CVE-2019-13344 : Exploit Details and Defense Strategies

The CRUDLab WP Like Button plugin version 1.6.0 and below for WordPress has an authentication bypass vulnerability that allows unauthorized users to modify settings.

Understanding CVE-2019-13344

This CVE describes a security issue in the CRUDLab WP Like Button plugin for WordPress that enables attackers to change settings without authentication.

What is CVE-2019-13344?

An authentication bypass vulnerability in the CRUDLab WP Like Button plugin version 1.6.0 and earlier for WordPress allows unauthenticated users to alter settings. The vulnerability lies in the contains() function in the wp_like_button.php file, which fails to verify if the request is from an authorized user.

The Impact of CVE-2019-13344

This vulnerability permits unauthenticated users to successfully update settings, potentially leading to unauthorized changes in the plugin's behavior or configurations.

Technical Details of CVE-2019-13344

The technical aspects of the CVE provide insight into the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The contains() function in the wp_like_button.php file does not validate if the request is made by an authorized user, allowing unauthenticated users to exploit this flaw.

Affected Systems and Versions

Product: CRUDLab WP Like Button plugin
Vendor: N/A
Versions affected: 1.6.0 and below

Exploitation Mechanism

Attackers can exploit this vulnerability by utilizing specific parameters like wp-admin/admin.php?page=facebook-like-button each_page_url or code_snippet to successfully update settings.

Mitigation and Prevention

Protecting systems from CVE-2019-13344 involves immediate steps and long-term security practices.

Immediate Steps to Take

Disable or remove the vulnerable plugin version 1.6.0 and below
Monitor for any unauthorized changes in plugin settings

Long-Term Security Practices

Regularly update plugins to the latest secure versions
Implement strong authentication mechanisms to prevent unauthorized access

Patching and Updates

Check for security patches or updates provided by the plugin developer
Apply patches promptly to mitigate the vulnerability