Password Policy - Critical - Cross Site Scripting (XSS) - SA-CONTRIB-2015-090

The Password Policy module allows enforcing restrictions on user passwords by defining password policies.

The module doesn’t sufficiently sanitize usernames in some administration pages, thereby exposing a Cross Site Scripting vulnerability.

This vulnerability is mitigated by the fact that only sites with a policy that uses the username constraint are affected. Also, only sites importing users from an external source (like distributed authentication) may allow non-standard usernames that might contain malicious characters, as Drupal core has validation when creating users via the user interface.

CVE identifier(s) issued

• CVE-2015-4387

Versions affected

• Password Policy 6.x-1.x versions prior to 6.x-1.11.
• Password Policy 7.x-1.x versions prior to 7.x-1.11.

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

Solution

Install the latest version:

• If you use the Password Policy 6.x-1.x module for Drupal 6.x, upgrade to Password Policy 6.x-1.11
• If you use the Password Policy 7.x-1.x module for Drupal 7.x, upgrade to Password Policy 7.x-1.11

Also see the Password policy project page.

Reported by

• AohRveTPV, the module maintainer

Fixed by

• AohRveTPV, the module maintainer

Coordinated by

• Pere Orga of the Drupal Security Team