seeing is believing

Drupal ShareThis 7.x Cross Site Scripting / Cross Site Request Forgery

Drupal ShareThis 7.x Cross Site Scripting / Cross Site Request Forgery
Posted Mar 29, 2012
Authored by Travis Tomka | Site drupal.org

The Drupal ShareThis module version 7.x suffers from cross site scripting and cross site request forgery vulnerabilities.

tags | advisory, vulnerability, xss, csrf
MD5 | d7596bbec9dd1ad9034f9a506415ffbe

Drupal ShareThis 7.x Cross Site Scripting / Cross Site Request Forgery

Change Mirror Download
  * 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

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