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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:
Mozilla Firefox Lets Remote Users Spoof the URL Location Bar
SecurityTracker Alert ID:  1024850
SecurityTracker URL:
CVE Reference:   CVE-2010-3774   (Links to External Site)
Date:  Dec 10 2010
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.5 prior to 3.5.16, 3.6 prior to 3.6.13
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can spoof the location bar.

A remote user can inject arbitrary content into the error page generated when a network or certificate error has occurred. This can be exploited to spoof the location bar.

Google security researcher Michal Zalewski reported this vulnerability.

Impact:   A remote user can spoof the location bar.
Solution:   The vendor has issued a fix (3.5.16, 3.6.13).

The vendor's advisory is available at:

Vendor URL: (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.
Dec 10 2010 (Red Hat Issues Fix) Mozilla Firefox Lets Remote Users Spoof the URL Location Bar   (
Red Hat has issued a fix for Red Hat Enterprise Linux 4, 5, and 6.

 Source Message Contents

Date:  Fri, 10 Dec 2010 05:38:20 +0000
Subject:  Mozilla Firefox


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