SA-CONTRIB-2012-092 - Organic Groups - Cross Site Scripting (XSS) and Access Bypass

The Organic Groups module enables users to create and manage their own ‘groups’. Each group can have subscribers, and maintains a group home page where subscribers communicate amongst themselves.

Cross Site Scripting

The module doesn’t sufficiently filter user supplied text when used in connection with the Vertical Tabs module.
This vulnerability is mitigated by the fact that an attacker must have a role with the permission to create or edit a group title and the site must have the contributed Vertical Tabs module installed and the Vertical Tabs configuration must include the Organic Group select area (this is the default configuration when Vertical Tabs is enabled).

Access bypass

The module’s default views do not sufficiently check the Drupal core permission to access content.
This vulnerability is mitigated by the fact that a site must have removed the “access content” permission to all users. This is not a common configuration.

Access bypass:
CVE: CVE-2012-2721
XSS:
CVE: CVE-2012-3800

Versions affected

• Organic groups 6.x-2.x versions prior to 6.x-2.4.

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

Solution

Install the latest version:

• If you use the Organic groups module for Drupal 6.x, upgrade to Organic Groups 6.x-2.4

Also see the Organic groups project page.

Reported by

• Ezra Barnett Gildesgame identified the Cross Site Scripting issue
• Fox identified the Access Bypass issue

Fixed by

• Adam Ross the module maintainer
• Fox
• Greg Knaddison of the Drupal Security Team

Coordinated by

• Greg Knaddison of the Drupal Security Team
• Forest Monsen of the Drupal Security Team