selinux_config_file + " :\n" + "\n".join(self.selinux_config_editor.fixables)
return compliant
def reportApparmor(self):
"""
:return:
"""
compliant = True
aa_enabled = "Yes"
# check if apparmor is installed
if not self.ph.check(self.mac_package):
compliant = False
self.detailedresults += "\nApparmor is not installed"
# check if apparmor is enabled
self.ch.executeCommand("/usr/bin/aa-enabled")
output = self.ch.getOutputString()
if not re.search(aa_enabled, output):
compliant = False
self.detailedresults += "\nApparmor is not enabled"
# check if boot configuration for apparmor is correct
f = open("/etc/default/grub", "r")
contents = f.readlines()
f.close()
for line in contents:
if re.search("GRUB_CMDLINE_LINUX_DEFAULT=", line):
if not re.search("apparmor=1", line):
compliant = False
self.detailedresults += "\nApparmor not enabled in boot config"
elif not re.search("security=apparmor", line):
compliant = False
self.detailedresults += "\nApparmor not enabled in boot config"
break
return compliant
def fix(self):
"""
:return:
"""
self.rulesuccess = True
self.detailedresults = ""
self.iditerator = 0
try:
if self.selinux:
if not self.fixSelinux():
self.rulesuccess = False
elif self.apparmor:
if not self.fixApparmor():
self.rulesuccess = False
else:
self.rulesuccess = False
self.detailedresults += "\nNeither SELinux nor Apparmor appears to be available to this system!"
except (KeyboardInterrupt, SystemExit):
raise
except:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess, self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixSelinux(self):
"""
:return:
"""
success = True
self.iditerator = 0
activate_utility = "/usr/sbin/selinux-activate"
# install selinux package if it is not installed
if not self.ph.check(self.mac_package):
if not self.ph.install(self.mac_package):
success = False
self.detailedresults += "\nFailed to install selinux package"
else:
# if we just installed selinux, then we need to discover the correct conf path
self.set_selinux_conf_path()
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype":"pkghelper",
"pkgname":self.mac_package}
self.statechglogger.recordchgevent(myid, event)
if os.path.exists(activate_utility):
self.ch.executeCommand(activate_utility)
output = self.ch.getOutputString()
if re.search("need to reboot", output, re.I):
self.detailedresults += "\nSElinux has been configured, but you will need to reboot before selinux can become active. This rule will not report compliant until this is done."
# set enforcement mode for selinux
self.ch.executeCommand("/usr/sbin/setenforce " + self.mode)
retcode = self.ch.getReturnCode()
if retcode != 0:
success = False
self.detailedresults += "\nFailed to set selinux mode to: " + self.mode
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.selinux_config_editor.setEventID(myid)
# configure the selinux config file for persistence through reboot
if not self.selinux_config_editor.fix():
success = False
self.detailedresults += "\nFailed to fix " + self.selinux_config_file
elif not self.selinux_config_editor.commit():
success = False
self.detailedresults += "\nFailed to fix " + self.selinux_config_file
return success
def fixApparmor(self):
"""
:return:
"""
success = True
profiles_dir = "/etc/apparmor.d/"
valid_modes = ["complain", "enforce"]
grub_file = "/etc/default/grub"
tmp_grub_file = grub_file + ".stonixtmp"
# install apparmor package if not installed
if not self.ph.check(self.mac_package):
if not self.ph.install(self.mac_package):
success = False
self.detailedresults += "\nFailed to install apparmor package"
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype":"pkghelper",
"pkgname":self.mac_package}
self.statechglogger.recordchgevent(myid, event)
if not self.ph.check("apparmor-profiles"):
self.ph.install("apparmor-profiles")
if not self.ph.check("apparmor-utils"):
self.ph.install("apparmor-utils")
# set apparmor enforcement mode
if self.mode.lower() in ["complain", "permissive"]:
self.ch.executeCommand("/usr/sbin/aa-complain " + profiles_dir + "*")
retcode = self.ch.getReturnCode()
if retcode != 0:
success = False
self.detailedresults += "\nFailed to set apparmor profiles to complain mode"
elif self.mode.lower() in ["enforce", "enforcing"]:
if os.path.exists(profiles_dir):
self.ch.executeCommand("/usr/sbin/aa-enforce " + profiles_dir + "*")
retcode = self.ch.getReturnCode()
if retcode != 0:
success = False
self.detailedresults += "\nFailed to set apparmor profiles to enforce mode"
else:
self.logger.log(LogPriority.DEBUG, "apparmor profiles directory does not exist")
success = False
self.detailedresults += "\nFailed to set apparmor mode to: " + self.mode
else:
success = False
self.detailedresults += "\nPlease specify one of the following options in the MODE field:\n" + "\n".join(valid_modes)
# correct apparmor boot config
# (can't use kveditor because it can't handle appending to a config line)
if os.path.exists(grub_file):
f = open(grub_file, "r")
contents = f.readlines()
f.close()
for n, i in enumerate(contents):
if re.search("GRUB_CMDLINE_LINUX_DEFAULT=", i):
contents[n] = i.strip()[:-1]+' apparmor=1 security=apparmor"\n'
tf = open(tmp_grub_file, "w")
tf.writelines(contents)
tf.close()
self.iditerator += 1
event = {"eventtype":"conf",
"filepath":grub_file}
myid = iterate(self.iditerator, self.rulenumber)
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(grub_file, tmp_grub_file, myid)
os.rename(tmp_grub_file, grub_file)
# run update-grub to apply the new grub config
self.ch.executeCommand("/usr/sbin/update-grub")
return success
class DisableIPV6(Rule):
def __init__(self, config, environ, logger, statechglogger):
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 123
self.rulename = "DisableIPV6"
self.formatDetailedResults("initialize")
self.guidance = ["NSA 2.5.3.1"]
self.applicable = {
'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {
'Mac OS X': ['10.15', 'r', '10.15.10']
}
}
# configuration item instantiation
datatype = 'bool'
key = 'DISABLEIPV6'
instructions = "To disable this rule set the value of DISABLEIPV6 " + \
"to False."
default = False
self.ci = self.initCi(datatype, key, instructions, default)
self.iditerator = 0
self.created = False
self.created2 = False
# self.editor1: sysctl file editor
# self.editor2: network file editor
# self.editor3: sshd file editor
self.editor1, self.editor2, self.editor3 = "", "", ""
self.sh = ServiceHelper(self.environ, self.logger)
self.sethelptext()
def report(self):
try:
self.detailedresults = ""
if self.environ.getosfamily() == "linux":
self.ph = Pkghelper(self.logger, self.environ)
self.compliant = self.reportLinux()
elif self.environ.getosfamily() == "freebsd":
self.compliant = self.reportFree()
elif self.environ.getostype() == "Mac OS X":
self.compliant = self.reportMac()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
try:
if not self.ci.getcurrvalue():
return
self.detailedresults = ""
# clear out event history so only the latest fix is recorded
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if self.environ.getosfamily() == "linux":
self.rulesuccess = self.fixLinux()
elif self.environ.getosfamily() == "freebsd":
self.rulesuccess = self.fixFree()
elif self.environ.getosfamily() == "darwin":
self.rulesuccess = self.fixMac()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def reportMac(self):
self.ifaces = []
compliant = True
self.cmdhelper = CommandHelper(self.logger)
cmd = ["/usr/sbin/networksetup", "-listallnetworkservices"]
if not self.cmdhelper.executeCommand(cmd):
self.detailedresults += "Unable to run " + \
"networksetup -listallnetworkservices command\n"
return False
output = self.cmdhelper.getOutput()
for item in output:
item = item.strip()
cmd = ["/usr/sbin/networksetup", "-getinfo", item]
if not self.cmdhelper.executeCommand(cmd):
self.detailedresults += "Unable to run " + \
"networksetup -getinfo command\n"
return False
output2 = self.cmdhelper.getOutput()
for item2 in output2:
if re.search("^IPv6:", item2):
check = item2.split(":")
if check[1].strip() != "Off":
self.detailedresults += "IPV6 is not turned off " + \
"for " + item + " interface\n"
self.ifaces.append(item)
compliant = False
return compliant
def fixMac(self):
if self.ifaces:
for item in self.ifaces:
cmd = ["/usr/sbin/networksetup", "setv6off", item]
if not self.cmdhelper.executeCommand(cmd):
self.rulesuccess = False
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
'eventtype':
'comm',
'command':
['/usr/sbin/networksetup', 'setv6automatic', item]
}
self.statechglogger.recordchgevent(myid, event)
return self.rulesuccess
def reportFree(self):
compliant = True
self.editor1, self.editor2 = "", ""
directives1 = {
"ipv6_network_interfaces": "none",
"ipv6_activate_all_interfaces": "NO",
"ip6addrctl_enable": "NO",
"ip6addrctl_policy": "NO"
}
directives2 = {
"net.ipv6.conf.all.disable_ipv6": "1",
"net.ipv6.conf.default.disable_ipv6": "1",
"net.ipv6.conf.lo.disable_ipv6": "1"
}
path1 = "/etc/rc.conf"
path2 = "/etc/sysctl.conf"
tmpfile1 = "/etc/rc.conf.tmp"
tmpfile2 = "/etc/sysctl.conf.tmp"
# try and create /etc/rc.conf if doesn't exist
if not os.path.exists(path1):
if not createFile(path1, self.logger):
compliant = False
self.detailedresults += "Unable to create the file: " + \
path1 + ", so this file will not be configured, " + \
"resulting in failed compliance\n"
if os.path.exists(path1):
if not checkPerms(path1, [0, 0, 420], self.logger):
compliant = False
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
"conf", path1, tmpfile1, directives1,
"present", "closedeq")
if not self.editor1.report():
compliant = False
# try and create /etc/sysctl.conf if doesn't exist
if not os.path.exists(path2):
if not createFile(path2, self.logger):
compliant = False
self.detailedresults += "Unable to create the file: " + \
path2 + " so this file will not be configured " + \
"resulting in failed compliance\n"
if os.path.exists(path2):
if not checkPerms(path2, [0, 0, 384], self.logger):
compliant = False
self.editor2 = KVEditorStonix(self.statechglogger, self.logger,
"conf", path2, tmpfile2, directives2,
"present", "closedeq")
if not self.editor2.report():
compliant = False
else:
compliant = False
cmdhelper = CommandHelper(self.logger)
cmd = ["/sbin/ifconfig", "-a"]
if not cmdhelper.executeCommand(cmd):
return False
output = cmdhelper.getOutput()
for line in output:
line = line.strip()
if re.search("^nd6", line):
if not re.search("(.)*IFDISABLED(.)*", line):
compliant = False
return compliant
def fixFree(self):
# debug messages are used for developers, self.detailedresults
# are used for the users information
path1 = "/etc/rc.conf"
path2 = "/etc/sysctl.conf"
success = True
debug = ""
if os.path.exists(path1):
if not checkPerms(path1, [0, 0, 420], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.path, [0, 0, 420], self.logger,
self.statechglogger, myid):
success = False
if self.editor1:
