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

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Message-Id: <201110042123.11017.rjw@sisk.pl>
Date:	Tue, 4 Oct 2011 21:23:10 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Ted Ts'o" <tytso@....edu>, Josh Triplett <josh@...htriplett.org>,
	linux-kernel@...r.kernel.org, Jiri Kosina <jkosina@...e.cz>
Subject: Re: kernel.org status: establishing a PGP web of trust

On Tuesday, October 04, 2011, H. Peter Anvin wrote:
> On 10/03/2011 09:49 PM, Ted Ts'o wrote:
> > 
> > Note that if your laptop allows incoming ssh connections, and you
> > logged into master.kernel.org with ssh forwarding enabled, your laptop
> > may not be safe.  So be very, very careful before you assume that your
> > laptop is safe.  At least one kernel developer, after he got past the
> > belief, "surely I could have never had my machine be compromised",
> > looked carefully and found rootkits on his machines.
> > 
> >        		     	   	       - Ted
> 
> By the way, I'm now pretty convinced that allowing inbound ssh on
> laptops (which is the default on all the mainline Linux distros as far
> as I know) is seriously broken... laptops get connected to *extremely*
> insecure networks on just way too regular a basis.

That's very true.

I'd recommend everyone to run a full nmap scan of his/her laptop
and to block everything it finds open before using it outside of the home
network.

Thanks,
Rafael
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