def analyzeDNSRoundRobin(domain, nqueries, dns_servers, progOptions):
try:
utils.printMessage("[*] Looking for round-robin/anycast DNS", "info", progOptions)
ips_round = []
# Make x DNS queries to y DNS Servers
for x in range(0, nqueries):
for nameserver in dns_servers:
res = dns.resolver.Resolver()
res.nameservers = [nameserver]
answers = res.query(domain, 'A')
if len(answers) == 1:
ips_round.append(str(answers[0]))
ips_round = set(ips_round)
if len(ips_round) > 1:
utils.printMessage(" [+] DNS round-robin/anycast detected", "plus", progOptions)
for ip in ips_round:
utils.printMessage(" <-> Found DNS A entry: %s" % ip, "plus", progOptions)
else:
utils.printMessage(" [-] No round-robin/anycast DNS detected", "less", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
def checkLBCookie(host, port, ssl, useragent, timeout, f5enumeration, progOptions, url=""):
f5 = 0
lbdetected = ""
try:
utils.printMessage("[*] Looking for known load balancers cookies", "info", progOptions)
cookie = utils.getHTTPHeader(host, port, ssl, "set-cookie", useragent, timeout, progOptions, url)
if cookie:
# Lookup for some known cookies - Send me yours!
if re.search("BIGipServer", cookie) or re.search('\d{8,10}\.\d{1,5}\.\d{4}', cookie):
lbdetected = " [+] F5 load balancer detected"
f5 = 1
elif re.search("KEMPID=", cookie):
lbdetected = " [+] KEMP Technologies load balancer detected"
elif re.search("ROUTEID:", cookie) or re.search("sticky-session=", cookie) or re.search("BALANCEID", cookie):
lbdetected = " [+] mod_proxy_balancer load balancer detected"
elif re.search("SERVERID=", cookie):
lbdetected = " [+] HAProxy load balancer detected"
elif re.search("ACE-Insert=", cookie):
lbdetected = " [+] Cisco ACE load balancer detected"
if re.search("Cisco Acceleration", cookie):
lbdetected = " [+] Cisco ACE load balancer detected"
if lbdetected != "":
utils.printMessage(lbdetected, "plus", progOptions)
if f5:
utils.printMessage(" [*] Going to enumerate some internal IPs", "info", progOptions)
try:
for x in range(0, int(f5enumeration)):
cookie = utils.getHTTPHeader(host, port, ssl, "set-cookie", useragent, timeout, progOptions)
BIGIPCookieDecoder(cookie, progOptions)
except NameError, e:
utils.printMessage(" [-] Encoded cookie didn't have encoded info", "less", progOptions)
if lbdetected == "":
utils.printMessage(" [-] No known load balancer cookie detected", "less", progOptions)
def BIGIPCookieDecoder(cookie, progOptions):
encoded_string = re.search("\d{8,10}\.\d{1,5}\.\d{4}", cookie)
if encoded_string is not None:
encoded_string = encoded_string.group(0)
(host, port, end) = encoded_string.split('.')
# Hexadecimal details:
(a, b, c, d) = [ord(i) for i in struct.pack("<I", int(host))]
#print "HOST: 0x%02X 0x%02X 0x%02X 0x%02X\n" % (a,b,c,d)
(v) = [ord(j) for j in struct.pack("<H", int(port))]
p = "0x%02X%02X" % (v[0],v[1])
utils.printMessage(" <-> Decoded cookie: %s.%s.%s.%s:%s" % (a,b,c,d, int(p,16)), "plus", progOptions)
else:
raise NameError('F5-nodata')
def checkTTLF5(host, port, domain, timeout, progOptions):
try:
utils.printMessage("[*] Analyzing IP TTL value", "info", progOptions)
packet = sr1(IP(dst=domain)/TCP(sport=RandNum(1024,65535), dport=port), timeout=timeout)
if packet.getlayer('IP').ttl >= 230:
utils.printMessage(" [+] IP TTL is %s, so high number is common in F5 Load Balancers" %packet.getlayer('IP').ttl, "plus", progOptions)
else:
utils.printMessage(" [-] No high IP TTL received", "less", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
def analyzeServerBannerDiff(host, port, ssl, nrequests, useragent, timeout, progOptions, url=""):
servers = []
try:
utils.printMessage("[*] Looking for banner inconsistencies", "info", progOptions)
# Make x requests to get "server" header
for x in range(0,nrequests):
header = utils.getHTTPHeader(host, port, ssl, "server", useragent, timeout, progOptions, url)
if header:
servers.append(header.rstrip())