if self.editor1.fixables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor1.setEventID(myid)
if not self.editor1.fix():
debug += "Kveditor unable to correct file: " + \
path1 + "\n"
self.detailedresults += "Unable to correct " + path1 + \
"\n"
success = False
elif not self.editor1.commit():
self.detailedresults += "Unable to correct " + path1 + \
"\n"
debug += "commit for kveditor1 was not successful\n"
success = False
else:
debug += "Editor2 was never created so path didn't exist \
and/or wasn't able to be created\n"
success = False
else:
self.detailedresults += path1 + " doesn't exist!\n"
debug += path1 + " doesn't exist, unble to fix file\n"
success = False
if os.path.exists(path2):
# check permissions on /etc/sysctl.conf
if not checkPerms(path2, [0, 0, 384], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
# set permissions if wrong
if not setPerms(self.path, [0, 0, 384, self.logger],
self.statechglogger, myid):
success = False
# check if editor is present
if self.editor2:
if self.editor2.fixables():
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor2.setEventID(myid)
if not self.editor2.fix():
debug += "Kveditor unable to correct file: " + \
path2 + "\n"
self.detailedresults += "Unable to correct " + path2 + \
"\n"
success = False
elif not self.editor2.commit():
self.detailedresults += "Unable to correct " + path2 + \
"\n"
debug += "commit for kveditor2 was not successful\n"
success = False
else:
debug += "Editor2 was never created so path didn't exist \
and/or wasn't able to be created\n"
success = False
else:
self.detailedresults += path2 + " doesn't exist!\n"
debug += path2 + " doesn't exist, unble to fix file\n"
success = False
# restart the network
ch = CommandHelper(self.logger)
cmd = ["/etc/rc.d/netif", "restart"]
if not ch.executeCommand(cmd):
self.detaileresults += "Unable to restart network\n"
success = False
return success
def reportLinux(self):
self.ch = CommandHelper(self.logger)
compliant = True
netwrkfile = ""
ifacefile = ""
self.modprobefiles = []
#self.modprobeOK = False
self.modprobeOK = True
sysctl = "/etc/sysctl.conf"
self.interface = {"IPV6INIT": "no", "NETWORKING_IPV6": "no"}
self.sysctls = {
"net.ipv6.conf.all.disable_ipv6": "1",
"net.ipv6.conf.default.disable_ipv6": "1"
}
self.modprobes = {
"options": ["ipv6 disable=1"],
"install": ["ipv6 /bin/true"]
}
# stig portion, check netconfig file for correct contents
if self.ph.manager == "apt-get":
nfspkg = "nfs-common"
else:
nfspkg = "nfs-utils.x86_64"
if self.ph.check(nfspkg):
if os.path.exists("/etc/netconfig"):
item1 = "udp6 tpi_clts v inet6 udp - -"
item2 = "tcp6 tpi_cots_ord v inet6 tcp - -"
contents = readFile("/etc/netconfig", self.logger)
for line in contents:
line = re.sub("\s+", " ", line.strip())
if re.search(item1, line) or re.search(item2, line):
self.detailedresults += "/etc/netconfig file contains " + \
"lines we don't want present\n"
compliant = False
# "ifconfig" has been deprecated on Debian9 and some otherd distros
# so use "ip addr" instead
# Here we check if the system is giving out ipv6 ip addresses
if os.path.exists("/sbin/ifconfig"):
cmd = ["/sbin/ifconfig"]
else:
cmd = ["/sbin/ip", "addr"]
if not self.ch.executeCommand(cmd):
compliant = False
else:
output = self.ch.getOutput()
for line in output:
if re.search("^inet6", line.strip()):
self.detailedresults += "inet6 exists in the " + \
"ifconfig output\n"
compliant = False
break
# check for ipv6 address in hostname file
if os.path.exists("/etc/hosts"):
contents = readFile("/etc/hosts", self.logger)
for line in contents:
if re.search("^#", line) or re.match("^\s*$", line):
continue
if re.search(":", line):
compliant = False
# check compliancy of /etc/sysctl.conf file
if not os.path.exists(sysctl):
self.detailedresults += "File " + sysctl + " does not exist\n"
compliant = False
else:
tmpfile = sysctl + ".tmp"
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
"conf", sysctl, tmpfile,
self.sysctls, "present", "openeq")
if not self.editor1.report():
self.detailedresults += "/etc/sysctl file doesn't contain \
the correct contents\n"
compliant = False
if not checkPerms(sysctl, [0, 0, 0o644], self.logger):
self.detailedresults += "Permissions for " + sysctl + \
"are incorrect\n"
compliant = False
# in addition to checking /etc/sysctl.conf contents we need to
# also check sysctl compliancy using the sysctl command
for key in self.sysctls:
self.ch.executeCommand("/sbin/sysctl " + key)
retcode = self.ch.getReturnCode()
output = self.ch.getOutputString()
errmsg = output + self.ch.getErrorString()
if retcode != 0:
if re.search("unknown key", errmsg):
continue
else:
self.detailedresults += "Failed to get value " + key + " using sysctl command\n"
errmsg = self.ch.getErrorString()
self.logger.log(LogPriority.DEBUG, errmsg)
compliant = False
else:
actualoutput = output.strip()
expectedoutput = key + " = " + self.sysctls[key]
if actualoutput != expectedoutput:
compliant = False
self.detailedresults += "\nsysctl output has " + \
"incorrect value: expected " + \
expectedoutput + ", found " + \
actualoutput + "\n"
# check files inside modprobe.d directory for correct contents
if os.path.exists("/etc/modprobe.d/"):
modprobefiles = glob.glob("/etc/modprobe.d/*")
for modfile in modprobefiles:
tmpfile = ""
modprobekveditor = KVEditorStonix(self.statechglogger,
self.logger, "conf", modfile,
tmpfile, self.modprobes,
"present", "space")
if modprobekveditor.report():
self.modprobeOK = True
break
if not self.modprobeOK:
self.detailedresults += "Didn't find desired contents inside files " + \
"within /etc/modprobe.d/"
compliant = False
else:
# system isn't using loadable kernel modules, not an issue
self.modprobeOK = True
# Check for existence of interface and network files to be configured
if self.ph.manager == "yum":
ifacefile = "/etc/sysconfig/network-scripts/"
if not os.path.exists(ifacefile):
ifacefile = ""
netwrkfile = "/etc/sysconfig/network"
if not os.path.exists(netwrkfile):
netwrkfile = ""
elif self.ph.manager == "zypper":
ifacefile = "/etc/sysconfig/network/"
if not os.path.exists(ifacefile):
ifacefile = ""
# go through interface directory and check each interface file
# for correct contents
if ifacefile:
dirs = glob.glob(ifacefile + '*')
for loc in dirs:
contents = []
if re.search('^' + ifacefile + 'ifcfg', loc):
if not checkPerms(loc, [0, 0, 0o644], self.logger):
compliant = False
contents = readFile(loc, self.logger)
if contents:
for key in self.interface:
found = False
for line in contents:
if re.search("^#", line) or re.match(
"^\s*$", line):
continue
if re.search("^" + key, line):
if re.search("=", line):
temp = line.split("=")
if temp[1].strip(
) == self.interface[key]:
found = True
continue
else:
found = False
break
else:
compliant = False
self.detailedresults += loc + \
" file in bad format\n"
if not found:
self.detailedresults += "contents of " + \
loc + " file is wrong\n"
compliant = False
break
else:
continue
else:
compliant = False
# check network file for correct contents
if netwrkfile:
if os.path.exists(netwrkfile):
if not checkPerms(netwrkfile, [0, 0, 0o644], self.logger):
compliant = False
tmpfile = netwrkfile + ".tmp"
self.editor2 = KVEditorStonix(self.statechglogger, self.logger,
"conf", netwrkfile, tmpfile,
self.interface, "present",
"closedeq")
if not self.editor2.report():
self.detailedresults += netwrkfile + " doesn't contain \
the correct contents\n"
compliant = False
else:
self.detailedresults += netwrkfile + " doesn't exist\n"
compliant = False
# This subpart is only for apt-get based systems
# sshd needs the inet directive for ipv6 disablement
if self.ph.manager == "apt-get":
data = {"AddressFamily": "inet"}
kvtype = "conf"
path = "/etc/ssh/sshd_config"
tmpPath = path + ".tmp"
intent = "present"
configtype = "space"
self.editor3 = KVEditorStonix(self.statechglogger, self.logger,
kvtype, path, tmpPath, data, intent,
configtype)
if not self.editor3.report():
self.detailedresults += "/etc/ssh/ssdh_config doesn't \
contain the correct contents\n"
compliant = False
return compliant
def fixLinux(self):
'''
@change: dkennel removed extraneous arg from setperms call on 864
'''
universal = "#The following lines were added by stonix\n"
debug = ""
success = True
ifacefile = ""
netwrkfile = ""
sysctl = "/etc/sysctl.conf"
blacklistfile = "/etc/modprobe.d/stonix-blacklist.conf"
# STIG portion, correct netconfig file
if self.ph.manager == "apt-get":
nfspkg = "nfs-common"
else:
nfspkg = "nfs-utils.x86_64"
# if package not installed, no need to configure it
if self.ph.check(nfspkg):
if os.path.exists("/etc/netconfig"):
filestring = ""
# we want to make sure the following two lines don't
# appear in the netconfig file
item1 = "udp6 tpi_clts v inet6 udp - -"
item2 = "tcp6 tpi_cots_ord v inet6 tcp - -"
contents = readFile("/etc/netconfig", self.logger)
for line in contents:
templine = re.sub("\s+", " ", line.strip())
# if we find the lines, skip them thus leaving them out of
# of the rewrite
if re.search(item1, templine) or re.search(
item2, templine):
continue
else:
filestring += line
tmpfile = "/etc/netconfig.tmp"
if not writeFile(tmpfile, filestring, self.logger):
success = False
else:
# record event, rename file, set perms
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": "/etc/netconfig"}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(
"/etc/netconfig", tmpfile, myid)
os.rename(tmpfile, "/etc/netconfig")
os.chown("/etc/netconfig", 0, 0)
os.chmod("/etc/netconfig", 420)
resetsecon("/etc/netconfig")
# remove any ipv6 addresses from /etc/hosts file
if os.path.exists("/etc/hosts"):
contents = readFile("/etc/hosts", self.logger)
tempstring = ""
tmpfile = "/etc/hosts.tmp"
for line in contents:
if re.search("^#", line) or re.match("^\s*$", line):
tempstring += line
continue
elif re.search(":", line):
tempstring += "#" + line
else:
tempstring += line
if writeFile(tmpfile, tempstring, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": "/etc/hosts"}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange("/etc/hosts", tmpfile,
myid)
os.rename(tmpfile, "/etc/hosts")
os.chown("/etc/hosts", 0, 0)
os.chmod("/etc/hosts", 420)
resetsecon("/etc/hosts")
else:
success = False
debug = "Unable to write to file /etc/hosts\n"
self.logger.log(LogPriority.DEBUG, debug)
# fix sysctl / tuning kernel parameters
# manually write key value pairs to /etc/sysctl.conf
created = False
if not os.path.exists(sysctl):
if createFile(sysctl, self.logger):
created = True
setPerms(sysctl, [0, 0, 0o644], self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": sysctl}
self.statechglogger.recordchgevent(myid, event)
else:
success = False
debug = "Unable to create " + sysctl + "\n"
self.logger.log(LogPriority.DEBUG, debug)
if os.path.exists(sysctl):
if not checkPerms(sysctl, [0, 0, 0o644], self.logger):
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(sysctl, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
