85 lines
2.2 KiB
Ruby
85 lines
2.2 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Capture
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include Msf::Auxiliary::Scanner
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def initialize
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super(
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'Name' => 'Rogue Gateway Detection: Sender',
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'Description' => %q{
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This module send a series of TCP SYN and ICMP ECHO requests
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to each internal target host, spoofing the source address of an external
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system running the rogue_recv module. This allows the system running
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the rogue_recv module to determine what external IP a given internal
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system is using as its default route.
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},
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'Author' => 'hdm',
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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['URL', 'http://www.metasploit.com/research/projects/rogue_network/'],
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]
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)
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register_options([
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OptAddress.new("EHOST", [true, "The IP address of the machine running rogue_recv"]),
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OptPort.new("RPORT", [true, "The destination port for the TCP SYN packet", 80]),
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OptPort.new("CPORT", [true, "The source port for the TCP SYN packet", 13832]),
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OptInt.new("ECHOID", [true, "The unique ICMP ECHO ID to embed into the packet", 7893]),
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])
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deregister_options('FILTER','PCAPFILE')
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end
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def run_host(ip)
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open_pcap
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pcap = self.capture
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capture_sendto(build_tcp_syn(ip), ip)
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capture_sendto(build_icmp(ip), ip)
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close_pcap
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end
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def build_tcp_syn(dst)
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p = PacketFu::TCPPacket.new
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p.ip_saddr = datastore['EHOST']
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p.ip_daddr = dst
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p.ip_ttl = 255
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p.tcp_sport = datastore['CPORT'].to_i
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p.tcp_dport = datastore['RPORT'].to_i
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p.tcp_flags.syn = 1
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p.tcp_seq = Rex::Socket.addr_atoi(dst)
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p.recalc
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p
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end
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def build_icmp(dst)
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p = PacketFu::ICMPPacket.new
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p.ip_saddr = datastore['EHOST']
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p.ip_daddr = dst
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p.ip_ttl = 255
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p.icmp_type = 8
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payload = Rex::Socket.addr_aton(dst) + [datastore['ECHOID']].pack('n') + Rex::Text.rand_text(26)
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p.payload = capture_icmp_echo_pack(datastore['ECHOID'],1,payload)
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p.recalc
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end
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end
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