metasploit-framework/modules/auxiliary/scanner/rogue/rogue_send.rb

103 lines
2.4 KiB
Ruby

##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
require 'racket'
class Metasploit3 < Msf::Auxiliary
include Msf::Exploit::Capture
include Msf::Auxiliary::Scanner
def initialize
super(
'Name' => 'Rogue Gateway Detection: Sender',
'Description' => %q{
This module send a series of TCP SYN and ICMP ECHO requests
to each internal target host, spoofing the source address of an external
system running the rogue_recv module. This allows the system running
the rogue_recv module to determine what external IP a given internal
system is using as its default route.
},
'Author' => 'hdm',
'License' => MSF_LICENSE,
'Version' => '$Revision$',
'References' =>
[
['URL', 'http://www.metasploit.com/research/projects/rogue_network/'],
]
)
register_options([
OptAddress.new("EHOST", [true, "The IP address of the machine running rogue_recv"]),
OptPort.new("RPORT", [true, "The destination port for the TCP SYN packet", 80]),
OptPort.new("CPORT", [true, "The source port for the TCP SYN packet", 13832]),
OptInt.new("ECHOID", [true, "The unique ICMP ECHO ID to embed into the packet", 7893]),
])
deregister_options('FILTER','PCAPFILE')
end
def run_host(ip)
open_pcap
pcap = self.capture
capture_sendto(build_tcp_syn(ip), ip)
capture_sendto(build_icmp(ip), ip)
close_pcap
end
def build_tcp_syn(dst)
n = Racket::Racket.new
n.l3 = Racket::L3::IPv4.new
n.l3.src_ip = datastore['EHOST']
n.l3.dst_ip = dst
n.l3.protocol = 0x6
n.l3.id = rand(0x10000)
n.l3.ttl = 255
n.l4 = Racket::L4::TCP.new
n.l4.src_port = datastore['CPORT'].to_i
n.l4.seq = Rex::Socket.addr_atoi(dst)
n.l4.dst_port = datastore['RPORT'].to_i
n.l4.flag_syn = 1
n.l4.fix!(n.l3.src_ip, n.l3.dst_ip, "")
n.pack
end
def build_icmp(dst)
n = Racket::Racket.new
n.l3 = Racket::L3::IPv4.new
n.l3.src_ip = datastore['EHOST']
n.l3.dst_ip = dst
n.l3.protocol = 0x1
n.l3.id = rand(0x10000)
n.l3.ttl = 255
n.l4 = Racket::L4::ICMPEcho.new
n.l4.id = datastore['ECHOID']
n.l4.sequence = 1
n.l4.payload = Rex::Socket.addr_aton(dst) + [datastore['ECHOID']].pack('n') + Rex::Text.rand_text(26)
n.l4.fix!
n.pack
end
end