success = False
tmpfile = sysctl + ".tmp"
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
"conf", sysctl, tmpfile,
self.sysctls, "present", "openeq")
if not self.editor1.report():
if self.editor1.fixables:
# If we did not create the file, set an event ID for the
# KVEditor's undo event
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor1.setEventID(myid)
if not self.editor1.fix():
success = False
debug = "Unable to complete kveditor fix method" + \
"for /etc/sysctl.conf file\n"
self.logger.log(LogPriority.DEBUG, debug)
elif not self.editor1.commit():
success = False
debug = "Unable to complete kveditor commit " + \
"method for /etc/sysctl.conf file\n"
self.logger.log(LogPriority.DEBUG, debug)
if not checkPerms(sysctl, [0, 0, 0o644], self.logger):
if not setPerms(self.path, [0, 0, 0o644], self.logger):
self.detailedresults += "Could not set permissions on " + \
self.path + "\n"
success = False
resetsecon(sysctl)
# here we also check the output of the sysctl command for each key
# to cover all bases
for key in self.sysctls:
if self.ch.executeCommand("/sbin/sysctl " + key):
output = self.ch.getOutputString().strip()
errmsg = output + self.ch.getErrorString()
if re.search("unknown key", errmsg):
continue
if not re.search(self.sysctls[key] + "$", output):
undovalue = output[-1]
self.ch.executeCommand("/sbin/sysctl -q -e -w " + key +
"=" + self.sysctls[key])
retcode = self.ch.getReturnCode()
if retcode != 0:
success = False
self.detailedresults += "Failed to set " + key + " = " + self.sysctls[
key] + "\n"
errmsg = self.ch.getErrorString()
self.logger.log(LogPriority.DEBUG, errmsg)
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
command = "/sbin/sysctl -q -e -w " + key + "=" + undovalue
event = {
"eventtype": "commandstring",
"command": command
}
self.statechglogger.recordchgevent(myid, event)
else:
self.detailedresults += "Unable to get value for " + key + "\n"
success = False
# at the end do a print and ignore any key errors to ensure
# the new values are read into the kernel
self.ch.executeCommand("/sbin/sysctl -q -e -p")
retcode2 = self.ch.getReturnCode()
if retcode2 != 0:
success = False
self.detailedresults += "Failed to load new sysctl configuration from config file\n"
errmsg2 = self.ch.getErrorString()
self.logger.log(LogPriority.DEBUG, errmsg2)
# We never found the correct contents in any of the modprobe.d files
# so we're going to created the stonix-blacklist file
# this file is used in other rules
if not self.modprobeOK:
created = False
tmpfile = blacklistfile + ".tmp"
modprobekveditor = KVEditorStonix(self.statechglogger, self.logger,
"conf", blacklistfile, tmpfile,
self.modprobes, "notpresent",
"space")
if not os.path.exists(blacklistfile):
# create the file and record the event as file creation
if createFile(blacklistfile, self.logger):
created = True
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "creation",
"filepath": blacklistfile
}
self.statechglogger.recordchgevent(myid, event)
if os.path.exists(blacklistfile):
if not modprobekveditor.report():
if not modprobekveditor.fix():
success = False
self.detailedresults += "Unable to correct contents in " + \
blacklistfile + "\n"
else:
# if the file was created, then we already recorded an event
# for that, so this step would get skipped
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
modprobekveditor.setEventID(myid)
if not modprobekveditor.commit():
success = False
self.detailedresults += "Unable to correct contents in " + \
blacklistfile + "\n"
# fix ifcfg (interface) files
if self.ph.manager == "yum":
ifacefile = "/etc/sysconfig/network-scripts/"
netwrkfile = "/etc/sysconfig/network"
elif self.ph.manager == "zypper":
ifacefile = "/etc/sysconfig/network/"
if ifacefile:
if os.path.exists(ifacefile):
dirs = glob.glob(ifacefile + "*")
if dirs:
for loc in dirs:
interface = {"IPV6INIT": "no", "NETWORKING_IPV6": "no"}
interface2 = {
"IPV6INIT": "no",
"NETWORKING_IPV6": "no"
}
found = False
tempstring = ""
if re.search('^' + ifacefile + 'ifcfg', loc):
filename = loc
tmpfile = filename + ".tmp"
contents = readFile(filename, self.logger)
if not checkPerms(filename, [0, 0, 420],
self.logger):
self.iditerator += 1
myid = iterate(self.iditerator,
self.rulenumber)
if not setPerms(filename, [0, 0, 420],
self.logger,
self.statechglogger, myid):
debug = "Unable to set permissions on " + \
filename + "\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
for key in interface:
found = False
for line in contents:
if re.search("^#", line) or \
re.match("^\s*$", line):
continue
if re.search("^" + key, line):
if re.search("=", line):
temp = line.split("=")
if temp[1].strip(
) == interface[key]:
if found:
continue
found = True
else:
contents.remove(line)
if found:
del interface2[key]
for line in contents:
tempstring += line
tempstring += universal
for key in interface2:
tempstring += key + "=" + interface2[key] + \
"\n"
if not writeFile(tmpfile, tempstring, self.logger):
success = False
debug = "Unable to write to file " + loc + "\n"
self.logger.log(LogPriority.DEBUG, debug)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'conf', 'filepath': filename}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(
filename, tmpfile, myid)
os.rename(tmpfile, filename)
os.chown(filename, 0, 0)
os.chmod(filename, 420)
resetsecon(filename)
elif not os.path.exists(ifacefile) and ifacefile != "":
# will not attempt to create the interface files
debug = "interface directory which holds interface \
files, doesn't exist, stonix will not attempt to make this \
directory or the files contained therein"
success = False
self.logger.log(LogPriority.DEBUG, debug)
# fix network file if it exists
if netwrkfile:
if not os.path.exists(netwrkfile):
if not createFile(netwrkfile, self.logger):
debug = "Unable to create " + netwrkfile + "file\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
else:
if not checkPerms(netwrkfile, [0, 0, 420], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(netwrkfile, [0, 0, 420], self.logger,
self.statechglogger, myid):
debug = "Unable to set permissions on " + \
netwrkfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
success = False
tmpfile = netwrkfile + ".tmp"
self.editor2 = KVEditorStonix(self.statechglogger,
self.logger, "conf",
netwrkfile, tmpfile,
self.interface, "present",
"closedeq")
if not self.editor2.report():
self.detailedresults += netwrkfile + " doesn't contain \
the correct contents\n"
if self.editor2:
if self.editor2.fixables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor2.setEventID(myid)
if not self.editor2.fix():
success = False
debug = "Unable to complete kveditor fix method" + \
"for " + netwrkfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
elif not self.editor2.commit():
success = False
debug = "Unable to complete kveditor commit " + \
"method for " + netwrkfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
os.chown(netwrkfile, 0, 0)
os.chmod(netwrkfile, 420)
resetsecon(netwrkfile)
# fix sshd_config file for apt-get systems if ssh is installed
if self.ph.manager == "apt-get":
if not os.path.exists("/etc/ssh/sshd_config"):
msg = "/etc/ssh/ssd_config doesn\'t exist. This could mean ssh \
is not installed or the file has been inadvertantly deleted. Due to the \
complexity of this file stonix will not attempt to create this file"
self.logger.log(LogPriority.DEBUG, msg)
success = False
else:
if not checkPerms("/etc/ssh/sshd_config", [0, 0, 420],
self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms("/etc/ssh/sshd_config", [0, 0, 420],
self.logger, self.statechglogger, myid):
success = False
debug = "Unable to set permissions on " + \
"/etc/ssh/sshd_config\n"
self.logger.log(LogPriority.DEBUG, debug)
if self.editor3:
if self.editor3.fixables:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor3.setEventID(myid)
if not self.editor3.fix():
success = False
debug = "Unable to complete kveditor fix method" + \
"for /etc/ssh/sshd_config file\n"
self.logger.log(LogPriority.DEBUG, debug)
elif not self.editor3.commit():
success = False
debug = "Unable to complete kveditor commit " + \
"method for /etc/ssh/sshd_config file\n"
self.logger.log(LogPriority.DEBUG, debug)
os.chown("/etc/ssh/sshd_config", 0, 0)
os.chmod("/etc/ssh/sshd_config", 420)
resetsecon("/etc/ssh/sshd_config")
return success
class DisableUbuntuDataCollection(Rule):
def __init__(self, config, environ, logger, statechglogger):
'''
:param config:
:param environ:
:param logger:
:param statechglogger:
'''
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.environ = environ
self.rulenumber = 311
self.rulename = "DisableUbuntuDataCollection"
self.mandatory = True
self.rootrequired = True
self.formatDetailedResults("initialize")
self.guidance = []
self.applicable = {'type': 'white', 'os': {'Ubuntu': ['16.04', '+']}}
self.sethelptext()
datatype = "bool"
key = "DISABLEUBUNTUDATACOLLECTION"
instructions = """To prevent the diabling of data collection from this system, set the value of DISABLEUBUNTUDATACOLLECTION to False."""
default = True
self.enabledCI = self.initCi(datatype, key, instructions, default)
def report(self):
'''Check for the existence of any of a number of data-collection
and reporting utilities on the system
report compliance status as not compliant if any exist
report compliance status as compliant if none exist
:returns: self.compliant
:rtype: bool
@author: Breen Malmberg
'''
self.detailedresults = ""
self.ph = Pkghelper(self.logger, self.environ)
self.compliant = True
self.pkgslist = ["popularity-contest", "apport", "ubuntu-report"]
self.removepkgs = []
try:
for pkg in self.pkgslist:
if self.ph.check(pkg):
self.compliant = False
self.detailedresults += "\nData collection utility: " + str(
pkg) + " is still installed"
self.removepkgs.append(pkg)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.compliant = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
'''Remove any data-collection and reporting utilities from the system
report success status as True if all are removed
report success status as False if any remain
:returns: self.rulesuccess
:rtype: bool
@author: Breen Malmberg
'''
self.detailedresults = ""
self.rulesuccess = True
self.iditerator = 0
try:
if self.enabledCI.getcurrvalue():
eventlist = self.statechglogger.findrulechanges(
self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
for pkg in self.removepkgs:
if not self.ph.remove(pkg):
self.detailedresults += "\nUnable to remove package: " + str(
pkg)
self.rulesuccess = False
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
comm = self.ph.getRemove() + pkg
event = {"eventtype": "commandstring", "command": comm}
self.statechglogger.recordchgevent(myid, event)
self.logger.log(LogPriority.DEBUG,
"Removing package: " + str(pkg))
else:
self.logger.log(LogPriority.DEBUG,
"Rule was NOT enabled. Nothing was done.")
