SA-CONTRIB-2012-022 - CDN - Information disclosure

CVE: CVE-2012-1645

The CDN module provides easy Content Delivery Network integration for Drupal sites. It alters file URLs, so that files are downloaded from a CDN instead of your web server.

When running in Origin Pull mode together with the “Far Future expiration” option, the module contains a vulnerability that allows anyone to view the contents of any *.php file within the site, including settings.php.

This vulnerability is mitigated by the fact that the site owner must have enabled the “Far Future expiration” option, and must be using the latest version of the module.

Versions affected

• CDN version 6.x-2.2
• CDN version 7.x-2.2

Drupal core is not affected. If you do not use the contributed CDN module, there is nothing you need to do.

Solution

Install the latest version:

• Upgrade to CDN module 6.x-2.3
• Upgrade to CDN module 7.x-2.3

See also the CDN project page.

Reported by

• Ivo Van Geertruyen of the Drupal Security Team

Fixed by

• Wim Leers the module maintainer
• Ivo Van Geertruyen of the Drupal Security Team