SAML Authentication - Moderately critical - Access bypass - SA-CONTRIB-2021-006

SAML Authentication - Moderately critical - Access bypass - SA-CONTRIB-2021-006

Project: SAML Authentication
Date: 2021-April-28
Security risk: Moderately critical 14∕25
Vulnerability: Access bypass


The SAML Authentication module allows users to authenticate against a SAML identity provider to login to your Drupal site.

The module doesn't sufficiently protect against unauthorized local access, by way of using the 'password reset' facility, for users who are supposed to only be able to log in through the identity provider. This creates a scenario where after such a user is blocked from logging in through the identity provider but not explicitly blocked in Drupal, they are still able to log in by sending themselves a Drupal 'password reset' e-mail.


Install the latest version:

for all versions of Drupal 8/9, upgrade to samlauth 8.x-3.1.
for Drupal 7, upgrade to samlauth 7.x-1.1.

Nick Onom's picture
Nick Onom
Marketing Project Manager
Enthusiastic about all kinds of Open Source applications, AI, bitcoins, but mostly Drupal and Backdrop. For last years has been actively developing AltaGrade's new back-end system.

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