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class SecureSNMP(Rule):
'''classdocs'''
def __init__(self, config, environ, logger, statechglogger):
'''
Constructor
'''
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.statechglogger = statechglogger
self.rulenumber = 144
self.rulename = 'SecureSNMP'
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.rootrequired = True
self.guidance = ['NSA 3.20', 'CCE 4540-1']
self.applicable = {'type': 'white',
'family': ['linux', 'solaris', 'freebsd'],
'os': {'Mac OS X': ['10.15', 'r', '10.15.10']}}
datatype = 'bool'
key = 'DISABLESNMP'
instructions = "If there is a mission-critical need for hosts at" + \
"this site to be remotely monitored by a SNMP " + \
"tool, then prevent the disabling and removal " + \
"of SNMP by setting the value of DisableSNMP " + \
"to False."
default = True
self.disablesnmp = self.initCi(datatype, key, instructions, default)
datatype2 = 'bool'
key2 = 'CONFIGURESNMP'
instructions2 = "To configure SNMP on this system, make sure " + \
"you have the value for DisableSNMP set to " + \
"False, and set the value of ConfigureSNMP to True."
default2 = True
self.configuresnmp = self.initCi(datatype2, key2, instructions2,
default2)
self.snmpdconflocations = ['/etc/snmp/conf/snmpd.conf',
'/etc/snmp/conf/snmp.conf',
'/etc/snmp/snmpd.conf',
'/etc/snmp/snmp.conf']
self.snmpv3directives = {'defContext': 'none',
'defVersion': '3',
'defAuthType': 'SHA',
'defSecurityLevel': 'authNoPriv'}
# add any other possible snmp configuration file paths from the environment
# variable SNMPCONFPATH
# .get does not throw keyerror but instead returns None if env doesn't exist
snmpconfpathstring = os.environ.get('SNMPCONFPATH')
if snmpconfpathstring:
snmpconfpathlist = snmpconfpathstring.split()
for path in snmpconfpathlist:
path = str(path).strip()
self.snmpdconflocations.append(path)
def report(self):
'''Determine which report method(s) to run and run them
:returns: bool
@author bemalmbe
'''
# defaults
self.detailedresults = ""
try:
if self.environ.getostype() == 'Mac OS X':
self.compliant = self.reportmac()
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
compliant = True
self.svchelper = ServiceHelper(self.environ, self.logger)
self.pkghelper = Pkghelper(self.logger, self.environ)
if self.disablesnmp.getcurrvalue():
if not self.reportDisableSNMP():
compliant = False
if self.configuresnmp.getcurrvalue():
if not self.reportConfigureSNMP():
compliant = False
self.compliant = compliant
except AttributeError:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.DEBUG, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
raise
except Exception as err:
self.rulesuccess = False
self.detailedresults = self.detailedresults + "\n" + str(err) + \
" - " + str(traceback.format_exc())
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def reportmac(self):
'''@author: Breen Malmberg'''
configured = True
try:
self.cmdhelper = CommandHelper(self.logger)
filepath = '/System/Library/LaunchDaemons/org.net-snmp.snmpd.plist'
if not os.path.exists(filepath):
configured = False
self.detailedresults += '\nrequired plist configuration file not found: ' + filepath
cmd = '/usr/bin/defaults read ' + filepath + ' Disabled'
self.cmdhelper.executeCommand(cmd)
output = self.cmdhelper.getOutputString()
errout = self.cmdhelper.getErrorString()
if errout:
configured = False
self.detailedresults += '\nunable to execute defaults read command, or \"Disabled\" key does not exist'
else:
if not re.search('^1', output):
configured = False
self.detailedresults += '\nsnmpd is not yet disabled'
except Exception:
raise
return configured
def reportDisableSNMP(self):
'''Determine whether SNMP service is disabled and uninstalled
:returns: bool
@author bemalmbe
'''
# defaults
secure = False
svcenabled = False
pkginstalled = False
try:
svcenabled = self.svchelper.auditService('snmpd', _="_")
pkginstalled = self.pkghelper.check('net-snmpd')
if not svcenabled and not pkginstalled:
secure = True
return secure
except AttributeError:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.DEBUG, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
return False
def reportConfigureSNMP(self):
'''Determine whether the SNMP service is securely configured
:returns: bool
@author bemalmbe
'''
# defaults
kvintent = 'present'
kvconftype = 'conf'
kvtype = 'space'
secure = True
# check to make sure perms on conf files are 640
# check to make sure ownership of conf files is root:root
# check to make sure conf files are not using weak or default community
# string and that they are not using anything other than version 3
# security model as per NSA guidance
try:
if self.reportDisableSNMP():
return True
for location in self.snmpdconflocations:
if os.path.exists(location):
perms = getOctalPerms(location)
if perms != 640:
secure = False
kvpath = location
kvtmppath = location + '.stonixtmp'
self.kvosnmp = KVEditorStonix(self.statechglogger,
self.logger, kvtype, kvpath,
kvtmppath,
self.snmpv3directives,
kvintent, kvconftype)
kvosnmpretval = self.kvosnmp.report()
if not kvosnmpretval:
secure = False
f = open(location, 'r')
contentlines = f.readlines()
f.close()
for line in contentlines:
if re.search('^group', line):
line = line.split()
if line[2] in ['v1', 'v2', 'v2c']:
secure = False
self.detailedresults += '''You are currently using an outdated security model for your SNMP configuration. Please update to model 3.'''
for line in contentlines:
if re.search('^com2sec', line):
line = line.split()
if line[3] in ['public', 'community']:
secure = False
self.detailedresults += '''You are currently using a default or weak community string.'''
for line in contentlines:
if re.search('^access', line):
line = line.split()
if line[3] in ['any', 'v1', 'v2', 'v2c']:
secure = False
self.detailedresults += '''You are currently using an outdated security model for your SNMP configuration. Please update to model 3.'''
if line[4] == 'noauth':
secure = False
self.detailedresults += '''You are currently not requiring authentication for SNMP. This is an unsecure practice. Please change to authNoPriv or authPriv.'''
return secure
except (IndexError, OSError):
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.DEBUG, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
return False
def fix(self):
'''Determine which fix method(s) to run and run them
@author bemalmbe
'''
self.detailedresults = ""
self.rulesuccess = True
try:
if self.environ.getostype() == 'Mac OS X':
if self.disablesnmp.getcurrvalue() or self.configuresnmp.getcurrvalue():
self.rulesuccess = self.fixmac()
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
if self.disablesnmp.getcurrvalue():
self.fixDisableSNMP()
if self.configuresnmp.getcurrvalue():
self.fixConfigureSNMP()
except AttributeError:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.DEBUG, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
raise
except Exception as err:
self.detailedresults = self.detailedresults + "\n" + str(err) + \
" - " + str(traceback.format_exc())
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixmac(self):
'''@author: Breen Malmberg'''
success = True
try:
defaults = '/usr/bin/defaults '
operation = 'write '
filepath = '/System/Library/LaunchDaemons/org.net-snmp.snmpd.plist '
key = 'DISABLED'
val = ' -bool true'
cmd = defaults + operation + filepath + key + val
self.cmdhelper.executeCommand(cmd)
errout = self.cmdhelper.getErrorString()
if errout:
success = False
self.detailedresults += '\ncould not set Disabled key to true in org.net-snmp.snmpd.plist'
except Exception:
raise
return success
def fixDisableSNMP(self):
'''Disable the SNMP service and uninstall the package for it
@author bemalmbe
'''
try:
if not self.reportDisableSNMP():
self.svchelper.disableService('snmpd', _="_")
self.pkghelper.remove('net-snmpd')
except AttributeError:
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.DEBUG, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
raise
def fixConfigureSNMP(self):
'''Securely configure the SNMP service. This option should be used instead
of disabling SNMP only if there is a mission-critical need for the
SNMP service to operate in the environment.
@author bemalmbe
'''
# set auth type to SHA, security model version to 3, and security level to
# authNoPriv set permissions for the SNMP conf file to 640
# change owner and group of the SNMP conf file to root and root
# admin must set up security on version 3 themselves because it is
# account-based security and they must set up their own account(s)
try:
myid = '0144001'
self.kvosnmp.setEventID(myid)
self.kvosnmp.fix()
self.kvosnmp.commit()
for location in self.snmpdconflocations:
if os.path.exists(location):
os.chmod(location, 0o640)
os.chown(location, 0, 0)
except (KeyError, OSError):
self.detailedresults = traceback.format_exc()
self.logger.log(LogPriority.DEBUG, self.detailedresults)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
raise
class DisableGUILogon(Rule):
def __init__(self, config, environ, logger, statechglogger):
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 105
self.rulename = "DisableGUILogon"
self.formatDetailedResults("initialize")
self.mandatory = False
self.applicable = {'type': 'white',
'family': ['linux']}
# Configuration item instantiation
datatype = "bool"
key = "DISABLEX"
instructions = "To enable this item, set the value of DISABLEX " + \
"to True. When enabled, this rule will disable the automatic " + \
"GUI login, and the system will instead boot to the console " + \
"(runlevel 3). This will not remove any GUI components, and the " + \
"GUI can still be started using the \"startx\" command."
default = False
self.ci1 = self.initCi(datatype, key, instructions, default)
datatype = "bool"
key = "LOCKDOWNX"
instructions = "To enable this item, set the value of LOCKDOWNX " + \
"to True. When enabled, this item will help secure X Windows by " + \
"disabling the X Font Server (xfs) service and disabling X " + \
"Window System Listening. This item should be enabled if X " + \
"Windows is disabled but will be occasionally started via " + \
"startx, unless there is a mission-critical need for xfs or " + \
"a remote display."
default = False
self.ci2 = self.initCi(datatype, key, instructions, default)
datatype = "bool"
key = "REMOVEX"
instructions = "To enable this item, set the value of REMOVEX " + \
"to True. When enabled, this item will COMPLETELY remove X " + \
"Windows from the system, and on most platforms will disable " + \
"any currently running display manager. It is therefore " + \
"recommended that this rule be run from a console session " + \
"rather than from the GUI.\nREMOVEX cannot be undone."
