-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
SAML Authentication - Moderately critical - Access bypass -
29 April 2021
AusCERT Security Bulletin Summary
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Unauthorised Access -- Existing Account
- --------------------------BEGIN INCLUDED TEXT--------------------
SAML Authentication - Moderately critical - Access bypass - SA-CONTRIB-2021-006
Project: SAML Authentication
Moderately critical 14/25 AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:All
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:
o for all versions of Drupal 8/9, upgrade to samlauth 8.x-3.1.
o for Drupal 7, upgrade to samlauth 7.x-1.1.
o Bobby Gryzynger
o Mark Shropshire
o Bobby Gryzynger
o Roderik Muit
o Jakob Perry
o Sascha Grossenbacher
o Cameron Eagans
o Drew Webber of the Drupal Security Team
o Greg Knaddison of the Drupal Security Team
Contact and more information
The Drupal security team can be reached by email at security at drupal.org or
via the contact form.
Learn more about the Drupal Security team and their policies, writing secure
code for Drupal, and securing your site.
Follow the Drupal Security Team on Twitter @drupalsecurity
Contributing organizations for this advisory
o MD Systems
o Morris Animal Foundation
The security team is made up of volunteers around the world. The companies
above have sponsored time on this release.
Thank you to these Drupal contributors
Top Drupal contributor Acquia would like to thank their partners for their
contributions to Drupal.
Third and Grove
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to firstname.lastname@example.org
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----