Archive for janvier 2016

icon_firefox[CVE-2016-1941] Delay following click events in file download dialog too short on OS X


Delay following click events in file download dialog too short on OS X


Announced: January 26, 2016
Reporter: Jordi Chancel
Impact: Moderate
Products: Firefox
Fixed in: Firefox 44


Description

Security researcher Jordi Chancel reported an issue on OS X where the delay between the download dialog getting focus and the button getting enabled was too short. If an attacker is able to induce the user to double-click in a specific location, they can then pass the second click through to the dialog below, leading to unintentional actions such as the running of downloaded software.


Vulnerability demonstration (video):


icon_firefox[CVE-2016-1943] Location Bar Spoofing Risk – scrollto leads to that the location bar is hidden


Location Bar Spoofing Risk – scrollto leads to that the location bar is hidden


Announced: January 26, 2016
Reporter: Jordi Chancel
Impact: High
Products: Firefox
Fixed in: Firefox 44


Description

Security researcher Jordi Chancel reported two issues involving addressbar spoofing.

The first of these is a « high » rated security issue on on Firefox for Android involving the scrollTo() method to scroll a page. In this attack, scrollTo() is used to scroll the addressbar out of view while replacing it with a fake addressbar created by the attacker when a new tab is opened.


Vulnerability demonstration (video):


icon_firefox[CVE-2016-1942] Location bar continues displaying wyciwyg URI and resource URI if user tries to navigate to it manually


Location bar continues displaying wyciwyg URI and resource URI if user tries to navigate to it manually


Announced: January 26, 2016
Reporter: Jordi Chancel
Impact: Low
Products: Firefox
Fixed in: Firefox 44


Description

Security researcher Jordi Chancel reported two issues involving addressbar spoofing.
The second flaw is a « low » rated security issue affecting Desktop Firefox. In this attack, when a URL which is invalid for an internal protocol is pasted into the addressbar, the addressbar contents may be manipulated to show the location of an arbitrary website instead of the one currently loaded. This issue is mitigated by the protocol being prepended to the displayed URL, making the address less likely to be confused with the appended URL.


Vulnerability demonstration (video):