default = False
self.ci3 = self.initCi(datatype, key, instructions, default)
self.guidance = ["NSA 3.6.1.1", "NSA 3.6.1.2", "NSA 3.6.1.3",
"CCE 4462-8", "CCE 4422-2", "CCE 4448-7",
"CCE 4074-1"]
self.iditerator = 0
self.ph = Pkghelper(self.logger, self.environ)
self.ch = CommandHelper(self.logger)
self.sh = ServiceHelper(self.environ, self.logger)
self.myos = self.environ.getostype().lower()
self.sethelptext()
def report(self):
'''@author: Eric Ball
:param self: essential if you override this definition
:returns: bool - True if system is compliant, False if it isn't
'''
try:
compliant = True
results = ""
if os.path.exists("/bin/systemctl"):
self.initver = "systemd"
compliant, results = self.reportSystemd()
elif re.search("debian", self.myos):
self.initver = "debian"
compliant, results = self.reportDebian()
elif re.search("ubuntu", self.myos):
self.initver = "ubuntu"
compliant, results = self.reportUbuntu()
else:
self.initver = "inittab"
compliant, results = self.reportInittab()
# NSA guidance specifies disabling of X Font Server (xfs),
# however, this guidance seems to be obsolete as of RHEL 6,
# and does not apply to the Debian family.
if self.sh.auditService("xfs", _="_"):
compliant = False
results += "xfs is currently enabled\n"
xremoved = True
self.xservSecure = True
if re.search("debian|ubuntu", self.myos):
if self.ph.check("xserver-xorg-core"):
compliant = False
xremoved = False
results += "Core X11 components are present\n"
elif re.search("opensuse", self.myos):
if self.ph.check("xorg-x11-server"):
compliant = False
xremoved = False
results += "Core X11 components are present\n"
else:
if self.ph.check("xorg-x11-server-Xorg"):
compliant = False
xremoved = False
results += "Core X11 components are present\n"
# Removing X will take xserverrc with it. If X is not present, we
# do not need to check for xserverrc
if not xremoved:
self.serverrc = "/etc/X11/xinit/xserverrc"
self.xservSecure = False
if os.path.exists(self.serverrc):
serverrcText = readFile(self.serverrc, self.logger)
if re.search("opensuse", self.myos):
for line in serverrcText:
reSearch = r'exec (/usr/bin/)?X \$dspnum.*\$args'
if re.search(reSearch, line):
self.xservSecure = True
break
else:
for line in serverrcText:
reSearch = r'^exec (/usr/bin/)?X (:0 )?-nolisten tcp ("$@"|.?\$@)'
if re.search(reSearch, line):
self.xservSecure = True
break
if not self.xservSecure:
compliant = False
results += self.serverrc + " does not contain proper " \
+ "settings to disable X Window System " + \
"Listening/remote display\n"
else:
compliant = False
results += self.serverrc + " does not exist; X Window " + \
"System Listening/remote display has not " + \
"been disabled\n"
self.detailedresults = results
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults = "\n" + traceback.format_exc()
self.logger.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logger.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def reportInittab(self):
compliant = False
results = ""
inittab = "/etc/inittab"
if os.path.exists(inittab):
initData = readFile(inittab, self.logger)
for line in initData:
if line.strip() == "id:3:initdefault:":
compliant = True
break
else:
self.logger.log(LogPriority.ERROR, inittab + " not found, init " +
"system unknown")
if not compliant:
results = "inittab not set to runlevel 3; GUI logon is enabled\n"
return compliant, results
def reportSystemd(self):
compliant = True
results = ""
cmd = ["/bin/systemctl", "get-default"]
self.ch.executeCommand(cmd)
defaultTarget = self.ch.getOutputString()
if not re.search("multi-user.target", defaultTarget):
compliant = False
results = "systemd default target is not multi-user.target; " + \
"GUI logon is enabled\n"
return compliant, results
def reportDebian(self):
compliant = True
results = ""
dmlist = ["gdm", "gdm3", "lightdm", "xdm", "kdm"]
for dm in dmlist:
if self.sh.auditService(dm, _="_"):
compliant = False
results = dm + \
" is still in init folders; GUI logon is enabled\n"
return compliant, results
def reportUbuntu(self):
compliant = True
results = ""
ldmover = "/etc/init/lightdm.override"
grub = "/etc/default/grub"
if os.path.exists(ldmover):
lightdmText = readFile(ldmover, self.logger)
if not re.search("manual", lightdmText[0], re.IGNORECASE):
compliant = False
results += ldmover + ' exists, but does not contain text ' + \
'"manual". GUI logon is still enabled\n'
else:
compliant = False
results += ldmover + " does not exist; GUI logon is enabled\n"
if os.path.exists(grub):
tmppath = grub + ".tmp"
data = {"GRUB_CMDLINE_LINUX_DEFAULT": '"quiet"'}
editor = KVEditorStonix(self.statechglogger, self.logger, "conf",
grub, tmppath, data, "present", "closedeq")
if not editor.report():
compliant = False
results += grub + " does not contain the correct values: " + \
str(data)
else:
compliant = False
results += "Cannot find file " + grub
if not compliant:
results += "/etc/init does not contain proper override file " + \
"for lightdm; GUI logon is enabled\n"
return compliant, results
def fix(self):
'''@author: Eric Ball
:param self: essential if you override this definition
:returns: bool - True if fix is successful, False if it isn't
'''
try:
if not self.ci1.getcurrvalue() and not self.ci2.getcurrvalue() \
and not self.ci3.getcurrvalue():
return
success = True
self.detailedresults = ""
# Delete past state change records from previous fix
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
# If we are doing DISABLEX or REMOVEX, we want to boot to
# non-graphical multi-user mode.
if self.ci1.getcurrvalue() or self.ci3.getcurrvalue():
success &= self.fixBootMode()
# Since LOCKDOWNX depends on having X installed, and REMOVEX
# completely removes X from the system, LOCKDOWNX fix will only be
# executed if REMOVEX is not.
if self.ci3.getcurrvalue():
success &= self.fixRemoveX()
elif self.ci2.getcurrvalue():
success &= self.fixLockdownX()
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def fixBootMode(self):
success = True
if self.initver == "systemd":
cmd = ["/bin/systemctl", "set-default",
"multi-user.target"]
if not self.ch.executeCommand(cmd):
success = False
self.detailedresults += '"systemctl set-default ' \
+ 'multi-user.target" did not succeed\n'
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
commandstring = "/bin/systemctl set-default " + \
"graphical.target"
event = {"eventtype": "commandstring",
"command": commandstring}
self.statechglogger.recordchgevent(myid, event)
elif self.initver == "debian":
dmlist = ["gdm", "gdm3", "lightdm", "xdm", "kdm"]
for dm in dmlist:
cmd = ["update-rc.d", "-f", dm, "disable"]
if not self.ch.executeCommand(cmd):
self.detailedresults += "Failed to disable desktop " + \
"manager " + dm
else:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "servicehelper",
"servicename": dm,
"startstate": "enabled",
"endstate": "disabled"}
self.statechglogger.recordchgevent(myid, event)
elif self.initver == "ubuntu":
ldmover = "/etc/init/lightdm.override"
tmpfile = ldmover + ".tmp"
created = False
if not os.path.exists(ldmover):
createFile(ldmover, self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": ldmover}
self.statechglogger.recordchgevent(myid, event)
created = True
writeFile(tmpfile, "manual\n", self.logger)
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": ldmover}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(ldmover, tmpfile, myid)
os.rename(tmpfile, ldmover)
resetsecon(ldmover)
grub = "/etc/default/grub"
if not os.path.exists(grub):
createFile(grub, self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation", "filepath": grub}
self.statechglogger.recordchgevent(myid, event)
tmppath = grub + ".tmp"
data = {"GRUB_CMDLINE_LINUX_DEFAULT": '"quiet"'}
editor = KVEditorStonix(self.statechglogger, self.logger,
"conf", grub, tmppath, data,
"present", "closedeq")
editor.report()
if editor.fixables:
if editor.fix():
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
editor.setEventID(myid)
debug = "kveditor fix ran successfully\n"
self.logger.log(LogPriority.DEBUG, debug)
if editor.commit():
debug = "kveditor commit ran successfully\n"
self.logger.log(LogPriority.DEBUG, debug)
else:
error = "kveditor commit did not run " + \
"successfully\n"
self.logger.log(LogPriority.ERROR, error)
success = False
else:
error = "kveditor fix did not run successfully\n"
self.logger.log(LogPriority.ERROR, error)
success = False
cmd = "update-grub"
self.ch.executeCommand(cmd)
else:
inittab = "/etc/inittab"
tmpfile = inittab + ".tmp"
if os.path.exists(inittab):
initText = open(inittab, "r").read()
initre = r"id:\d:initdefault:"
if re.search(initre, initText):
initText = re.sub(initre, "id:3:initdefault:",
initText)
writeFile(tmpfile, initText, self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": inittab}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(inittab,
tmpfile, myid)
os.rename(tmpfile, inittab)
resetsecon(inittab)
else:
initText += "\nid:3:initdefault:\n"
writeFile(tmpfile, initText, self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "conf", "filepath": inittab}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(inittab,
tmpfile, myid)
os.rename(tmpfile, inittab)
resetsecon(inittab)
else:
self.detailedresults += inittab + " not found, no other " + \
"init system found. If you are using a supported " + \
"Linux OS, please report this as a bug\n"
return success
def fixRemoveX(self):
success = True
# Due to automatic removal of dependent packages, the full
# removal of X and related packages cannot be undone
if re.search("opensuse", self.myos):
cmd = ["zypper", "-n", "rm", "-u", "xorg-x11*", "kde*",
"xinit*"]
self.ch.executeCommand(cmd)
elif re.search("debian|ubuntu", self.myos):
xpkgs = ["unity.*", "xserver-xorg-video-ati",
"xserver-xorg-input-synaptics",
"xserver-xorg-input-wacom", "xserver-xorg-core",
"xserver-xorg", "lightdm.*", "libx11-data"]
