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

[GLSA]

Gentoo Linux Security Advisory

Title: Mozilla Suite, Mozilla Firefox: Remote compromise (GLSA 200505-11)
Severity: normal
Exploitable: remote
Date: May 15, 2005
Bug(s): #91859, #92393, #92394
ID: 200505-11

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: www-client/mozilla-firefox
Vulnerable: < 1.0.4
Unaffected: >= 1.0.4
Architectures: All supported architectures

Package: www-client/mozilla-firefox-bin
Vulnerable: < 1.0.4
Unaffected: >= 1.0.4
Architectures: All supported architectures

Package: www-client/mozilla
Vulnerable: < 1.7.8
Unaffected: >= 1.7.8
Architectures: All supported architectures

Package: www-client/mozilla-bin
Vulnerable: < 1.7.8
Unaffected: >= 1.7.8
Architectures: All 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: