Browser Security News

Firefox suffers from a flaw that allows attackers to manipulate the authentication cookies of virtually any website, a vulnerability Bugzilla has deemed severe. It’s the second major security lapse for the open-source browser in as many days.

The defect, which stems from the way Firefox writes to the "location.hostname" property of the document object model, can be exploited by a specially doctored script that sets variables that normally wouldn’t be accepted when parsing a regular URL, according to researcher Michal Zalewski, who uncovered Monday’s vulnerability as well. Firefox hands out cookies from strangers | Channel Register