for xpkg in xpkgs:
self.ph.remove(xpkg)
elif re.search("fedora", self.myos):
# Fedora does not use the same group packages as other
# RHEL-based OSs. Removing this package will remove the X
# Windows system, just less efficiently than using a group
self.ph.remove("xorg-x11-server-Xorg")
self.ph.remove("xorg-x11-xinit*")
else:
cmd = ["yum", "groups", "mark", "convert"]
self.ch.executeCommand(cmd)
self.ph.remove("xorg-x11-xinit")
self.ph.remove("xorg-x11-server-Xorg")
cmd2 = ["yum", "groupremove", "-y", "X Window System"]
if not self.ch.executeCommand(cmd2):
success = False
self.detailedresults += '"yum groupremove -y X Window System" command failed\n'
return success
def fixLockdownX(self):
success = True
if self.sh.disableService("xfs", _="_"):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "servicehelper",
"servicename": "xfs",
"startstate": "enabled",
"endstate": "disabled"}
self.statechglogger.recordchgevent(myid, event)
else:
success = False
self.detailedresults += "STONIX was unable to disable the " + \
"xfs service\n"
if not self.xservSecure:
serverrcString = "exec X :0 -nolisten tcp $@"
if not os.path.exists(self.serverrc):
createFile(self.serverrc, self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation",
"filepath": self.serverrc}
self.statechglogger.recordchgevent(myid, event)
writeFile(self.serverrc, serverrcString, self.logger)
else:
open(self.serverrc, "a").write(serverrcString)
return success
class RemoveSUIDGames(Rule):
def __init__(self, config, enviro, logger, statechglogger):
Rule.__init__(self, config, enviro, logger, statechglogger)
self.logger = logger
self.rulenumber = 244
self.rulename = "RemoveSUIDGames"
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.applicable = {'type': 'white', 'family': 'linux'}
# Configuration item instantiation
datatype = "bool"
key = "REMOVESUIDGAMES"
instructions = "To disable this rule, set the value of " + \
"REMOVESUIDGAMES to false."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
self.guidance = ["LANL 15.7"]
self.iditerator = 0
self.ph = Pkghelper(self.logger, self.environ)
self.gamelist = [
'atlantik', 'bomber', 'bovo', 'gnuchess', 'kapman', 'kasteroids',
'katomic', 'kbackgammon', 'kbattleship', 'kblackbox', 'kblocks',
'kbounce', 'kbreakout', 'kdiamond', 'kenolaba', 'kfouleggs',
'kfourinline', 'kgoldrunner', 'killbots', 'kiriki', 'kjumpingcube',
'klickety', 'klines', 'kmahjongg', 'kmines', 'knetwalk', 'kolf',
'kollision', 'konquest', 'kpat', 'kpoker', 'kreversi', 'ksame',
'kshisen', 'ksirk', 'ksirkskineditor', 'ksirtet', 'ksmiletris',
'ksnake', 'kspaceduel', 'ksquares', 'ksudoku', 'ktron',
'ktuberling', 'kubrick', 'kwin4', 'kwin4proc', 'lskat',
'lskatproc', 'gnome-games', 'kdegames', 'gnome-taquin'
]
def report(self):
try:
compliant = True
self.gamesfound = []
self.gamedirsfound = []
for game in self.gamelist:
if self.ph.check(game):
self.gamesfound.append(game)
compliant = False
self.detailedresults += game + " installed on system\n"
if os.path.exists("/usr/bin/" + game):
self.gamedirsfound.append("/usr/bin/" + game)
compliant = False
self.detailedresults += "/usr/bin/" + game + "path exists\n"
if (os.path.exists("/usr/games")):
usrgames = os.listdir("/usr/games")
if len(usrgames) > 0:
compliant = False
self.detailedresults += "/usr/games directory is not empty\n"
self.compliant = compliant
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
try:
if not self.ci.getcurrvalue():
return
success = True
debug = ""
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
for game in self.gamesfound:
# pkgName = self.ph.getPackageFromFile(game)
# if pkgName is not None and str(pkgName) is not "":
if self.ph.remove(game):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "pkghelper",
"pkgname": game,
"startstate": "installed",
"endstate": "removed"
}
self.statechglogger.recordchgevent(myid, event)
else:
success = False
self.detailedresults += "Unable to remove " + game + "\n"
for game in self.gamedirsfound:
#did not put state change event recording here due to python
#not sending valid return code back for success or failure
#with os.remove command therefore not knowing if successful
#to record event
if os.path.exists(game):
os.remove(game)
if os.path.exists("/usr/games/"):
if not self.__cleandir("/usr/games/"):
success = False
self.detailedresults += "Unable to remove all games from /usr/games\n"
self.rulesuccess = success
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
def __cleandir(self, directory, depth=0):
'''Recursively finds the package name for each file in a directory,
and all child directories, and uninstalls the package. Ignores links.
This is best-effort; no error checking is done for the uninstall
requests.
@param directory: Name of the directory to search
@return: False if a package name is not found for any file, True
otherwise.
@author: Eric Ball
'''
success = True
dirlist = os.listdir(directory)
for path in dirlist:
path = directory + path
if os.path.isfile(path):
pkgName = self.ph.getPackageFromFile(path)
if pkgName is not None:
if self.ph.remove(pkgName):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "pkghelper",
"pkgname": pkgName,
"startstate": "installed",
"endstate": "removed"
}
self.statechglogger.recordchgevent(myid, event)
else:
debug = "Could not remove package " + pkgName
self.logger.log(LogPriority.DEBUG, debug)
success = False
else:
debug = "Could not find package name for " + path
self.logger.log(LogPriority.DEBUG, debug)
success = False
elif os.path.isdir(path):
if depth < 6:
success &= self.__cleandir(path, depth + 1)
dirlist = os.listdir(directory)
if dirlist:
# There is a possibility that removing some packages will result in
# other packages being installed. We will attempt to remove these
# additional packages, but limit this to avoid infinite loops.
if depth < 6:
success &= self.__cleandir(directory, depth + 1)
return success
class RemoveSoftware(Rule):
"""This class removes any unnecessary software installed on the system"""
def __init__(self, config, environ, logger, statechglogger):
"""
Constructor
"""
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 91
self.rulename = "RemoveSoftware"
self.mandatory = True
self.formatDetailedResults("initialize")
self.sethelptext()
self.rootrequired = True
self.guidance = ["NSA 2.3.5.6"]
self.applicable = {'type': 'white', 'family': ['linux', 'freebsd']}
# Configuration item instantiation
datatype1 = "bool"
key1 = "REMOVESOFTWARE"
instructions1 = "To disable this rule set the value of REMOVESOFTWARE TO False."
default1 = False
self.ci = self.initCi(datatype1, key1, instructions1, default1)
datatype2 = "list"
key2 = "PACKAGES"
instructions2 = "Enter the package(s) that you wish to remove. By " + \
"default we already list packages that we recommend for removal."
default2 = [
"squid", "telnet-server", "rsh-server", "rsh", "rsh-client",
"talk", "talk-server", "talkd", "libpam-ccreds", "pam_ccreds",
"tftp-server", "tftp", "tftpd", "udhcpd", "dhcpd", "dhcp",
"dhcp-server", "yast2-dhcp-server", "vsftpd", "httpd", "dovecot",
"dovecot-imapd", "dovecot-pop3d", "snmpd", "net-snmpd", "net-snmp",
"ipsec-tools", "irda-utils", "slapd", "openldap-servers",
"openldap2", "bind9", "bind9.i386", "bind", "dnsutils",
"bind-utils", "redhat-access-insights", "insights-client"
]
self.pkgci = self.initCi(datatype2, key2, instructions2, default2)
def report(self):
"""
report whether any of the packages listed in the self.pkgci ci are installed
return False if any are installed
return True if none of them are installed
:returns: self.compliant
:rtype: bool
"""
self.detailedresults = ""
self.compliant = True
self.ph = Pkghelper(self.logger, self.environ)
packages = self.pkgci.getcurrvalue()
self.remove_packages = []
try:
if packages:
for pkg in packages:
if self.ph.check(pkg):
self.remove_packages.append(pkg)
self.detailedresults += pkg + " is installed\n"
self.compliant = False
except Exception:
self.compliant = False
self.detailedresults += traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
def fix(self):
"""
remove all software packages listed in the self.pkgci list
:returns: self.rulesuccess
:rtype: bool
"""
self.rulesuccess = True
self.detailedresults = ""
self.iditerator = 0
enabled = self.ci.getcurrvalue()
try:
if not enabled:
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
return self.rulesuccess
elif not self.remove_packages:
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
return self.rulesuccess
# Clear out event history so only the latest fix is recorded
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
for pkg in self.remove_packages:
try:
if self.ph.remove(pkg):
self.iditerator += 1
self.detailedresults += "\nRemoved package: " + str(
pkg)
myid = iterate(self.iditerator, self.rulenumber)
event = {
"eventtype": "pkghelper",
"pkgname": pkg,
"startstate": "installed",
"endstate": "removed"
}
self.statechglogger.recordchgevent(myid, event)
else:
self.rulesuccess = False
self.detailedresults += "\nFailed to remove package: " + str(
pkg)
except Exception:
continue
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
self.rulesuccess = False
self.detailedresults += traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
class PasswordExpiration(Rule):
def __init__(self, config, environ, logger, statechglogger):
Rule.__init__(self, config, environ, logger, statechglogger)
self.logger = logger
self.rulenumber = 42
self.rulename = "PasswordExpiration"
self.formatDetailedResults("initialize")
self.mandatory = True
self.sethelptext()
self.iditerator = 0
self.guidance = ["2.3.1.7"]
self.applicable = {'type': 'black', 'family': ['darwin']}
self.universal = "#The following lines were added by stonix\n"
datatype = 'bool'
key = 'PASSWORDEXPIRATION'
instructions = "To disable this rule set the value of " + \
"PASSWORDEXPIRATION to False."
