CVE-2017-6379 : Exploit Details and Defense Strategies

Drupal Core versions prior to 8.2.7 had a vulnerability that allowed attackers to disable specific blocks on a website by exploiting certain administrative routes lacking CSRF protection.

Understanding CVE-2017-6379

In March 2017, CVE-2017-6379 was published, highlighting a security issue in Drupal Core versions before 8.2.7.

What is CVE-2017-6379?

In Drupal 8.2.x versions before 8.2.7, specific administrative routes were vulnerable to CSRF attacks, enabling attackers to disable blocks on websites.
Exploiting this vulnerability required knowledge of the block ID, reducing its overall impact.

The Impact of CVE-2017-6379

Attackers could exploit the CSRF vulnerability to disable specific blocks on Drupal websites, potentially affecting site functionality and user experience.

Technical Details of CVE-2017-6379

Drupal Core's vulnerability in versions before 8.2.7 had the following technical aspects:

Vulnerability Description

Lack of CSRF protection on certain administrative routes in Drupal 8.2.x versions before 8.2.7.

Affected Systems and Versions

Product: Drupal Core
Vendor: Drupal
Affected Version: 8.2.x versions before 8.2.7

Exploitation Mechanism

Attackers could exploit the CSRF vulnerability to disable specific blocks on Drupal websites.

Mitigation and Prevention

Steps to address and prevent CVE-2017-6379:

Immediate Steps to Take

Update Drupal Core to version 8.2.7 or later to patch the CSRF vulnerability.
Monitor and restrict access to administrative functions to prevent unauthorized changes.

Long-Term Security Practices

Regularly update Drupal Core and all installed modules to mitigate potential vulnerabilities.
Educate users on best practices to prevent CSRF attacks and maintain website security.

Patching and Updates

Apply security patches promptly to ensure Drupal Core and associated modules are up to date and protected against known vulnerabilities.