View online: http://drupal.org/node/1903282 * Advisory ID: DRUPAL-SA-CONTRIB-2013-012 * Project: Google Authenticator login [1] (third-party module) * Version: 7.x * Date: 2013-January-30 * Security risk: Highly critical [2] * Exploitable from: Remote * Vulnerability: Access bypass -------- DESCRIPTION --------------------------------------------------------- This module will allow you to add Time-based One-time Password Algorithm (also called "Two Step Authentication" or "Multi-Factor Authentication") support to user logins. Users with the permission to use multi-factor authentication need to associate a Google Authenticator token with their acount before they can use the multi-factor authentication for login. If this step is not done or not completed, their accounts can be logged-in to by supplying the username only due to a logic bug in the module's validation. This means that when an administrator enables the module and grants the permission to use multi-factor authentication all user accounts with that permission can be logged-in to via the username. -------- CVE IDENTIFIER(S) ISSUED -------------------------------------------- * /A CVE identifier [3] will be requested, and added upon issuance, in accordance with Drupal Security Team processes./ -------- VERSIONS AFFECTED --------------------------------------------------- * All 7.x versions prior to 7.x-1.3. Drupal core is not affected. If you do not use the contributed Google Authenticator login [4] module, there is nothing you need to do. -------- SOLUTION ------------------------------------------------------------ Install the latest version: * If you use the Google Authenticator login module for Drupal 7.x, upgrade to Google Authenticator login 7.x-1.3 [5] Also see the Google Authenticator login [6] project page. -------- REPORTED BY --------------------------------------------------------- * Patrick C. [7] -------- FIXED BY ------------------------------------------------------------ * attiks [8] the module maintainer -------- COORDINATED BY ------------------------------------------------------ * Heine Deelstra [9] of the Drupal Security Team * Greg Knaddison [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/ga_login [2] http://drupal.org/security-team/risk-levels [3] http://cve.mitre.org/ [4] http://drupal.org/project/ga_login [5] http://drupal.org/node/1902102 [6] http://drupal.org/project/ga_login [7] https://drupal.org/user/127758 [8] http://drupal.org/user/105002 [9] http://drupal.org/user/17943 [10] http://drupal.org/user/36762 [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