linux-kernel - Re: [GIT PULL] Load keys from signed PE binaries

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Message-ID: <20130227175947.GA16966@thunk.org>
Date:	Wed, 27 Feb 2013 12:59:47 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Chris Friesen <chris.friesen@...band.com>
Cc:	Peter Jones <pjones@...hat.com>, Dave Airlie <airlied@...il.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	David Howells <dhowells@...hat.com>,
	Florian Weimer <fw@...eb.enyo.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Josh Boyer <jwboyer@...hat.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Kees Cook <keescook@...omium.org>, keyrings@...ux-nfs.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] Load keys from signed PE binaries

On Wed, Feb 27, 2013 at 11:36:09AM -0600, Chris Friesen wrote:
> ...
> At this point you've got a running infected Win8 install that is
> running on Secure Boot hardware but is actually running malware.
> 
> Admittedly this would be tricky to do reliably in a way that the
> user doesn't notice, so it may not actually be a real-world threat.

That's another thing which is extraordinarily vague.  What counts as
"user doesn't notice"?  If a whole bunch of kernel messages scroll by,
is that enough?  What if a Penguin jpg shows up for a minimum 5
seconds?  15 seconds?  30 seconds?

						- Ted


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