default = True
self.ci = self.initCi(datatype, key, instructions, default)
self.libusercreate = False
self.libuserinstall = False
self.useraddcreate = False
self.logindefcreate = False
self.fixable, self.shadow = True, True
self.editor1, self.editor2 = "", ""
self.fixusers = []
###############################################################################
def report(self):
try:
self.detailedresults = ""
self.ch = CommandHelper(self.logger)
self.lockedpwds = '^\*LK\*|^!|^\*|^x$'
if self.environ.getosfamily() == "linux":
self.ph = Pkghelper(self.logger, self.environ)
self.specs = {"PASS_MAX_DAYS": "180",
"PASS_MIN_DAYS": "1",
"PASS_MIN_LEN": "8",
"PASS_WARN_AGE": "28"}
if self.ph.manager in ("apt-get", "zypper"):
# apt-get systems do not set min length in the same file
# as other systems(login.defs)
del self.specs["PASS_MIN_LEN"]
self.shadowfile = "/etc/shadow"
self.logdeffile = "/etc/login.defs"
self.useraddfile = "/etc/default/useradd"
self.libuserfile = "/etc/libuser.conf"
self.compliant = self.reportLinux()
elif self.environ.getosfamily() == "solaris":
self.specs = {"PASSLENGTH": "8",
"MINWEEKS": "1",
"MAXWEEKS": "26",
"WARNWEEKS": "4"}
self.shadowfile = "/etc/shadow"
self.logdeffile = "/etc/default/passwd"
self.compliant = self.reportSolaris()
elif self.environ.getosfamily() == "freebsd":
self.specs = {"warnpassword": "******",
"minpasswordlen": "8",
"passwordtime": "180d"}
self.shadowfile = "/etc/master.passwd"
self.loginfile = "/etc/login.conf"
self.compliant = self.reportFreebsd()
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("report", self.compliant,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.compliant
###############################################################################
def reportLinux(self):
compliant1 = self.checklogindefs()
compliant2 = self.chkShadow()
compliant3 = self.chkUserAdd()
compliant4 = self.checklibuser()
if compliant1 and compliant2 and compliant3 and compliant4:
return True
else:
return False
###############################################################################
def reportSolaris(self):
compliant1 = self.checklogindefs()
compliant2 = self.chkShadow()
if compliant1 and compliant2:
return True
else:
return False
###############################################################################
def reportFreebsd(self, specs):
compliant1 = self.chkPasswd()
compliant2 = self.chkLogin(specs)
if compliant1 and compliant2:
return True
else:
return False
###############################################################################
def checklogindefs(self):
'''report method for various distros of linux and solaris'''
compliant = True
debug = ""
if not os.path.exists(self.logdeffile):
compliant = False
self.detailedresults += self.logdeffile + " file does not exist\n"
elif not checkPerms(self.logdeffile, [0, 0, 0o644], self.logger):
compliant = False
self.detailedresults += self.logdeffile + " does not have " + \
"the correct permissions. Expected 644, found " + \
str(getOctalPerms(self.logdeffile)) + ".\n"
tmpfile = self.logdeffile + ".tmp"
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
"conf", self.logdeffile, tmpfile,
self.specs, "present", "space")
if not self.editor1.report():
self.detailedresults += self.logdeffile + " does not " + \
"contain the correct contents\n"
debug = self.logdeffile + " doesn't contain the correct " + \
"contents\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
return compliant
###############################################################################
def chkShadow(self):
debug = ""
compliant = True
if os.path.exists(self.shadowfile):
if self.ph.manager == "apt-get":
statdata = os.stat(self.shadowfile)
mode = stat.S_IMODE(statdata.st_mode)
retval = getUserGroupName(self.shadowfile)
if retval[0] != "root" or retval[1] != "shadow":
compliant = False
self.detailedresults += self.shadowfile + " ownership " + \
"is not correct (either owner is not root, or " + \
"group is not shadow).\n"
if mode != 0o640:
compliant = False
self.detailedresults += self.shadowfile + " does not have " + \
"the correct permissions. Expected 640, found " + \
str(getOctalPerms(self.shadowfile)) + ".\n"
elif not checkPerms(self.shadowfile, [0, 0, 0o400], self.logger) and \
not checkPerms(self.shadowfile, [0, 0, 0], self.logger):
compliant = False
self.detailedresults += self.shadowfile + " does not have " + \
"the correct permissions. Expected 400 or 0, found " + \
str(getOctalPerms(self.shadowfile)) + ".\n"
contents = readFile(self.shadowfile, self.logger)
if self.environ.getosfamily() == "solaris" or \
self.environ.getosfamily() == "linux":
if self.environ.getosfamily() == "linux":
whichid = "/usr/bin/id"
elif self.environ.getosfamily() == "solaris":
whichid = "/usr/xpg4/bin/id"
for line in contents:
badacct = False
debug = ""
if re.search("^\#", line) or re.match("^\s*$", line):
continue
if re.search(":", line):
field = line.split(":")
cmd = [whichid, "-u", field[0]]
self.ch.executeCommand(cmd)
output = self.ch.getOutputString().strip()
error = self.ch.getError()
if error:
continue
if output:
if output.isdigit():
uid = int(output)
else:
uid = 100
else:
continue
try:
if uid >= 500 and not re.search(self.lockedpwds,
field[1]):
for i in [3, 4, 5, 6]:
if field[i]:
val = field[i]
if val.isdigit():
field[i] = int(field[i])
elif i == 6:
field[i] = 99
else:
field[i] = 0
elif i == 6:
field[i] = 99
else:
field[i] = 0
if field[3] != 1 or field[3] == "":
compliant = False
self.detailedresults += "Shadow file: " + \
"Minimum age is not equal to 1\n"
badacct = True
if field[4] > 180 or field[4] == "":
compliant = False
self.detailedresults += "Shadow file: " + \
"Expiration is not 180 or less\n"
badacct = True
if field[5] != 28 or field[5] == "":
compliant = False
self.detailedresults += "Shadow file: " + \
"Password expiration warnings are " + \
"not set to 28 days\n"
badacct = True
if field[6] != 35 or field[6] == "":
compliant = False
self.detailedresults += "Shadow file: " + \
"Account lock is not set to 35 days\n"
badacct = True
except IndexError:
compliant = False
debug = traceback.format_exc()
debug += ' Index out of range\n'
badacct = True
if debug:
self.logger.log(LogPriority.DEBUG, debug)
if badacct:
self.fixusers.append(field[0])
if self.environ.getosfamily() == 'freebsd':
for line in contents:
debug = ""
if re.search("^\#", line) or re.match('^\s*$', line):
continue
if re.search(':', line):
field = line.split(':')
message = Popen(['/usr/bin/id', '-u', field[0]],
stderr=PIPE, stdout=PIPE, shell=False)
uid = message.stdout.readline()
uid = uid.strip()
message.stdout.close()
if uid.isdigit():
uid = int(uid)
else:
uid = 100
try:
if uid >= 500 and not re.search(self.lockedpwds,
field[1]):
for i in [5, 6]:
if field[i]:
val = field[i]
if not val.isdigit():
field[i] = 0
else:
field[i] = 0
if int(field[5]) > 180 or field[5] == "":
self.shadow = False
compliant = False
debug += "expiration is not 180 or less"
if int(field[6]) != 1 or field[6] == "":
self.shadow = False
compliant = False
debug += "Account lock is not set to 1"
except IndexError:
self.shadow = False
compliant = False
debug = traceback.format_exc()
debug += ' Index out of range'
self.logger.log(LogPriority.DEBUG, debug)
if debug:
self.logger.log(LogPriority.DEBUG, debug)
else:
self.detailedresults += self.shadowfile + " does not exist\n"
compliant = False
debug = "chkShadow method is returning " + str(compliant) + \
" compliance\n"
self.logger.log(LogPriority.DEBUG, debug)
return compliant
###############################################################################
def chkUserAdd(self):
compliant = True
debug = ""
if not os.path.exists(self.useraddfile):
self.detailedresults += self.useraddfile + " file does not exist\n"
compliant = False
else:
if not checkPerms(self.useraddfile, [0, 0, 0o600], self.logger):
compliant = False
self.detailedresults += self.useraddfile + " does not have " + \
"the correct permissions. Expected 600, found " + \
str(getOctalPerms(self.useraddfile)) + ".\n"
contents = readFile(self.useraddfile, self.logger)
found = False
valcorrect = True
for line in contents:
if re.search("^\#", line) or re.match('^\s*$', line):
continue
if re.search('^INACTIVE', line.strip()) and re.search('=',
line):
found = True
temp = line.split('=')
if int(temp[1].strip()) <= -1 or int(temp[1].strip()) > 35:
valcorrect = False
break
if not found:
compliant = False
self.detailedresults += "INACTIVE key was not found in " + \
self.useraddfile + "\n"
if found and not valcorrect:
compliant = False
self.detailedresults += "INACTIVE key was found in " + \
self.useraddfile + ", but value is incorrect\n"
debug += "chkUserAdd method is returning " + str(compliant) + \
" compliance\n"
if debug:
self.logger.log(LogPriority.DEBUG, debug)
return compliant
###############################################################################
def checklibuser(self):
'''Private method to check the password hash algorithm settings in
libuser.conf.
@author: dwalker
:returns: bool
'''
compliant = True
'''check if libuser is intalled'''
if not self.ph.check("libuser"):
'''if not, check if available'''
if self.ph.checkAvailable("libuser"):
self.detailedresults += "libuser available but not installed\n"
return False
else:
'''not available, not a problem'''
return True
'''create a kveditor for file if it exists, if not, we do it in
the setlibuser method inside the fix'''
if os.path.exists(self.libuserfile):
data = {"userdefaults": {"LU_SHADOWMAX": "",
"LU_SHADOWMIN": "",
"LU_SHADOWWARNING": "",
"LU_UIDNUMBER": "",
"LU_SHADOWINACTIVE": "",
"LU_SHADOWEXPIRE": ""}}
datatype = "tagconf"
intent = "notpresent"
tmppath = self.libuserfile + ".tmp"
self.editor2 = KVEditorStonix(self.statechglogger, self.logger,
datatype, self.libuserfile,
tmppath, data, intent, "openeq")
if not self.editor2.report():
debug = "/etc/libuser.conf doesn't contain the correct " + \
"contents\n"
self.detailedresults += "/etc/libuser.conf doesn't " + \
"contain the correct contents\n"
self.logger.log(LogPriority.DEBUG, debug)
compliant = False
if not checkPerms(self.libuserfile, [0, 0, 0o644], self.logger):
self.detailedresults += "Permissions are incorrect on " + \
self.libuserfile + "\n"
compliant = False
else:
self.detailedresults += "Libuser installed but libuser " + \
"file doesn't exist\n"
compliant = False
return compliant
###############################################################################
def chkLogin(self):
compliant = True
if os.path.exists(self.loginfile):
if not checkPerms(self.loginfile, [0, 0, 0o644], self.logger):
compliant = False
self.detailedresults += self.libuserfile + " does not have " + \
"the correct permissions. Expected 644, found " + \
str(getOctalPerms(self.libuserfile)) + ".\n"
contents = readFile(self.loginfile, self.logger)
iterator1 = 0
for line in contents:
if re.search("^#", line) or re.match('^\s*$', line):
iterator1 += 1
elif re.search('^default:\\\\$', line.strip()):
found = True
temp = contents[iterator1 + 1:]
length2 = len(temp) - 1
iterator2 = 0
for line2 in temp:
if re.search('^[^:][^:]*:\\\\$', line2):
contents2 = temp[:iterator2]
break
elif iterator2 < length2:
iterator2 += 1
elif iterator2 == length2:
contents2 = temp[:iterator2]
break
else:
iterator1 += 1
if contents2:
for key in self.Fspecs:
found = False
for line in contents2:
if re.search("^#", line) or re.match('^\s*$', line):
continue
elif re.search('^:' + key, line.strip()):
if re.search('=', line):
temp = line.split('=')
if re.search(str(self.Fspecs[key]) +
'(:\\\\|:|\\\\|\s)',
temp[1]):
found = True
continue
else:
found = False
break
if not found:
compliant = False
return compliant
else:
self.detailedresults += self.loginfile + "does not exist. " + \
"Please note that the fix for this rule will not attempt " + \
"to create this file.\n"
compliant = False
debug = "chkLogin method is returning " + (compliant) + " compliance\n"
self.logger.log(LogPriority.DEBUG, debug)
return compliant
def fix(self):
try:
if not self.ci.getcurrvalue():
return
self.detailedresults = ""
# clear out event history so only the latest fix is recorded
self.iditerator = 0
eventlist = self.statechglogger.findrulechanges(self.rulenumber)
for event in eventlist:
self.statechglogger.deleteentry(event)
if self.environ.getosfamily() == "linux":
self.rulesuccess = self.fixLinux()
if self.environ.getosfamily() == "solaris":
self.rulesuccess = self.fixSolaris()
if self.environ.getosfamily() == "freebsd":
self.rulesuccess = self.fixFreebsd()
except (KeyboardInterrupt, SystemExit):
# User initiated exit
raise
except Exception:
self.rulesuccess = False
self.detailedresults += "\n" + traceback.format_exc()
self.logdispatch.log(LogPriority.ERROR, self.detailedresults)
self.formatDetailedResults("fix", self.rulesuccess,
self.detailedresults)
self.logdispatch.log(LogPriority.INFO, self.detailedresults)
return self.rulesuccess
###############################################################################
def fixLinux(self):
success1 = self.fixLogDef(self.specs)
success2 = self.fixShadow()
success3 = self.fixUserAdd()
success4 = self.setlibuser()
if success1 and success2 and success3 and success4:
return True
else:
return False
###############################################################################
def fixSolaris(self):
success1 = self.fixLogDef()
success2 = self.fixShadow()
if success1 and success2:
return True
else:
return False
###############################################################################
def fixFreebsd(self):
success1 = self.fixPasswd()
success2 = self.fixLogin()
if success1 and success2:
return True
else:
return False
###############################################################################
def fixLogDef(self, specs):
success = True
debug = ""
if not os.path.exists(self.logdeffile):
if createFile(self.logdeffile, self.logger):
self.logindefcreate = True
setPerms(self.logdeffile, [0, 0, 0o644], self.logger)
tmpfile = self.logdeffile + ".tmp"
self.editor1 = KVEditorStonix(self.statechglogger, self.logger,
"conf", self.logdeffile, tmpfile,
specs, "present", "space")
else:
self.detailedresults += "Was not able to create " + \
self.logdeffile + " file\n"
success = False
if self.logindefcreate:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation",
"filepath": self.logdeffile}
self.statechglogger.recordchgevent(myid, event)
elif not checkPerms(self.logdeffile, [0, 0, 0o644], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.logdeffile, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
debug += "permissions not correct on: " + \
self.logdeffile + "\n"
success = False
if self.editor1.fixables or self.editor1.removeables:
if not self.logindefcreate:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor1.setEventID(myid)
if not self.editor1.fix():
debug += "fixLogDef editor.fix did not complete successfully\n"
success = False
elif not self.editor1.commit():
debug += "fixLogDef editor.commit did not complete successfully\n"
success = False
os.chown(self.logdeffile, 0, 0)
os.chmod(self.logdeffile, 0o644)
resetsecon(self.logdeffile)
if debug:
self.logger.log(LogPriority.DEBUG, debug)
return success
###############################################################################
def fixShadow(self):
success = True
if not os.path.exists(self.shadowfile):
self.detailedresults += self.shadowfile + "does not exist. \
Will not perform fix on shadow file\n"
return False
if self.fixusers:
contents = readFile(self.shadowfile, self.logger)
if self.ph.manager == "apt-get":
perms = [0, 42, 0o640]
else:
perms = [0, 0, 0o400]
if not checkPerms(self.shadowfile, perms, self.logger) and \
not checkPerms(self.shadowfile, [0, 0, 0], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
setPerms(self.shadowfile, perms, self.logger,
self.statechglogger, myid)
tmpdate = strftime("%Y%m%d")
tmpdate = list(tmpdate)
date = tmpdate[0] + tmpdate[1] + tmpdate[2] + tmpdate[3] + "-" + \
tmpdate[4] + tmpdate[5] + "-" + tmpdate[6] + tmpdate[7]
for user in self.fixusers:
cmd = ["chage", "-d", date, "-m", "1", "-M", "180", "-W", "28",
"-I", "35", user]
self.ch.executeCommand(cmd)
