His team Project Fission της Mozilla ετοιμάζεται να εφαρμόσει ένα νέο χαρακτηριστικό ασφάλειας στον Firefox που θα απομονώνει τις ιστοσελίδες. Κάτι παρόμοιο χρησιμοποιεί και η Google στην έκδοση 67 του προγράμματος περιήγησης Chrome, για να μετριάσει τις side-channel επιθέσεις από κακόβουλους ιστότοπους.
The security flaws that Mozilla wants to protect the Firefox user with Project Fission were reported in Google Project Zero on 3 January of 2018.
The vulnerabilities Spectre (variants 1 and 2) and Meltdown (variant 3) allow attackers to abuse CPU data buffering time “to leak information.”
The security holes mentioned above were immediately patched by Firefox's security teams, but it was noticed that with new attacks through other channels (side-channels) they could affect Firefox users when they visit a malicious websiteσελίδα.
According to Nika Layzell of Mozilla Project Fission:
Our goal is to create a browser that will not only be secure against known security vulnerabilities, but will also have layers of built-in defense against potential future vulnerabilities. To achieve this, we need to refresh the Firefox architecture to support the complete isolation of the site.
We call this the next step in the evolution of Firefox process model "Project Fission". With Project Fission, we will "split the individual", dividing the cross-site iframes into different processes from the parent frame (s.s .: the frame that contains them).
“This means that even if a Specter attack is launched by a malicious website, the data from other sites would generally not be loaded in the same process, so there would be much less data available to the attacker,” according to Google's Charlie Reis.
The first implementation of Project Fission in Firefox should be seen at the end of February 2019. Let's wait to see if all this affects the performance of the browser.
