[ GLSA 200505-11 ] Mozilla Suite, Mozilla Firefox: Remote compromise

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200505-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Mozilla Suite, Mozilla Firefox: Remote compromise
      Date: May 15, 2005
      Bugs: #91859, #92393, #92394
        ID: 200505-11

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Synopsis
========

Several vulnerabilities in the Mozilla Suite and Firefox allow an
attacker to conduct cross-site scripting attacks or to execute
arbitrary code.

Background
==========

The Mozilla Suite is a popular all-in-one web browser that includes a
mail and news reader. Mozilla Firefox is the next-generation browser
from the Mozilla project.

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

    -------------------------------------------------------------------
     Package                         /  Vulnerable  /       Unaffected
    -------------------------------------------------------------------
  1  www-client/mozilla-firefox           < 1.0.4             >= 1.0.4
  2  www-client/mozilla-firefox-bin       < 1.0.4             >= 1.0.4
  3  www-client/mozilla                   < 1.7.8             >= 1.7.8
  4  www-client/mozilla-bin               < 1.7.8             >= 1.7.8
    -------------------------------------------------------------------
     4 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

The Mozilla Suite and Firefox do not properly protect "IFRAME"
JavaScript URLs from being executed in context of another URL in the
history list (CAN-2005-1476). The Mozilla Suite and Firefox also fail
to verify the "IconURL" parameter of the "InstallTrigger.install()"
function (CAN-2005-1477). Michael Krax and Georgi Guninski discovered
that it is possible to bypass JavaScript-injection security checks by
wrapping the javascript: URL within the view-source: or jar:
pseudo-protocols (MFSA2005-43).

Impact
======

A malicious remote attacker could use the "IFRAME" issue to execute
arbitrary JavaScript code within the context of another website,
allowing to steal cookies or other sensitive data. By supplying a
javascript: URL as the "IconURL" parameter of the
"InstallTrigger.Install()" function, a remote attacker could also
execute arbitrary JavaScript code. Combining both vulnerabilities with
a website which is allowed to install software or wrapping javascript:
URLs within the view-source: or jar: pseudo-protocols could possibly
lead to the execution of arbitrary code with user privileges.

Workaround
==========

Affected systems can be protected by disabling JavaScript. However, we
encourage Mozilla Suite or Mozilla Firefox users to upgrade to the
latest available version.

Resolution
==========

All Mozilla Firefox users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-1.0.4"

All Mozilla Firefox binary users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose 
">=www-client/mozilla-firefox-bin-1.0.4"

All Mozilla Suite users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/mozilla-1.7.8"

All Mozilla Suite binary users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/mozilla-bin-1.7.8"

References
==========

  [ 1 ] CAN-2005-1476
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1476
  [ 2 ] CAN-2005-1477
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1477
  [ 3 ] Mozilla Foundation Security Advisory 2005-43
        http://www.mozilla.org/security/announce/mfsa2005-43.html

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

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

  http://security.gentoo.org/glsa/glsa-200505-11.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 () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2005 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/2.0

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