Update on Views Ajax vulnerability for Drupal 7 Views and Drupal 8 core. -- PSA-2017-002

• Advisory ID: DRUPAL-PSA-2017-002
• Project: Drupal contributed modules
• Version: 7.x, 8.x
• Date: 2017-Aug-16

Description

The Drupal Security Team is now aware that the Views ajax access bypass vulnerability (DRUPAL-SA-CONTRIB-2017-068 and SA-CORE-2017-004) released 16 Aug 2017 is more severe than originally announced, because many widely used contrib modules don't have access restrictions set on the default views they provide. Any view that does not have access controls on the default (master) display may be vulnerable. The vulnerability does not require any authentication to be exploited. A successful exploit results in some non-public data being made public.

Sites running versions of Views prior to 7.x-3.17 or Drupal 8 core prior to version 8.3.7 (including Drupal 8.1.x and 8.2.x) should update immediately. Drupal 7 core is only affected if the Views module is enabled.

If you are unable to update Views, you can mitigate this by editing views that contain sensitive data in the Views UI and making sure they utilise one of the permission controls - such as 'require a role' or 'require a permission'. See Views permissions manual page for more information.

Contact and More Information

The Drupal Security Team can be reached at security at drupal.org or via the contact form at https://www.drupal.org/contact.

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