DRUPAL-CONTRIB-2020-033 The Group module enables you to hand out permissions on a smaller subset, section or community of your website.
Non-members can gain elevated permissions on grouped content if two group types with conflicting permissions are configured for the same content type.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is DRUPAL-CONTRIB-2020-033?
DRUPAL-CONTRIB-2020-033 is a missing authorization vulnerability in drupal/group, published on 5 Aug 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Group module enables you to hand out permissions on a smaller subset, section or community of your website.
Under very specific circumstances, where two group types support the same content, yet hand out different permissions, non-members of the first group type may use the set of permissions of the 2nd group type for the grouped content.
This vulnerability is mitigated by the fact that you must already have a rare set-up and the two group types are configured in a way where one is more permissive than the other over the same type of content.
Which versions are affected by DRUPAL-CONTRIB-2020-033?
Linux distribution packages (1)
drupal/group Packagist:https://packages.drupal.org/8 | All versions | 1.2.0 |
How do I fix DRUPAL-CONTRIB-2020-033?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is DRUPAL-CONTRIB-2020-033 being exploited?
There is no known exploitation of DRUPAL-CONTRIB-2020-033 in the wild and no public exploit code.