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AUSCERT External Security Bulletin Redistribution
ESB-2009.1089
Moderation (Drupal third-party module): Cross-site Request Forgery
23 July 2009
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AusCERT Security Bulletin Summary
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Product: Moderation (Drupal third-party module)
Publisher: Drupal
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Cross-site Request Forgery -- Remote/Unauthenticated
Resolution: Upgrade
Original Bulletin:
http://drupal.org/node/527878
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* Advisory ID: DRUPAL-SA-CONTRIB-2009-045
* Project: Moderation (third-party module)
* Version: 5.x, 6.x
* Date: 2009-07-22
* Security risk: Less critical
* Exploitable from: Remote
* Vulnerability: Cross-site Request Forgery
- -------- DESCRIPTION ---------------------------------------------------------
The Moderation module uses Ajax to provide a dynamic moderation queue for
nodes and comments. The module is vulnerable to cross-site request forgeries
(CSRF [1]) via the AJAX hooks used to toggle the moderation bit. It allows a
non-administrative user to trick an admin into publishing arbitrary moderated
content by directing them to the url via link or image src, etc.
- -------- VERSIONS AFFECTED ---------------------------------------------------
* Moderation versions 5.x-1.x prior to 5.x-1.2
* Moderation versions 6.x-1.x prior to 6.x-1.3
Drupal core is not affected. If you do not use the contributed Moderation
module, there is nothing you need to do.
- -------- SOLUTION ------------------------------------------------------------
Install the latest version:
* If you use Moderation versions for Drupal 5.x upgrade to Moderation
version 5.x-1.2 [2]
* If you use Moderation versions for Drupal 6.x upgrade to Moderation
version 6.x-1.3 [3]
See also the Moderation [4] project page.
- -------- REPORTED BY ---------------------------------------------------------
Ben Ford.
- -------- FIXED BY ------------------------------------------------------------
Stefan Auditor [5], the Moderation project maintainer, with assistance from
Ben Jeavons [6] of the Drupal Security Team [7]
- -------- CONTACT -------------------------------------------------------------
The security team for Drupal can be reached at security at drupal.org or via
the form at http://drupal.org/contact.
[1] http://en.wikipedia.org/wiki/Csrf
[2] http://drupal.org/node/527866
[3] http://drupal.org/node/527864
[4] http://drupal.org/project/moderation
[5] http://drupal.org/user/28074
[6] http://drupal.org/user/91990
[7] http://drupal.org/security-team
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