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Category:   Application (Generic)  >   Bugzilla Vendors:   Mozilla.org
Bugzilla Input Validation Flaw Permits Cross-Site Request Forgery Attacks
SecurityTracker Alert ID:  1030128
SecurityTracker URL:  http://securitytracker.com/id/1030128
CVE Reference:   CVE-2014-1517   (Links to External Site)
Date:  Apr 21 2014
Impact:   Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.0 to 4.4.2, 4.5.1 to 4.5.2
Description:   A vulnerability was reported in Bugzilla. A remote user can conduct cross-site request forgery attacks.

The login form does not properly validate user-supplied requests. A remote user can conduct cross-site request forgery attacks to take actions on the site acting as the specified user (using the remote user's credentials).

Impact:   A remote user can take actions on the site acting as the specified user.
Solution:   The vendor has issued a fix (4.4.3, 4.5.3).

The vendor's advisory is available at:

http://www.bugzilla.org/security/4.0.11/

Vendor URL:  www.bugzilla.org/security/4.0.11/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


 Source Message Contents

Subject:  Security advisory for Bugzilla 4.5.3, 4.4.3, 4.2.8, and 4.0.12

Summary
=======

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

* The login form had no CSRF protection, meaning that an attacker could
  force the victim to log in using the attacker's credentials.

* Dangerous control characters can be inserted into Bugzilla, notably
  into bug comments, which can then be used to execute local commands.

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


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

Class:       Cross-Site Request Forgery
Versions:    Bugzilla 2.0 to 4.4.2, 4.5.1 to 4.5.2
Fixed In:    4.4.3, 4.5.3
Description: The login form had no CSRF protection, meaning that
             an attacker could force the victim to log in using the
             attacker's credentials. If the victim then reports a new
             security sensitive bug, the attacker would get immediate
             access to this bug.
             Due to changes involved in the Bugzilla API, this fix is
             not backported to the 4.0 and 4.2 branches, meaning that
             Bugzilla 4.0.12 and older, and 4.2.8 and older, will
             remain vulnerable to this issue.
References:  https://bugzilla.mozilla.org/show_bug.cgi?id=713926
CVE Number:  CVE-2014-1517

Class:       Social Engineering
Versions:    Bugzilla 2.0 to 4.0.11, 4.1.1 to 4.2.7, 4.3.1 to 4.4.2,
             4.5.1 to 4.5.2
Fixed In:    4.0.12, 4.2.8, 4.4.3, 4.5.3
Description: Dangerous control characters can be inserted into
             Bugzilla, notably into bug comments. If the text, which
             may look safe, is copied into a terminal such as xterm or
             gnome-terminal, then unexpected commands could be executed
             on the local machine.
References:  https://bugzilla.mozilla.org/show_bug.cgi?id=968576
CVE Number:  none


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

The fixes for these issues are included in the 4.0.12, 4.2.8, 4.4.3
and 4.5.3 releases. Upgrading to a release with the relevant fixes will
protect your installation from possible exploits of these issues.

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

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

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


Credits
=======

The Bugzilla team wish to thank the following people for their
assistance in locating, advising us of, and assisting us to fix these
issues:

Manish Goregaokar
David Lawrence
Byron Jones
Reed Loden

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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