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             AUSCERT External Security Bulletin Redistribution

                    ESB-2009.0314 -- [Win][UNIX/Linux]
    Bugzilla: "attachment.cgi" Cross-Site Request Forgery Vulnerability
                               3 April 2009

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

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

Product:              Bugzilla prior to 3.2.3
                      Bugzilla prior to 3.3.4
Publisher:            Bugzilla
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact:               Cross-site Request Forgery
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-1213

Original Bulletin:    http://www.bugzilla.org/security/3.2.2/

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3.2.2 and 3.3.3 Security Advisory
March 30, 2009

Summary
=======

Bugzilla is a Web-based bug-tracking system, used by a large number of
software projects.

This advisory covers one security issue that has recently been
fixed in the Bugzilla code:

* Attachment editing was vulnerable to a cross-site request forgery.
  Note that this issue was only fixed for 3.2.3 and 3.3.4 even though
  all versions of Bugzilla are affected (see below for an explanation).

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

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

Class:       Cross-Site Request Forgery
Versions:    Every version before 3.2.3 or 3.3.4
Fixed In:    3.2.3, 3.3.4
Description: Attachment editing was vulnerable to a cross-site request
             forgery, because it did not validate that calls to
             attachment.cgi actually came from Bugzilla.

             Bugzilla now generates a token that is validated when
             an attachment is edited. Unfortunately, a fix for this issue
             was only possible for 3.2.3 and 3.3.4. Fixing it on earlier
             branches was not possible as attachment timestamps are not
             available to generate and validate tokens.

Reference:   https://bugzilla.mozilla.org/show_bug.cgi?id=476603


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

The fix for the security bug mentioned in this advisory is included
in the 3.3.4 and 3.2.3 releases. Upgrading to one of these releases
will protect your installation from possible exploits of this issue.

Full release downloads, patches to upgrade Bugzilla from previous
versions, and CVS 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
these issues:

Reed Loden
Frdric Buclin
Dave Miller

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.

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You have received this e-mail bulletin as a result of your organisation's
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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

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
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.
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