Drupal: RESTful Web Services - Cross site request forgery (CSRF)

View online: http://drupal.org/node/1890222

  * Advisory ID: DRUPAL-SA-CONTRIB-2013-003
  * Project: RESTful Web Services [1] (third-party module)
  * Version: 7.x
  * Date: 2013-January-16
  * Security risk: Moderately critical [2]
  * Exploitable from: Remote
  * Vulnerability: Cross Site Request Forgery

-------- DESCRIPTION  
---------------------------------------------------------

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 prepared page that leverages a weakness in certain
browser plugins.


-------- CVE IDENTIFIER(S) ISSUED  
--------------------------------------------

  * /A CVE identifier [3] will be requested, and added upon issuance, in
    accordance with Drupal Security Team processes./

-------- VERSIONS AFFECTED  
---------------------------------------------------

  * RESTWS 7.x-1.x versions prior to 7.x-1.2.
  * RESTWS 7.x-2.x versions prior to 7.x-2.0-alpha4.

Drupal core is not affected. If you do not use the contributed RESTful Web
Services [4] 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-1.2
    [5]
  * If you use the RESTWS 2.x module for Drupal 7.x, upgrade to RESTWS
    7.x-2.0-alpha4 [6]

Also see the RESTful Web Services [7] project page.

-------- REPORTED BY  
---------------------------------------------------------

  * Fredrik Lassen [8]
  * Klaus Purer [9] of the Drupal Security Team

-------- FIXED BY  
------------------------------------------------------------

  * Klaus Purer [10] the module maintainer

-------- COORDINATED BY  
------------------------------------------------------

  * Klaus Purer [11] of the Drupal Security Team

-------- CONTACT AND MORE INFORMATION  
----------------------------------------

The Drupal security team can be reached at security at drupal.org or via the
contact form at http://drupal.org/contact [12].

Learn more about the Drupal Security team and their policies [13], writing
secure code for Drupal [14], and securing your site [15].


[1] http://drupal.org/project/restws
[2] http://drupal.org/security-team/risk-levels
[3] http://cve.mitre.org/
[4] http://drupal.org/project/restws
[5] http://drupal.org/node/1890212
[6] http://drupal.org/node/1890216
[7] http://drupal.org/project/restws
[8] http://drupal.org/user/243377
[9] http://drupal.org/user/262198
[10] http://drupal.org/user/262198
[11] http://drupal.org/user/262198
[12] http://drupal.org/contact
[13] http://drupal.org/security-team
[14] http://drupal.org/writing-secure-code
[15] http://drupal.org/security/secure-configuration

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