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Drupal Shibboleth Authentication 6.x Access Bypass

Drupal Shibboleth Authentication 6.x Access Bypass
Posted Aug 9, 2012
Authored by Brian Swaney | Site drupal.org

Drupal Shibboleth Authentication third party module version 6.x suffers from an access bypass vulnerability.

tags | advisory, bypass
SHA-256 | e56e802811cdc559b6dff8457f24a6cff5246f7478e4aea1adf2290a3508efec

Drupal Shibboleth Authentication 6.x Access Bypass

Change Mirror Download
View online: http://drupal.org/node/1719462

* Advisory ID: DRUPAL-SA-CONTRIB-2012-123
* Project: Shibboleth authentication [1] (third-party module)
* Version: 6.x
* Date: 2012-August-8
* Security risk: Moderately critical [2]
* Exploitable from: Remote
* Vulnerability: Access bypass

-------- DESCRIPTION
---------------------------------------------------------

The Shibboleth authentication module provides user authentication with
Shibboleth single sign-on systems (both v1.3 and v2.0) as well as some
authorization features (automatic role assignment based on Shibboleth
attributes).

The module doesn't sufficiently confirm the user's active status in Drupal
when authenticating a user whose account could be blocked.

CVE: Requested

-------- VERSIONS AFFECTED
---------------------------------------------------

* Shibboleth authentication all versions prior to 6.x-4.0-rc3.

Drupal core is not affected. If you do not use the contributed Shibboleth
authentication [3] module, there is nothing you need to do.

-------- SOLUTION
------------------------------------------------------------

Install the latest version:

* If you use the Shibboleth authentication module for Drupal 6.x, upgrade to
Shibboleth authentication 6.x-4.0 [4]

Shibboleth authentication releases for Drupal 7.x are not affected.

Also see the Shibboleth authentication [5] project page.

-------- REPORTED BY
---------------------------------------------------------

* Brian Swaney [6]

-------- FIXED BY
------------------------------------------------------------

Fixed by newer releases.

-------- CONTACT AND MORE INFORMATION
----------------------------------------

The Drupal security team can be reached at security at drupal.org or via the
contact form at http://drupal.org/contact [7].

Learn more about the Drupal Security team and their policies [8], writing
secure code for Drupal [9], and securing your site [10].


[1] http://drupal.org/project/shib_auth
[2] http://drupal.org/security-team/risk-levels
[3] http://drupal.org/project/shib_auth
[4] http://drupal.org/node/1332976
[5] http://drupal.org/project/shib_auth
[6] http://drupal.org/user/608968
[7] http://drupal.org/contact
[8] http://drupal.org/security-team
[9] http://drupal.org/writing-secure-code
[10] http://drupal.org/security/secure-configuration

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