# A set is an unordered collection with no duplicate elements.
# Basic uses include membership testing and eliminating duplicate entries (Python DOC)
if len(set(servers)) > 1:
utils.printMessage(" [+] Multiple HTTP server banners found", "plus", progOptions)
for server in servers:
utils.printMessage(" <-> %s" %server, "plus", progOptions)
else:
utils.printMessage(" [-] No banner inconsistencies found", "less", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
def analyzeHTTPTimestamp(host, port, ssl, nrequests, useragent, timeout, verbose, progOptions, url=""):
try:
utils.printMessage("[*] Looking for HTTP timestamps inconsistencies", "info", progOptions)
timestamps = []
found = 0
utc_old = datetime.strptime('Thu, 03 Nov 1666 01:36:28', '%a, %d %b %Y %H:%M:%S')
# Make x requests to detect inconsistencies
for x in range(0,int(nrequests)):
# Get only 'date' header
header = utils.getHTTPHeader(host, port, ssl, "date", useragent, timeout, progOptions, url)
if header:
timestamp = re.search("(.+ \d{0,2}:\d{0,2}:\d{0,2})", header).group(1)
# Convert date header to struct_time
utc = datetime.strptime(timestamp, '%a, %d %b %Y %H:%M:%S')
# If timestamp is greater than last then it's from another host
if utc < utc_old:
found = 1
utc_old = utc
timestamps.append(utc)
if len(timestamps) == 0:
utils.printMessage(" [-] No HTTP timestamps received", "less", progOptions)
return
if not found:
utils.printMessage(" [-] No HTTP timestamps inconsitencies found", "less", progOptions)
else:
utils.printMessage(" [+] Timestamp inconsistency found", "plus", progOptions)
# Convert datetime to UNIX timestamp
for index, timestamp in enumerate(timestamps):
timestamps[index] = int(time.mktime(timestamp.timetuple()))
if verbose:
utils.printMessage(" [v] Timestamps received: %s" %str(timestamps), "verbose", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
import sys
import utils
# Exit if no arguments provided
if len(sys.argv) == 1:
print('Please add some command line arguments')
exit()
args = utils.removeNonInts(sys.argv)
for first in args:
remainingItems = args.copy()
remainingItems.remove(first)
for second in remainingItems:
otherItems = remainingItems.copy()
otherItems.remove(second)
for third in otherItems:
sum = first + second + third
if sum == 2020:
result = first * second * third
utils.printMessage("The product of " + str(first) + ", " +
str(second) + " and " + str(third) +
" is " + str(result))
exit()
utils.printMessage("No sum of three numbers equal 2020")
def analyzeIPID(domain, port, nsyn, timeout, verbose, progOptions):
conf.verb = 0
ipids = []
found = 0
try:
utils.printMessage("[*] Analyzing IPID sequence...", "info", progOptions)
# Use Scapy to make some TCP SYN requests
answers,unanswered=sr(IP(dst=domain)/TCP(sport=RandNum(1024,65535), dport=port)*nsyn, timeout=timeout)
for sent, received in answers:
ipids.append(received.getlayer('IP').id)
# Loop from first IPID through penultimate
for x, ipid in enumerate(ipids[0:-1]):
# And compare it from current position+1 until last IPID
for ipid2 in ipids[x+1:]:
if ipid > ipid2:
found = 1
if found:
utils.printMessage(" [+] IPID inconsistency found", "plus", progOptions)
if len(set(ipids)) == 1:
utils.printMessage(" [-] IPID always zero", "less", progOptions)
else:
utils.printMessage(" [+] IPID incremental", "plus", progOptions)
utils.printMessage(" [+] It's seem to be %i servers" % getNumHostsfromIPIDS(ipids), "plus", progOptions)
# Plot IPID in some axis (maybe useful for some reports)
g = pyx.graph.graphxy(width=15,height=10)
