* Advisory ID: DRUPAL-SA-CONTRIB-2012-049 * Project: ShareThis [1] (third-party module) * Version: 7.x * Date: 2012-March-28 * Security risk: Moderately critical [2] * Exploitable from: Remote * Vulnerability: Cross Site Scripting, Cross Site Request Forgery
-------- DESCRIPTION ---------------------------------------------------------
The ShareThis module allows you to display social networking tools to users.
The administration forms of the module do not properly use the Form API allowing a malicious user to inject unexpected settings, allowing for cross-site scripting attacks (XSS). Additionally, the module had an incomplete feature for updating these settings outside of the Form API which was vulnerable to a cross site request forgery attack.
This vulnerability is mitigated by the fact that an attacker must have a role with the permission "administer sharethis".
-------- VERSIONS AFFECTED ---------------------------------------------------
* ShareThis 7.x-2.x versions prior to 7.x-2.2.
Drupal core is not affected. If you do not use the contributed ShareThis [3] module, there is nothing you need to do.
-------- SOLUTION ------------------------------------------------------------
Install the latest version:
* If you use the ShareThis module for Drupal 7.x, upgrade to ShareThis 7.x-2.3 [4]
Also see the ShareThis [5] project page.
-------- REPORTED BY ---------------------------------------------------------
* Travis Tomka [6]
-------- FIXED BY ------------------------------------------------------------
* Greg Knaddison [7] of the Drupal Security Team * Rob Loach [8], the module maintainer
-------- COORDINATED BY ------------------------------------------------------
* Greg Knaddison [9] of the Drupal Security Team * Michael Hess [10] 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 [11].
Learn more about the Drupal Security team and their policies [12], writing secure code for Drupal [13], and securing your site [14].
[1] http://drupal.org/project/sharethis [2] http://drupal.org/security-team/risk-levels [3] http://drupal.org/project/sharethis [4] http://drupal.org/node/1504746 [5] http://drupal.org/project/sharethis [6] http://drupal.org/user/718562 [7] http://drupal.org/user/36762 [8] http://drupal.org/user/61114 [9] http://drupal.org/user/36762 [10] http://drupal.org/user/102818 [11] http://drupal.org/contact [12] http://drupal.org/security-team [13] http://drupal.org/writing-secure-code [14] http://drupal.org/security/secure-configuration