Bugzilla Permits Cross-Site Scripting and HTTP Response Splitting Attacks and Discloses Certain Information to Remote Users
SecurityTracker Alert ID: 1024683|
SecurityTracker URL: http://securitytracker.com/id/1024683
(Links to External Site)
Date: Nov 4 2010
Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information|
Fix Available: Yes Vendor Confirmed: Yes |
Version(s): Versions prior to 3.2.9, 3.4.9, 3.6.3, 4.0rc1|
Several vulnerabilities were reported in Bugzilla. A remote user can conduct cross-site scripting attacks. A remote user can conduct HTTP response splitting attacks. A remote user can view graphs from Old Charts.|
The YUI library component (v2.8.1) does not properly filter HTML code from '.swf' files. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Bugzilla software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
A remote user can submit a specially crafted URL to cause the target server to return a split response [CVE-2010-3172]. A remote user can exploit this to spoof content on the target server, attempt to poison any intermediate web caches, or conduct cross-site scripting attacks against browsers that support "Server Push".
A remote user can supply a specially crafted URL to browse graphs generated by the Old Charts system [CVE-2010-3764]. This can be exploited to see product names and charted information about those products.
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Bugzilla software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.|
A remote user can create a URL that, when loaded by the target user, will cause arbitrary content to be displayed.
A remote user may be able to poison any intermediate web caches with arbitrary content.
A remote user can view graphs from Old Charts.
The vendor has issued a fix (3.2.9, 3.4.9, 3.6.3, 4.0rc1).|
The vendor's advisory is available at:
Vendor URL: www.bugzilla.org/security/3.2.8/ (Links to External Site)
Access control error, Input validation error|
|Underlying OS: Linux (Any), UNIX (Any)|
Source Message Contents
Subject: Security Advisory for Bugzilla 3.2.8, 3.4.8, 3.6.2, and 3.7.3|
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Bugzilla is a Web-based bug-tracking system used by a large number of
software projects. The following security issues have been discovered
* There is a way to inject both headers and content to users, causing
a serious Cross-Site Scripting vulnerability.
* It was possible to see graphs from Old Charts even if you did not
have access to a particular product, and you could browse a
particular URL to see all product names.
* YUI 2.8.1, which shipped with Bugzilla starting with 3.7.x,
contained a security vulnerability. The version of YUI shipped
with Bugzilla 4.0rc1 and above has been updated to 2.8.2.
All affected installations are encouraged to upgrade as soon as
Class: HTTP Response Splitting
Versions: Every Version Before 3.2.9, 3.4.9, 3.6.3, 4.0rc1
Fixed In: 3.2.9, 3.4.9, 3.6.3, 4.0rc1
Description: By inserting a certain string into a URL, it was possible
to inject both headers and content to any browser that
supported "Server Push" (mostly only Gecko-based browsers
like Firefox). This could lead to Cross-Site Scripting
vulnerabilities, and possibly other more dangerous
security issues as well.
CVE Number: CVE-2010-3172
Class: Information Leak
Versions: 2.12 to 3.2.8, 3.4.8, 3.6.2, 3.7.3, 4.1
Fixed In: 3.2.9, 3.4.9, 3.6.3, 4.0rc1
Description: The Old Charts system generated graphs with
predictable names into the "graphs/" directory,
which also could be browsed to see its contents.
This allowed unauthorized users to see product names
and charted information about those products over time.
CVE Number: CVE-2010-3764
Class: Cross-Site Scripting
Versions: 3.7.1 to 3.7.3, 4.1
Fixed In: 4.0rc1
Description: YUI 2.8.1 was vulnerable to a Cross-Site Scripting
vulnerability in certain .swf files. The YUI shipped
with Bugzilla has been updated to 2.8.2.
The fixes for these issues are included in the 3.2.9, 3.4.9, 3.6.3, and
4.0rc1 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 bugzilla.mozilla.org "References" URL for each
Full release downloads, patches to upgrade Bugzilla from previous
versions, and CVS/bzr upgrade instructions are available at:
The Bugzilla team wish to thank the following people/organizations for
their assistance in locating, advising us of, and assisting us to fix
General information about the Bugzilla bug-tracking system can be found
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
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