SA-CONTRIB-2012-162 - RESTful Web Services - Cross site request forgery (CSRF)

This module enables you to expose Drupal entities as RESTful web services. It provides a machine-readable interface to exchange resources in JSON, XML and RDF.

The module doesn’t sufficiently verify POST requests thereby exposing a Cross Site Request Forgery vulnerability.

This vulnerability is mitigated by the fact that an attacker must trick an authenticated user onto a page with a site-specific malicious HTML form submission.

CVE: CVE-2012-5556

Versions affected

• RESTWS 7.x-1.x versions prior to 7.x-1.1.
• RESTWS 7.x-2.x versions prior to 7.x-2.0-alpha3.

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

Solution

Install the latest version:

• If you use the RESTWS 1.x module for Drupal 7.x, upgrade to RESTWS 7.x-1.1
• If you use the RESTWS 2.x module for Drupal 7.x, upgrade to RESTWS 7.x-2.0-alpha3

Also see the RESTful Web Services project page.

Reported by

• Damien Tournoud of the Drupal Security Team
• Klaus Purer of the Drupal Security Team

Fixed by

• Klaus Purer the module maintainer

Coordinated by

• Klaus Purer of the Drupal Security Team