[Security-news] SA-CONTRIB-2014-099 - Open Atrium Core - Access bypass

[security-news at drupal.org]

View online: https://www.drupal.org/node/2357295

   * Advisory ID: DRUPAL-SA-CONTRIB-2014-099
   * Project: Open Atrium [1]     (third-party module)
   * Version: 7.x
   * Date: 2014-10-15
   * Security risk: 10/25 ( Moderately Critical)
     AC:Basic/A:User/CI:Some/II:None/E:Theoretical/TD:Default [2]
   * Vulnerability: Access bypass

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

The oa_core module contains the base access control mechanism for the Open
Atrium distribution (OA2).  In OA2, file attachments are given the same
access permission as the node they are attached to.

The vulnerability is when an attachment is removed from a node that has
Revisions enabled.  It allows anonymous users to view the file that is still
attached to the previous revision.

This vulnerability is mitigated by the fact that it requires using Revisions
and removing files attached to revisions.  If revisions are disabled or files
are not removed from nodes then access works as designed.


-------- CVE IDENTIFIER(S) ISSUED
--------------------------------------------

   * /A CVE identifier [3] will be requested, and added upon issuance, in
     accordance
            with Drupal Security Team processes./

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

   * oa_core 7.x-2.x versions prior to 7.x-2.22 [4].

Drupal core is not affected. If you do not use the contributed Open Atrium
[5] module,
       there is nothing you need to do.

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

Install the latest version:

   * If you use the oa_core module for Drupal 7.x, upgrade to oa_core 7.x-2.22
     [6].

Also see the Open Atrium [7] project page.

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

   * .John [8]

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

   * Mike Potter [9] the module maintainer

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

   * Hunter Fox [10] of the Drupal Security Team
   * Greg Knaddison [11] 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
https://www.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] https://www.drupal.org/project/openatrium
[2] https://www.drupal.org/security-team/risk-levels
[3] http://cve.mitre.org/
[4] https://www.drupal.org/node/2357279
[5] https://www.drupal.org/project/openatrium
[6] https://www.drupal.org/node/2357279
[7] https://www.drupal.org/project/openatrium
[8] https://www.drupal.org/user/2659819
[9] https://www.drupal.org/user/616192
[10] https://www.drupal.org/user/426416
[11] https://www.drupal.org/u/greggles
[12] https://www.drupal.org/contact
[13] https://www.drupal.org/security-team
[14] https://www.drupal.org/writing-secure-code
[15] https://www.drupal.org/security/secure-configuration