# We have to do some gymnastics here, because chage writes directly
# to /etc/shadow, but statechglogger expects the new contents to
# be in a temp file.
newContents = readFile(self.shadowfile, self.logger)
shadowTmp = "/tmp/shadow.stonixtmp"
createFile(shadowTmp, self.logger)
writeFile(shadowTmp, "".join(newContents) + "\n", self.logger)
writeFile(self.shadowfile, "".join(contents) + "\n", self.logger)
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'conf',
'filepath': self.shadowfile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.shadowfile, shadowTmp,
myid)
shutil.move(shadowTmp, self.shadowfile)
os.chmod(self.shadowfile, perms[2])
os.chown(self.shadowfile, perms[0], perms[1])
resetsecon(self.shadowfile)
return success
###############################################################################
def fixUserAdd(self):
success = True
if not os.path.exists(self.useraddfile):
if createFile(self.useraddfile, self.logger):
self.useraddcreate = True
setPerms(self.useraddfile, [0, 0, 0o600], self.logger)
else:
self.detailedresults += self.useraddfile + \
" could not be created\n"
success = False
if self.useraddcreate:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation",
"filepath": self.useraddfile}
self.statechglogger.recordchgevent(myid, event)
if not checkPerms(self.useraddfile, [0, 0, 0o600], self.logger):
if not self.useraddcreate:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.useraddfile, [0, 0, 0o600],
self.logger, self.statechglogger, myid):
self.detailedresults += "Could not set permissions on " + \
self.useraddfile
success = False
tempstring = ""
contents = readFile(self.useraddfile, self.logger)
found = False
for line in contents:
if re.search("^\#", line) or re.match('^\s*$', line):
tempstring += line
continue
if re.search("^INACTIVE", line.strip()):
if re.search("=", line):
temp = line.split("=")
if int(temp[1].strip()) <= -1 or \
int(temp[1].strip()) > 35:
continue
else:
found = True
tempstring += line
else:
continue
elif re.search("^" + self.universal, line.strip()):
continue
else:
tempstring += line
if not found:
tempstring += "INACTIVE=35\n"
tmpfile = self.useraddfile + ".tmp"
if not writeFile(tmpfile, tempstring, self.logger):
return False
if not self.useraddcreate:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'conf',
'filepath': self.useraddfile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.useraddfile, tmpfile,
myid)
shutil.move(tmpfile, self.useraddfile)
os.chown(self.useraddfile, 0, 0)
os.chmod(self.useraddfile, 0o600)
resetsecon(self.useraddfile)
return success
###############################################################################
def setlibuser(self):
success = True
debug = ""
created = False
data = {"userdefaults": {"LU_SHADOWMAX": "",
"LU_SHADOWMIN": "",
"LU_SHADOWWARNING": "",
"LU_UIDNUMBER": "",
"LU_SHADOWINACTIVE": "",
"LU_SHADOWEXPIRE": ""}}
'''check if installed'''
if not self.ph.check("libuser"):
'''if not installed, check if available'''
if self.ph.checkAvailable("libuser"):
'''if available, install it'''
if not self.ph.install("libuser"):
self.detailedresults += "Unable to install libuser\n"
return False
else:
'''since we're just now installing it we know we now
need to create the kveditor'''
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
comm = self.ph.getRemove()
event = {"eventtype": "commandstring",
"command": comm}
self.statechglogger.recordchgevent(myid, event)
datatype = "tagconf"
intent = "notpresent"
tmppath = self.libuserfile + ".tmp"
self.editor2 = KVEditorStonix(self.statechglogger,
self.logger, datatype,
self.libuserfile, tmppath,
data, intent, "openeq")
self.editor2.report()
else:
return True
if not os.path.exists(self.libuserfile):
if not createFile(self.libuserfile, self.logger):
self.detailedresults += "Unable to create libuser file\n"
debug = "Unable to create the libuser file\n"
self.logger.log(LogPriority.DEBUG, debug)
return False
created = True
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {"eventtype": "creation",
"filepath": self.libuserfile}
self.statechglogger.recordchgevent(myid, event)
tmppath = self.libuserfile + ".tmp"
self.editor2 = KVEditorStonix(self.statechglogger, self.logger,
"tagconf", self.libuserfile,
tmppath, data,
"notpresent", "openeq")
self.editor2.report()
if not checkPerms(self.libuserfile, [0, 0, 0o644], self.logger):
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.libuserfile, [0, 0, 0o644],
self.logger, self.statechglogger, myid):
self.detailedresults += "Could not set permissions on " + \
self.libuserfile
success = False
elif not setPerms(self.libuserfile, [0, 0, 0o644], self.logger):
success = False
self.detailedresults += "Unable to set the " + \
"permissions on " + self.libuserfile + "\n"
if self.editor2.removeables:
if not created:
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
self.editor2.setEventID(myid)
if self.editor2.fix():
if self.editor2.commit():
debug += "/etc/libuser.conf has been corrected\n"
self.logger.log(LogPriority.DEBUG, debug)
os.chown(self.libuserfile, 0, 0)
os.chmod(self.libuserfile, 0o644)
resetsecon(self.libuserfile)
else:
self.detailedresults += "/etc/libuser.conf " + \
"couldn't be corrected\n"
success = False
else:
self.detailedresults += "/etc/libuser.conf couldn't " + \
"be corrected\n"
success = False
return success
###############################################################################
def fixLogin(self):
success = True
tempstring = ""
debug = ""
if not os.path.exists(self.loginfile):
self.detailedresults = self.loginfile + "does not exist. \
Will not perform fix on useradd file\n"
return False
if not checkPerms(self.loginfile, [0, 0, 0o644], self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
if not setPerms(self.loginfile, [0, 0, 0o644], self.logger,
self.statechglogger, myid):
success = False
contents = readFile(self.loginfile, self.logger)
iterator1 = 0
for line in contents:
if re.search("^#", line) or re.match('^\s*$', line):
iterator1 += 1
elif re.search('^default:\\\\$', line.strip()):
contents1 = contents[:iterator1 + 1]
temp = contents[iterator1 + 1:]
length2 = len(temp) - 1
iterator2 = 0
for line2 in temp:
if re.search('^[^:][^:]*:\\\\$', line2):
contents3 = temp[iterator2:]
contents2 = temp[:iterator2]
break
elif iterator2 < length2:
iterator2 += 1
elif iterator2 == length2:
contents2 = temp[:iterator2]
break
else:
iterator1 += 1
if contents2:
for key in self.Fspecs:
iterator = 0
found = False
for line in contents2:
if re.search("^#", line) or re.match('^\s*$', line):
iterator += 1
continue
elif re.search('^:' + key, line.strip()):
if re.search('=', line):
temp = line.split('=')
if re.search(str(self.Fspecs[key]) +
'(:\\\\|:|\\\\|\s)',
temp[1]):
iterator += 1
found = True
else:
contents2.pop(iterator)
else:
iterator += 1
if not found:
contents2.append('\t' + key + '=' + str(self.Fspecs[key]) +
':\\\\\n')
final = []
for line in contents1:
final.append(line)
for line in contents2:
final.append(line)
for line in contents3:
final.append(line)
for line in final:
tempstring += line
debug += "tempstring to be written to: " + self.loginfile + "\n"
self.logger.log(LogPriority.DEBUG, debug)
tmpfile = self.loginfile + ".tmp"
if writeFile(tmpfile, tempstring, self.logger):
self.iditerator += 1
myid = iterate(self.iditerator, self.rulenumber)
event = {'eventtype': 'conf',
'filepath': self.loginfile}
self.statechglogger.recordchgevent(myid, event)
self.statechglogger.recordfilechange(self.loginfile, tmpfile, myid)
shutil.move(tmpfile, self.loginfile)
os.chown(self.loginfile, 0, 0)
os.chmod(self.loginfile, 0o644)
resetsecon(self.loginfile)
else:
success = False
return success
