linux-kernel - Re: [RFC] Second attempt at kernel secure boot support

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Date:	Thu, 1 Nov 2012 16:26:51 +0000
From:	Matthew Garrett <mjg@...hat.com>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
Cc:	Eric Paris <eparis@...isplace.org>, Jiri Kosina <jkosina@...e.cz>,
	Oliver Neukum <oneukum@...e.de>,
	Chris Friesen <chris.friesen@...band.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Josh Boyer <jwboyer@...il.com>, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org
Subject: Re: [RFC] Second attempt at kernel secure boot support

On Thu, Nov 01, 2012 at 03:06:30PM +0000, James Bottomley wrote:

> But surely that's fanciful ... you've already compromised windows to get
> access to the ESP.  If you've done it once, you can do it again until
> the exploit is patched.  There are likely many easier ways of ensuring
> persistence than trying to install a full linux kernel with a
> compromised resume system.

There's a pretty strong distinction between "Machine is exploited until 
exploit is patched" and "Machine is exploited until drive is replaced".

-- 
Matthew Garrett | mjg59@...f.ucam.org
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