Descrição

Do you get a lot of brute force attacks, DOS/DDOS and spam, targeting the XML-RPC interface in WordPress? You could just block xmlrpc.php access in your .htaccess file, but that will also cause much of Jetpack to stop functioning as expected. Jetpack is based off a two-way communication between your server and Automattic’s servers, and that requires your xmlrpc.php to be accessible from Automattic’s end.

This WordPress plugin will block access to xmlrpc.php from everywhere, except the JetPack/Automattic’s subnets. On a regular basis, the plugin will poll ARIN and update your .htaccess to allow the subnets that belongs to AUTOM-93 (which is Automattic, Inc.).

Actions and filters

Use the following actions and filters to alter the plugin’s functionality.
You can easily allow access for other organizations and IP addresses, using the filters.

action: stop_xmlrpc_attack_generate_htaccess

Trigger this action to generate a new .htaccess file.
This action is triggered at plugin activation, by WordPress cron,
and when pushing the “update” button in admin.

do_action( 'stop_xmlrpc_attack_generate_htaccess' );

action: stop_xmlrpc_attack_remove_htaccess

Trigger this action to remove our block from the .htaccess file.
This action is triggered at plugin deactivation.

do_action( 'stop_xmlrpc_attack_remove_htaccess' );

action: stop_xmlrpc_attack_flush_cache

Data from ARIN is cached for 24 hours. This will flush the cache,
forcing fresh data on next .htaccess re-generation.

To force a new .htaccess with the latest ARIN data, do:

do_action( 'stop_xmlrpc_attack_flush_cache' );
do_action( 'stop_xmlrpc_attack_generate_htaccess' );

filter: stop_xmlrpc_attack_on_file

Array of files to block in .htaccess. Defaults to array(‘xmlrpc.php’);

filter: stop_xmlrpc_attack_whitelist_arin_organizations

Array of ARIN organizations. Defaults to array(‘AUTOM-93’);

filter: stop_xmlrpc_attack_whitelist_cidrs

Array of all CIDRs to be whitelisted. Defauls to all subnets we got from ARIN, plus loopback (127.0.0.1) and private networks (10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16).

filter: stop_xmlrpc_attack_begin_block

The string which marks the beginning of our block in .htaccess.

filter: stop_xmlrpc_attack_end_block

The string which marks the ending of our block in .htaccess.

filter: stop_xmlrpc_attack_htaccess_block

The very content in our .htaccess block.