g.plot(pyx.graph.data.points(zip(range(0,nsyn), ipids), x=1, y=2))
#rint domain
fname = domain+"_ipids.jpg"
g.pipeGS(fname, device="jpeg")
#print "test"
utils.printMessage(" [+] Generated %s file with plotted IPIDS" % fname, "info", progOptions)
if verbose:
utils.printMessage(" [v] IPIDs received: %s" %str(ipids), "verbose", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
def checkMultipleDNS(domain, progOptions):
try:
utils.printMessage("[*] Checking multiple A DNS entries...", "info", progOptions)
try:
answers = dns.resolver.query(domain, 'A')
except dns.exception.DNSException:
utils.printMessage("[!] DNS lookup failed", "error", progOptions)
sys.exit()
if len(answers) > 1:
utils.printMessage(" [+] Multiple A DNS entries found", "plus", progOptions)
for rdata in answers:
utils.printMessage(" <-> %s" %rdata, "plus", progOptions)
else:
utils.printMessage(" [-] Just one DNS entry found: %s" %answers[0], "less", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
def checkTCPTimestamp(host, port, ntcp_timestamp, timeout, verbose, progOptions):
timestamps = []
timestamp_old = 1
found = 0
try:
utils.printMessage("[*] Analyzing TCP timestamps...", "info", progOptions)
# Set "Timestamp" option to avoid some firewall dropping packet
answers,unanswered=sr(IP(dst=host)/TCP(sport=RandNum(1024,65535), dport=port, options=[('Timestamp',(0,0))])*ntcp_timestamp, timeout=timeout)
for sent, received in answers:
options = received.getlayer('TCP').options
for option in options:
if option[0] == 'Timestamp':
timestamp = option[1][0]
# If timestamp is greater than last then it's from another host
if timestamp < timestamp_old and timestamp !=0:
found = 1
timestamp_old = timestamp
timestamps.append(timestamp)
if len(timestamps) == 0:
utils.printMessage(" [-] No TCP timestamps received", "less", progOptions)
return
if not found:
utils.printMessage(" [-] No TCP timestamps inconsistencies found", "less", progOptions)
else:
utils.printMessage(" [+] TCP timestamp inconsistency found", "plus", progOptions)
if verbose:
utils.printMessage(" [v] TCP timestamps received: %s" %str(timestamps), "verbose", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
gr3 = parser.add_argument_group("Update options")
gr3.add_argument('-u','--update', dest='update', action='store_true', help='update Load Balancer Finder')
checkArgs()
args = parser.parse_args()
progOptions = utils.cParams()
progOptions.set_normal_output(sys.stdout)
progOptions.set_error_output(sys.stderr)
progOptions.set_use_colours(args.colour)
progOptions.verbose = args.verbose
if args.update:
utils.printMessage("[*] Going to update Load Balancer Finder", "info", progOptions)
updater.update()
sys.exit(1)
if not os.geteuid()==0:
utils.printMessage("[-] You have to be root (scapy packet injection)", "error", progOptions)
sys.exit(0)
# Configuration parsing
cfg = ConfigParser.ConfigParser()
try:
cfg.read(args.configfile)
nsyn = int(cfg.get("packets","ipid_syn"))
nicmp_packets = int(cfg.get("packets","nicmp_packets"))
elif re.search("jnAccel", cookie):
lbdetected = " [+] jetNexus load balancer detected"
elif re.search("BARRACUDA_LB_COOKIE", cookie):
lbdetected = " [+] Barracuda load balancer detected"
elif re.search("NSC_", cookie):
lbdetected = " [+] Net Scaler load balancer detected"
elif re.search("X-RBT-Optimized", cookie):
lbdetected = " [+] Riverbed load balancer detected"
elif re.search("FGTServer", cookie):
lbdetected = " [+] Fortigate load balancer detected"
