-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0115
          Multiple vulnerabilities have been identified in Drupal
                              2 February 2012

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Drupal
Publisher:         Drupal
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Cross-site Request Forgery -- Remote/Unauthenticated
                   Denial of Service          -- Remote/Unauthenticated
                   Unauthorised Access        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-0827 CVE-2012-0826 CVE-2012-0825

Original Bulletin: 
   http://drupal.org/node/1425084

- --------------------------BEGIN INCLUDED TEXT--------------------

  * Advisory ID: DRUPAL-SA-CORE-2012-001
  * Project: Drupal core [1]
  * Version: 6.x, 7.x
  * Date: 2012-February-01
  * Security risk: Moderately critical [2]
  * Exploitable from: Remote
  * Vulnerability: Access bypass, Cross Site Request Forgery, Multiple
    vulnerabilities

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

.... Cross Site Request Forgery vulnerability in Aggregator module

CVE: CVE-2012-0826
An XSRF vulnerability can force an aggregator feed to update. Since some
services are rate-limited (e.g. Twitter limits requests to 150 per hour) this
could lead to a denial of service.

This issue affects Drupal 6.x and 7.x.

.... OpenID not verifying signed attributes in SREG and AX

CVE: CVE-2012-0825
A group of security researchers identified a flaw in how some OpenID relying
parties implement Attribute Exchange (AX). Not verifying that attributes
being passed through AX have been signed could allow an attacker to modify
users' information.

This issue affects Drupal 6.x and 7.x.

.... Access bypass in File module

CVE: CVE-2012-0827
When using private files in combination with certain field access modules,
the File module will allow users to download the file even if they do not
have access to view the field it was attached to.

This issue affects Drupal 7.x only.

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

  * Drupal 6.x core prior to 6.23.
  * Drupal 7.x core prior to 7.11.

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

Install the latest version:

  * If you use Drupal 6.x upgrade to 6.23 [3]
  * If you use Drupal 7.x upgrade to 7.11 [4]

See also the Drupal core [5] project page.

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

  * The Aggregator module CSRF vulnerability was reported by Dylan Tack [6] of
    the Drupal Security Team.
  * The OpenID vulnerability was reported by Rui Wang, Shuo Chen and Xiao Feng
    Wang [7].
  * The File module access bypass issue was reported by David Rothstein [8] of
    the Drupal Security Team, and by Sascha Grossenbacher [9].

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

  * Aggregator CSRF issue fixed by Dave Reid [10] of the Drupal Security Team
  * OpenID issue fixed by Vojtech Kusy [11] and Christian Schmidt [12]
  * The File module access bypass issue was fixed by David Rothstein [13] of
    the Drupal Security Team, Sascha Grossenbacher [14], and Derek Wright [15]
    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 [16].

Learn more about the Drupal Security team and their policies [17], writing
secure code for Drupal [18], and securing your site [19].


[1] http://drupal.org/project/drupal
[2] http://drupal.org/security-team/risk-levels
[3] http://drupal.org/node/1425082
[4] http://drupal.org/node/1425092
[5] http://drupal.org/project/drupal
[6] http://drupal.org/user/96647
[7] http://openid.net/2011/05/05/attribute-exchange-security-alert/
[8] http://drupal.org/user/124982
[9] http://drupal.org/user/214652
[10] http://drupal.org/user/53892
[11] http://drupal.org/user/56154
[12] http://drupal.org/user/216078
[13] http://drupal.org/user/124982
[14] http://drupal.org/user/214652
[15] http://drupal.org/user/46549
[16] http://drupal.org/contact
[17] http://drupal.org/security-team
[18] http://drupal.org/writing-secure-code
[19] http://drupal.org/security/secure-configuration

- --------------------------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 auscert@auscert.org.au
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:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=I7ay
-----END PGP SIGNATURE-----