CVE-2022-25274 : Exploit Details and Defense Strategies

Drupal 9.3 implemented a generic entity access API for entity revisions that was not completely integrated with existing permissions, potentially leading to access bypass for certain users. This vulnerability affects sites using Drupal's revision system.

Understanding CVE-2022-25274

This section provides detailed insights into CVE-2022-25274.

What is CVE-2022-25274?

Drupal 9.3's entity access API for entity revisions was not fully integrated with permissions, enabling potential access bypass for users with general revision access but without access to specific items of node and media content.

The Impact of CVE-2022-25274

The vulnerability could allow certain users to bypass access restrictions, potentially compromising the security and confidentiality of node and media content on affected Drupal sites.

Technical Details of CVE-2022-25274

Explore the technical aspects of CVE-2022-25274 below.

Vulnerability Description

The issue arises from the incomplete integration of the entity access API for entity revisions with existing permissions, leading to a loophole in access control mechanisms.

Affected Systems and Versions

Drupal Core version 9.3 is affected by this vulnerability, specifically versions prior to 9.3.12.

Exploitation Mechanism

Attackers with general revision access can exploit this vulnerability to access node and media content without the required individual item permissions.

Mitigation and Prevention

Learn how to mitigate and prevent exploitation of CVE-2022-25274.

Immediate Steps to Take

Site administrators should update Drupal Core to version 9.3.12 or above to patch the vulnerability and prevent unauthorized access to content.

Long-Term Security Practices

Implement strict access controls and regularly review and update permissions to mitigate the risk of unauthorized access.

Patching and Updates

Stay informed about security updates from Drupal and promptly apply patches to ensure the security of your Drupal site.