SA-CONTRIB-2012-009 - Revisioning - Access bypass

CVE: CVE-2012-1635

This module enables you to create moderation publication workflows, allowing authors to create content that isn’t visible to the public until it has been approved by a moderator/publisher.

The module’s implementation of hook_node_access() assumes that access is to granted/denied based on the logged-in user’s permissions. However, the hook may be invoked in contexts whereby the access grants are to be returned for a particular account passed into the hook. This could result in an access bypass vulnerability if node_access() is called for a specific user account.

This vulnerability happens when using the XML sitemap module which as a result will disclose the URLs of un-accessible or unpublished content to anonymous users. The actual content itself is not disclosed.

Versions affected

• Revisioning 7.x-1.x versions prior to 7.x-1.3.

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

Solution

Install the latest version:

• If you use the Revisioning module for Drupal 7.x, upgrade to Revisioning 7.x-1.3.

See also the Revisioning project page.

Reported by

• Dave Reid, Drupal Security Team member
• Adam Bramley

Fixed by

• Dave Reid, Drupal Security Team member
• Rik de Boer, module maintainer

Coordinated by

• Dave Reid, Drupal Security Team member