[Security-news] Group - Moderately critical - Information disclosure - SA-CONTRIB-2020-033

[security-news at drupal.org]

View online: https://www.drupal.org/sa-contrib-2020-033

Project: Group [1]
Version: 8.x-1.x-dev
Date: 2020-August-05
Security risk: *Moderately critical* 11∕25
AC:None/A:User/CI:Some/II:None/E:Theoretical/TD:Uncommon [2]
Vulnerability: Information disclosure

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.

Solution: 
Install the latest version:

   * If you are using 8.x-1.0 [3] or later, you should upgrade to 8.x-1.2 [4].
   * If you are using 8.x-1.0-rc5 [5], that version is not affected by this
     issue. You can also consider upgrading to 8.x-1.2 [6].

Reported By: 
   * John Pitcairn  [7]

Fixed By: 
   * Kristiaan Van den Eynde  [8]


[1] https://www.drupal.org/project/group
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/group/releases/8.x-1.0
[4] https://www.drupal.org/project/group/releases/8.x-1.2
[5] https://www.drupal.org/project/group/releases/8.x-1.0-rc5
[6] https://www.drupal.org/project/group/releases/8.x-1.2
[7] https://www.drupal.org/user/425866
[8] https://www.drupal.org/user/1345130