View online: http://drupal.org/node/1597414

  * Advisory ID: DRUPAL-SA-CONTRIB-2012-085
  * Project: BrowserID (Mozilla Persona) [1] (third-party module)
  * Version: 7.x
  * Date: 2012-May-23
  * Security risk: Critical [2]
  * Exploitable from: Remote
  * Vulnerability: Cross Site Request Forgery (results in Privilege
    Escalation)

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

CVE: Requested
The BrowserID module provides integration with BrowserID (also known as
Mozilla Persona) -- a Mozilla project that lets users of your site quickly
and easily log in without needing to remember a password specific to your
site.

The module did not sufficiently validate requests for authentication to log
in, potentially allowing a Cross Site Request Forgery (CSRF) attack and
introducing the possibility that logging in to a malicious site with
BrowserID could give that site the ability to log in to other websites using
your BrowserID identity.

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

  * BrowserID (Mozilla Persona) 7.x-1.x versions prior to 7.x-1.3.

Drupal core is not affected. If you do not use the contributed BrowserID
(Mozilla Persona) [3] module, there is nothing you need to do.

-------- SOLUTION  
------------------------------------------------------------

Install the latest version:

  * If you use the BrowserID module for Drupal 7.x, upgrade to BrowserID
    7.x-1.3 [4]

This version adds a dependency on the Session API [5] module. Make sure you
install Session API /before/ upgrading to BrowserID 7.x-1.3.

Also see the BrowserID (Mozilla Persona) [6] project page.

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

  * Isaac Sukin [7], the module maintainer

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

  * Isaac Sukin [8], the module maintainer
  * Greg Knaddison [9] of the Drupal Security Team
  * Ben Adida [10] of Mozilla

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

  * Greg Knaddison [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/browserid
[2] http://drupal.org/security-team/risk-levels
[3] http://drupal.org/project/browserid
[4] https://drupal.org/node/1596464
[5] https://drupal.org/project/session_api
[6] http://drupal.org/project/browserid
[7] https://drupal.org/user/201425
[8] https://drupal.org/user/201425
[9] https://drupal.org/user/36762
[10] https://drupal.org/user/1876458
[11] http://drupal.org/user/36762
[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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