3 ms·

I know that Volvos have two separate CAN buses, one for important safety critical systems and one for interior functions and infotainment. They are joined with

I know that Volvos have two separate CAN buses, one for important safety critical systems and one for interior functions and infotainment. They are joined with a proxy/firewall that provides separation and limits the functionality available between the two. I'm guessing this attack would only work in this case if the attacker could physically access the OBD port to gain entry to the safety critical bus.

shawn-butler 9y ago
... All it takes is a specially-crafted attack device, introduced to the car’s CAN through local access, and the reuse of frames already circulating in the CAN rather than injecting new ones (as previous attacks in this manner have done)....
ellisv 9y ago
I believe devices on the CAN can typically see, and therefore spoof or simulate, packets from other devices. I'm not sure that physical access is really necessary because modern vehicles ship with networking capabilities (e.g. OnStar) that already have access to the CAN. [1] http://opengarages.org/handbook/ebook/ http://opengarages.org/handbook/ebook/