copyright | disclaimer | privacy | contact  
Australia's Leading Computer Emergency Response Team
 
Search this site

 
On this site

 > HOME
 > About AusCERT
 > Membership
 > Contact Us
 > PKI Services
 > Publications
 > Sec. Bulletins
 > Conferences
 > News & Media
 > Services
 > Web Log
 > Site Map
 > Site Help
 > Member login





 

ESB-2012.0223 - [Win][UNIX/Linux] Bugzilla: Cross-site request forgery - Remote with user interaction

Date: 24 February 2012

Click here for printable version
Click here for PGP verifiable version
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

                               ESB-2012.0223
                  Cross-Site Request Forgery in Bugzilla
                             24 February 2012

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

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

Product:           Bugzilla
Publisher:         Bugzilla
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Cross-site Request Forgery -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-0453  

Original Bulletin: 
   http://www.bugzilla.org/security/4.0.4/

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

4.2rc2 and 4.0.4 Security Advisory

   Wednesday, February 22nd, 2012

Summary
=======

Bugzilla is a Web-based bug-tracking system used by a large number of
software projects. The following security issue has been discovered
in Bugzilla:

* A CSRF vulnerability in the implementation of the XML-RPC API
  when running under mod_perl could be used to make changes to
  bugs or execute some admin tasks without the victim's knowledge.

All affected installations are encouraged to upgrade as soon as
possible.


Vulnerability Details
=====================

Class:       Cross-Site Request Forgery
Versions:    4.0.2 to 4.0.4, 4.1.1 to 4.2rc2
Fixed In:    4.0.5, 4.2
Description: Due to a lack of validation of the enctype form
             attribute when making POST requests to xmlrpc.cgi,
             a possible CSRF vulnerability was discovered. If a user
             visits an HTML page with some malicious HTML code in it,
             an attacker could make changes to a remote Bugzilla installation
             on behalf of the victim's account by using the XML-RPC API
             on a site running mod_perl. Sites running under mod_cgi
             are not affected. Also the user would have had to be
             already logged in to the target site for the vulnerability
             to work.
References:  https://bugzilla.mozilla.org/show_bug.cgi?id=725663
CVE Number:  CVE-2012-0453


Vulnerability Solutions
=======================

The fix for this issue is included in the 4.0.5 and 4.2 releases.
Upgrading to a release with the relevant fix will protect your
installation from possible exploits of this issue.

If you are unable to upgrade but would like to patch just the
individual security vulnerability, there is a patch available for
the issue at the "References" URL for the vulnerability.

Full release downloads, patches to upgrade Bugzilla from previous
versions, and CVS/bzr upgrade instructions are available at:

  http://www.bugzilla.org/download/


Credits
=======

The Bugzilla team wish to thank the following people/organizations for
their assistance in locating, advising us of, and assisting us to fix
this issue:

David Lawrence
Byron Jones
Frederic Buclin
Mario Gomes

General information about the Bugzilla bug-tracking system can be found
at:

  http://www.bugzilla.org/

Comments and follow-ups can be directed to the mozilla.support.bugzilla
newsgroup or the support-bugzilla mailing list.
http://www.bugzilla.org/support/ has directions for accessing these
forums.

- --------------------------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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=wZV5
-----END PGP SIGNATURE-----