CVE-2022-25275 : What You Need to Know

A detailed overview of CVE-2022-25275 affecting Drupal Core.

Understanding CVE-2022-25275

This section delves into the vulnerability, impact, technical details, and mitigation steps of CVE-2022-25275.

What is CVE-2022-25275?

CVE-2022-25275 affects Drupal Core's Image module by not correctly checking access to image files outside the standard public files directory when generating derivative images using image styles. The vulnerability arises from additional file systems provided by contributed modules.

The Impact of CVE-2022-25275

The vulnerability leads to information disclosure as access to non-public files is not adequately verified, potentially exposing sensitive information. This impact is limited to sites with specific configuration settings.

Technical Details of CVE-2022-25275

Explore the specifics of the vulnerability.

Vulnerability Description

The Image module in Drupal Core fails to properly validate access to image files stored in non-standard public directories, potentially exposing sensitive data.

Affected Systems and Versions

Drupal Core 9.4 versions less than 9.4.3
Drupal Core 9.3 versions less than 9.3.19
Drupal Core 7 versions less than 7.91

Exploitation Mechanism

Exploiting this vulnerability involves circumventing access controls to non-public image files, which are not adequately verified by the Image module.

Mitigation and Prevention

Learn how to protect your system from CVE-2022-25275.

Immediate Steps to Take

Ensure Drupal Core is updated to the latest version that includes the security patch.
Review and adjust configuration settings related to image derivatives to prevent unauthorized access.

Long-Term Security Practices

Implement rigorous access control policies, conduct regular security audits, and stay informed about Drupal security updates.

Patching and Updates

Apply the latest security release provided by Drupal Core to address CVE-2022-25275.