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Drupal core - Moderately critical - Information Disclosure - SA-CORE-2022-012

Project: 

Drupal core

Date: 

2022-July-20

Security risk: 

Moderately critical 13∕25 AC:None/A:None/CI:Some/II:None/E:Theoretical/TD:Uncommon

Vulnerability: 

Information Disclosure

Affected versions: 

>=7.0 <7.91 || >= 8.0.0 <9.3.19 || >= 9.4.0 <9.4.3

CVE IDs: 

CVE-2022-25275

Description: 

In some situations, the Image module does not correctly check access to image files not stored in the standard public files directory when generating derivative images using the image styles system.

Access to a non-public file is checked only if it is stored in the "private" file system. However, some contributed modules provide additional file systems, or schemes, which may lead to this vulnerability.

This vulnerability is mitigated by the fact that it only applies when the site sets (Drupal 9) $config['image.settings']['allow_insecure_derivatives'] or (Drupal 7) $conf['image_allow_insecure_derivatives'] to TRUE. The recommended and default setting is FALSE, and Drupal core does not provide a way to change that in the admin UI.

Some sites may require configuration changes following this security release. Review the release notes for your Drupal version if you have issues accessing files or image styles after updating.

Solution: 

Install the latest version:

All versions of Drupal 9 prior to 9.3.x are end-of-life and do not receive security coverage. Note that Drupal 8 has reached its end of life.

Reported By: 

Fixed By: 

About

Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.