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UNIRAS Brief - 736/06 - Gentoo Linux Security Advisory: GLSA 200611-04 - Bugzilla: Multiple Vulnerabilities



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______________________________________________________________________________

 UNIRAS (UK Government CERT) Briefing - 736/06 dated 10.11.06 time 14:00
 UNIRAS is part of NISCC (the UK National Infrastructure Security
 Co-ordination Centre)
______________________________________________________________________________

 UNIRAS material is available from the NISCC website at www.niscc.gov.uk
______________________________________________________________________________

Title
=====

Gentoo Linux Security Advisory: GLSA 200611-04 - Bugzilla: Multiple Vulnerabilities

Detail
======

* Frederic Buclin and Gervase Markham discovered that input passed to
  various fields throughout Bugzilla were not properly sanitized before
  being sent back to users (CVE-2006-5453).


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Gentoo Linux Security Advisory                           GLSA 200611-04
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Bugzilla: Multiple Vulnerabilities
      Date: November 09, 2006
      Bugs: #151563
        ID: 200611-04

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Synopsis
========

Bugzilla is vulnerable to cross-site scripting, script injection, and
request forgery.

Background
==========

Bugzilla is a bug tracking system used to allow developers to more
easily track outstanding bugs in products.

Affected packages
=================

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  www-apps/bugzilla      < 2.18.6                         >= 2.18.6

Description
===========

The vulnerabilities identified in Bugzilla are as follows:

* Frederic Buclin and Gervase Markham discovered that input passed to
  various fields throughout Bugzilla were not properly sanitized before
  being sent back to users (CVE-2006-5453).

* Frederic Buclin and Josh "timeless" Soref discovered a bug when
  viewing attachments in diff mode that allows users not of the
  "insidergroup" to read attachment descriptions. Additionally, it was
  discovered that the "deadline" field is visible to users who do not
  belong to the "timetrackinggroup" when bugs are exported to XML
  (CVE-2006-5454).

* Gavin Shelley reported that Bugzilla allows certain operations to
  be performed via HTTP GET and HTTP POST requests without verifying
  those requests properly (CVE-2006-5455).

* Max Kanat-Alexander discovered that input passed to
  showdependencygraph.cgi is not properly sanitized before being
  returned to users (CVE-2006-5453).

Impact
======

An attacker could inject scripts into the content loaded by a user's
browser in order to have those scripts executed in a user's browser in
the context of the site currently being viewed. This could include
gaining access to privileged session information for the site being
viewed. Additionally, a user could forge an HTTP request in order to
create, modify, or delete bugs within a Bugzilla instance. Lastly, an
unauthorized user could view sensitive information about bugs or bug
attachments.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Bugzilla users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/bugzilla-2.18.6"

References
==========

  [ 1 ] CVE-2006-5453
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5453
  [ 2 ] CVE-2006-5454
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5454
  [ 3 ] CVE-2006-5455
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5455

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200611-04.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5




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Thank you for your contribution.
______________________________________________________________________________

For additional information or assistance, please contact our help desk
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______________________________________________________________________________

UNIRAS wishes to acknowledge the contributions of Gentoo for the
information contained in this briefing.
______________________________________________________________________________

This notice contains information released by the original author.
Some of the information may have changed since it was released. If the
vulnerability affects you, it may be prudent to retrieve the advisory
from the site of the original source to ensure that you receive the most
current information concerning that problem.

Reference to any specific commercial product, process, or service by
trade name, trademark manufacturer, or otherwise, does not constitute or
imply its endorsement, recommendation, or favouring by UNIRAS or NISCC.
The views and opinions of authors expressed within this notice shall not
be used for advertising or product endorsement purposes.

Neither UNIRAS or NISCC shall also accept responsibility for any errors
or omissions contained within this briefing notice. In particular, they
shall not be liable for any loss or damage whatsoever, arising from or
in connection with the usage of information contained within this
notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams
(FIRST) and has contacts with other international Incident Response
Teams (IRTs) in order to foster cooperation and coordination in incident
prevention, to prompt rapid reaction to incidents, and to promote
information sharing amongst its members and the community at large.
______________________________________________________________________________

<End of UNIRAS Briefing>

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