- Advisory ID: DRUPAL-SA-CONTRIB-2010-061
- Project: AddonChat (third-party module)
- Version: 6.x-1.x
- Date: 2010-May-26
- Security risk: Highly Critical
- Exploitable from: Remote
- Vulnerability: Multiple (Privilege Escalation, Cross-site scripting)
Description
The AddonChat module provides Drupal integration with the AddonChat Java chat room.
Due to unsafe handling of the global $user object, failed authentication at the custom addonchat_auth.php script will log in an attacker as the chosen user.
Additionally, several configuration variables are not escaped correctly, leading to a cross-site scripting vulnerability. Users with "access administration pages" permission could add arbitrary HTML and javascript to pages.
Versions affected
- AddonChat module for Drupal 6.x versions prior to 6.x-1.2
Drupal core is not affected. If you do not use the contributed AddonChat module, there is nothing you need to do.
Solution
Install the latest version.
- If you use the AddonChat module for Drupal 6.x upgrade to AddonChat 6.x-1.2
Reported by
- Jonathan Hedstrom
- Dylan Tack of the Drupal Security Team
Fixed by
- Jonathan Hedstrom and Chris Duerr, the module maintainer.
Contact
The security team for Drupal can be reached at security at drupal.org or via the form at http://drupal.org/contact.
Read more about the Security Team and Security Advisories at http://drupal.org/security.