linux-kernel - Re: kernel.org status: establishing a PGP web of trust

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Date:	Thu, 6 Oct 2011 00:25:26 +0300
From:	Adrian Bunk <bunk@...sta.de>
To:	Greg KH <gregkh@...e.de>
Cc:	Ted Ts'o <tytso@....edu>, "Frank Ch. Eigler" <fche@...hat.com>,
	Valdis.Kletnieks@...edu, "H. Peter Anvin" <hpa@...or.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: kernel.org status: establishing a PGP web of trust

On Wed, Oct 05, 2011 at 01:09:44PM -0700, Greg KH wrote:
> On Wed, Oct 05, 2011 at 10:50:24PM +0300, Adrian Bunk wrote:
> > [1] I did check what Greg recommended in his email, but I'm not gonna 
> >     wipe my complete installation (including wiping /home) unless 
> >     someone can point at something indicating that there's a break-in
> >     at my machine.
> 
> What would you consider "proof" of a break-in on your machine that would
> cause you to be willing to reinstall it?

There is no clear definition.

Had debsums told me that /bin/bash was modified I would have been quite 
convinced.

Externally observed suspicious behavior of my machine I could not explain.

Or many other things - after all I am a person with some basic 
understanding of security and how computers work.

When I am convinced there was a break-in on my machine, I also have to 
assume that all important and not so important accounts I have anywhere 
(from unbelievably many Bugzilla accounts to machines where I have root
access) are also compromised, and have to act accordingly.

It is possible to convince me that there was likely a break-in on my 
machine, but I am not assuming the worst case automatically, and for 
going through that horror of assuming it happened I need to see 
something clearly pointing at my machine.

> greg k-h

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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