elif re.search("Coyote-", cookie):
lbdetected = " [+] CoyotePoint load balancer detected"
if lbdetected != "":
utils.printMessage(lbdetected, "plus", progOptions)
if f5:
utils.printMessage(" [*] Going to enumerate some internal IPs", "info", progOptions)
try:
for x in range(0, int(f5enumeration)):
cookie = utils.getHTTPHeader(host, port, ssl, "set-cookie", useragent, timeout, progOptions)
BIGIPCookieDecoder(cookie, progOptions)
except NameError, e:
utils.printMessage(" [-] Encoded cookie didn't have encoded info", "less", progOptions)
if lbdetected == "":
utils.printMessage(" [-] No known load balancer cookie detected", "less", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
def checkICMPTimestamp(host, timeout, nicmp_packets, verbose, progOptions):
timestamps = []
timestamp_old = 1
found = 0
try:
utils.printMessage("[*] Analyzing ICMP timestamps...", "info", progOptions)
# Use Scapy to make some ICMP Timestamp Request (Your ISP could block that or ICMP Timestamp Response)
answers,unanswered=sr(IP(dst=host)/ICMP(type=13)*nicmp_packets, timeout=timeout)
if len(answers) > 0:
for sent, received in answers:
timestamp = received.getlayer('ICMP').ts_rx
# If timestamp is greater than last then it's from another host
if timestamp < timestamp_old:
found = 1
timestamp_old = timestamp
timestamps.append(timestamp)
if not found:
utils.printMessage(" [-] No ICMP inconsistencies found", "less", progOptions)
else:
utils.printMessage(" [+] ICMP timestamp inconsistency found", "plus", progOptions)
if verbose:
utils.printMessage(" [v] IPIDs received: %s" %str(timestamps), "verbose", progOptions)
else:
utils.printMessage(" [-] No ICMP timestamp request responses", "less", progOptions)
except KeyboardInterrupt:
utils.printMessage("[!] Aborted by user...", "error", progOptions)
sys.exit()
except Exception, e:
print str(e)
sys.exit()
gr2.add_argument('-v', '--verbose', dest='verbose', default=False, action='store_true', help='show extra info about IPIDs, timpestamps, etc')
gr2.add_argument('-c', '--colours', dest='colour', default=False, action='store_true', help='coloured output')
checkArgs()
args = parser.parse_args()
progOptions = utils.cParams()
progOptions.set_normal_output(sys.stdout)
progOptions.set_error_output(sys.stderr)
progOptions.set_use_colours(args.colour)
progOptions.verbose = args.verbose
if not os.geteuid()==0:
utils.printMessage("[-] You have to be root (scapy packet injection)", "error", progOptions)
sys.exit(0)
# Configuration parsing
cfg = ConfigParser.ConfigParser()
try:
cfg.read(args.configfile)
nsyn = int(cfg.get("packets","ipid_syn"))
nicmp_packets = int(cfg.get("packets","nicmp_packets"))
tcp_timestamp = int(cfg.get("packets","tcp_timestamp"))
banner_retrieves = int(cfg.get("packets","banner_retrieves"))
cookie_retrieves = int(cfg.get("packets","cookie_retrieves"))
httptimestamp_retrieves = int(cfg.get("packets","httptimestamp_retrieves"))
socket_timeout = int(cfg.get("packets","socket_timeout"))
http_timeout = int(cfg.get("HTTP","http_timeout"))
import sys
import utils
# Exit if no arguments provided
if len(sys.argv) == 1:
print('Please add some command line arguments')
exit()
args = utils.removeNonInts(sys.argv)
for current in args:
remaining = args.copy()
remaining.remove(current)
for other in remaining:
sum = other + current
if sum == 2020:
result = other * current
utils.printMessage("The product of " + str(current) + " and " +
str(other) + " is " + str(result))
exit()
utils.printMessage("No sum of two numbers equal 2020")
