4.0.14, 4.2.10, 4.4.5, and 4.5.5 Security Advisory
Monday, Oct 6th, 2014
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 'realname' parameter is not correctly filtered on user account
creation, which could lead to user data override.
* Several places were found in the Bugzilla code where cross-site
scripting attacks could be used to access sensitive information.
* Private comments can be shown to flagmail recipients who aren't in
the insider group
* Specially formatted values in a CSV search results export could be
used in spreadsheet software to attack a user's computer.
All affected installations are encouraged to upgrade as soon as
possible.
Vulnerability Details
=====================
Class: Unauthorized Account Creation
Affected: 2.23.3 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5
Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6
Description: An attacker creating a new Bugzilla account can override certain
parameters when finalizing the account creation that can lead to the
user being created with a different email address than originally
requested. The overridden login name could be automatically added
to groups based on the group's regular expression setting.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=1074812
CVE Number: CVE-2014-1572
Class: Cross-Site Scripting
Affected: 2.17.1 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5
Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6
Description: During an audit of the Bugzilla code base, several places
were found where cross-site scripting exploits could occur which
could allow an attacker to access sensitive information.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=1075578
CVE Number: CVE-2014-1573
Class: Information Leak
Affected: 2.17.1 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5
Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6
Description: If a new comment was marked private to the insider group, and a flag
was set in the same transaction, the comment would be visible to
flag recipients even if they were not in the insider group.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=1064140
CVE Number: CVE-2014-1571
Class: Social Engineering
Affected: 2.17.1 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5
Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6
Description: Search results can be exported as a CSV file which can then be
imported into external spreadsheet programs. Specially formatted
field values can be interpreted as formulas which can be executed
and used to attack a user's computer.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=1054702
Vulnerability Solutions
=======================
The fix for these issues is included in the
releases. Upgrading to a release with the relevant fix will
protect your installation from possible exploits of these issues.
If you are unable to upgrade but would like to patch just the security
vulnerability, there are patches available for the issues at the
"References" URL.
Full release downloads, patches to upgrade Bugzilla from previous
versions, and git upgrade instructions are available at:
https://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 this
issue:
Issue 1 Reporter: Netanel Rubin of Check Point Vulnerability Research
Issue 1 Fixed by: Frédéric Buclin, Simon Green, Matt Tyson, David Lawrence, Byron Jones
Issue 2 Reporter: Frédéric Buclin
Issue 2 Fixed by: Frédéric Buclin, Simon Green, Matt Tyson, David Lawrence, Byron Jones
Issue 3 Reporter: Byron Jones
Issue 3 Fixed by: Frédéric Buclin, Simon Green, Matt Tyson, David Lawrence, Byron Jones
Issue 4 Reporter: James Kettle
Issue 4 Fixed by: Frédéric Buclin, Simon Green, Matt Tyson, David Lawrence, Byron Jones
General information about the Bugzilla bug-tracking system can be found
at:
https://www.bugzilla.org/
Comments and follow-ups can be directed to the support-bugzilla mailing list.
https://www.bugzilla.org/support/ has directions for accessing this forum.
