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Drupal User Read-Only 6.x / 7.x Access Bypass

Drupal User Read-Only 6.x / 7.x Access Bypass
Posted Nov 14, 2012
Authored by Kellie Bradford Delaney | Site drupal.org

User Read-only is a module that allows an administrator to prevent modification of user account/profile fields. The administrator can select which fields will allow or disallow editing. The module can mistakenly assign roles when performing unrelated operations against a user's account such as changing a password. The vulnerability is particular to certain combinations of configuration and the number of roles available on the site (more than 3). Versions 6.x and 7.x are affected.

tags | advisory
MD5 | 11287af464d679c00446f97615e2b3c5

Drupal User Read-Only 6.x / 7.x Access Bypass

Change Mirror Download
View online: http://drupal.org/node/1840886

* Advisory ID: DRUPAL-SA-CONTRIB-2012-163
* Project: User Read-Only [1] (third-party module)
* Version: 6.x, 7.x
* Date: 2012-November-14
* Security risk: Moderately critical [2]
* Exploitable from: Remote
* Vulnerability: Access bypass

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

User Read-only is a module that allows an administrator to prevent
modification of user account/profile fields. The administrator can select
which fields will allow or disallow editing.

The module can mistakenly assign roles when performing unrelated operations
against a user's account such as changing a password.

The vulnerability is particular to certain combinations of configuration and
the number of roles available on the site (more than 3).

CVE: Requested

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

* User Read-Only 6.x-1.x versions prior to 6.x-1.4.
* User Read-Only 7.x-1.x versions prior to 7.x-1.4.

Drupal core is not affected. If you do not use the contributed User Read-Only
[3] module, there is nothing you need to do.

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

Install the latest version:

* If you use the User Read-Only module for Drupal 6.x, upgrade to User
Read-Only 6.x-1.4 [4]
* If you use the User Read-Only module for Drupal 7.x, upgrade to User
Read-Only 7.x-1.4 [5]

Also see the User Read-Only [6] project page.

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

* Kellie Bradford Delaney [7]

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

* David Norman [8] the module maintainer

-------- COORDINATED BY
------------------------------------------------------

* Greg Knaddison [9] of the Drupal Security Team
* Heine Deelstra [10] of the Drupal Security Team
* Lee Rowlands [11] provisional member of the Drupal Security Team

-------- 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 [12].

Learn more about the Drupal Security team and their policies [13], writing
secure code for Drupal [14], and securing your site [15].


[1] http://drupal.org/project/user_readonly
[2] http://drupal.org/security-team/risk-levels
[3] http://drupal.org/project/user_readonly
[4] http://drupal.org/node/1840054
[5] http://drupal.org/node/1840038
[6] http://drupal.org/project/user_readonly
[7] http://drupal.org/user/1473110
[8] http://drupal.org/user/972
[9] http://drupal.org/user/36762
[10] http://drupal.org/user/17943
[11] http://drupal.org/user/395439
[12] http://drupal.org/contact
[13] http://drupal.org/security-team
[14] http://drupal.org/writing-secure-code
[15] http://drupal.org/security/secure-configuration

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