virtual box and video isolation
norman.feske at ...1...
Mon Mar 23 18:50:22 CET 2015
> I was wondering how the virtualbox implementation on top of
> genode/nova fares against this type of attack:
> is 3d acceleration used? is there strong isolation of the video memory?
our version of VirtualBox does not use/support hardware-accelerated
graphics. We needed a GPU driver first.
Thanks for the link. It is important to keep such attack vectors in
mind. It also bears the question: Does your BIOS clear all physical
memory at boot time? If not, couldn't an attacker with physical access
to a machine (i.e., a stolen laptop that may still be locked with a
screensaver) reset the machine, boot a custom OS from a USB stick, and
scan the memory for credentials? What would be a viable defense against
such a scenario?
Dr.-Ing. Norman Feske
http://www.genode-labs.com · http://genode.org
Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth
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