Disable XML-RPC-API

Description

Protect your website from xmlrpc brute-force attacks,DOS and DDOS attacks, this plugin disables the XML-RPC and trackbacks-pingbacks on your WordPress website.

PLUGIN FEATURES
(These are options you can enable or disable each one)

• Disable access to xmlrpc.php file using .httacess file
• Automatically change htaccess file permission to read-only (0444)
• Disable X-pingback to minimize CPU usage
• Disable selected methods from XML-RPC
• Remove pingback-ping link from header
• Disable trackbacks and pingbacks to avoid spammers and hackers
• Rename XML-RPC slug to whatever you want
• Black list IPs for XML-RPC
• White list IPs for XML-RPC
• Some options to speed-up your wordpress website
• Disable JSON REST API
• Hide WordPress Version
• Disable built-in WordPress file editor
• Disable wlw manifest
• And some other options

What is XMLRPC

XML-RPC, or XML Remote Procedure Call is a protocol which uses XML to encode its calls and HTTP as a transport mechanism.
Beginning in WordPress 3.5, XML-RPC is enabled by default. Additionally, the option to disable/enable XML-RPC was removed. For various reasons, site owners may wish to disable this functionality. This plugin provides an easy way to do so.

Why you should disable XML-RPC
Xmlrpc has two main weaknesses

• Brute force attacks:
  Attackers try to login to WordPress using xmlrpc.php with as many username/password combinations as they can enter. A method within xmlrpc.php allows the attacker to use a single command (system.multicall) to guess hundreds of passwords. Daniel Cid at Sucuri described it well in October 2015: “With only 3 or 4 HTTP requests, the attackers could try thousands of passwords, bypassing security tools that are designed to look and block brute force attempts.”
• Denial of Service Attacks via Pingback:
  Back in 2013, attackers sent Pingback requests through xmlrpc.php of approximately 2500 WordPress sites to “herd (these sites) into a voluntary botnet,” according to Gur Schatz at Incapsula. “This gives any attacker a virtually limitless set of IP addresses to Distribute a Denial of Service attack across a network of over 100 million WordPress sites, without having to compromise them.”

Technical details