View online: https://www.drupal.org/sa-contrib-2019-075

Project: Open Social [1] Date: 2019-November-06 Security risk: *Critical* 15∕25 AC:Basic/A:None/CI:Some/II:Some/E:Theoretical/TD:Default [2] Vulnerability: Insecure Session Management

Description:  Open Social is a Drupal distribution for online communities. The included social_magic_login module doesn't sufficiently validate magic login URLs for user accounts that do not have a local password, but login via external systems. The lack of validation makes it possible for an adversary to forge valid login URLs and login to such an account.

This vulnerability is mitigated by the fact the module social_magic_login needs to be enabled.

Solution:  Install the latest version:

* If you use the Open Social distribution for Drupal 8.x-7.x, upgrade to open social 8.x-7.1 [3] * If you use the Open Social distribution for Drupal 8.x-6.x, upgrade to open social 8.x-6.5 [4]

Alternatively, disable the module social_magic_login.

Also see the Open Social [5] project page.

Reported By:  * Heine [6] of the Drupal Security Team

Fixed By:  * Heine [7] of the Drupal Security Team * Alexander Varwijk [8] * Ronald te Brake [9] * Drew Webber [10] of the Drupal Security Team

Coordinated By:  * Heine [11] of the Drupal Security Team

[1] https://www.drupal.org/project/social [2] https://www.drupal.org/security-team/risk-levels [3] https://www.drupal.org/project/social/releases/8.x-7.1 [4] https://www.drupal.org/project/social/releases/8.x-6.5 [5] https://www.drupal.org/project/social [6] https://www.drupal.org/user/17943 [7] https://www.drupal.org/user/17943 [8] https://www.drupal.org/user/1868952 [9] https://www.drupal.org/user/2314038 [10] https://www.drupal.org/user/255969 [11] https://www.drupal.org/user/17943