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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox -moz-binding CSS Property Bug Lets Remote Users Bypass Security Checks
SecurityTracker Alert ID:  1021189
SecurityTracker URL:  http://securitytracker.com/id/1021189
CVE Reference:   CVE-2008-5023   (Links to External Site)
Date:  Nov 13 2008
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.0.0.18, 3.x prior to 3.0.4
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can bypass codebase principal security checks.

A remote user can replace a stylesheet in a signed JAR that uses relative paths and then invoke the -moz-binding property to inject arbitrary scripting code into the JAR file. The code can then be executed with the privileges of the signed JAR (in the security context of arbitrary sites).

SeaMonkey is also affected.

Collin Jackson reported this vulnerability.

Impact:   A remote user can bypass codebase principal security checks to execute arbitrary scripting code in the context of an arbitrary site.
Solution:   The vendor has issued fixes (2.0.0.18, 3.0.4).

The vendor's advisory is available at:

http://www.mozilla.org/security/announce/2008/mfsa2008-57.html

Vendor URL:  www.mozilla.org/security/announce/2008/mfsa2008-57.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 13 2008 (Red Hat Issues Fix) Mozilla Firefox -moz-binding CSS Property Bug Lets Remote Users Bypass Security Checks
Red Hat has released a fix for Red Hat Enterprise Linux 4 and 5.
Nov 13 2008 (Mozilla Issues Fix for SeaMonkey) Mozilla Firefox -moz-binding CSS Property Bug Lets Remote Users Bypass Security Checks
Mozilla has issued a fix for Mozilla SeaMonkey.
Nov 13 2008 (Red Hat Issues Fix for SeaMonkey) Mozilla Firefox -moz-binding CSS Property Bug Lets Remote Users Bypass Security Checks
Red Hat has released a fix for SeaMonkey for Red Hat Enterprise Linux 2.1, 3, and 4.



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