linux-kernel - Re: [PATCH] kernel: make /proc/kallsyms mode 400 to reduce ease of attacking

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Message-ID: <20101123172437.GB8412@ucw.cz>
Date:	Tue, 23 Nov 2010 18:24:37 +0100
From:	Pavel Machek <pavel@....cz>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Kyle Moffett <kyle@...fetthome.net>,
	Marcus Meissner <meissner@...e.de>,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	tj@...nel.org, akpm@...l.org, hpa@...or.com, w@....eu,
	alan@...rguk.ukuu.org.uk
Subject: Re: [PATCH] kernel: make /proc/kallsyms mode 400 to reduce ease of
 attacking

Hi!

> >   (2) Most of the arguments about introducing "uncertainty" into the
> > hacking process are specious as well. [...]
> 
> It is only specious if you ignore the arguments i made in the previous
> discussion. One argument i made was:

Well, but it has downsides, too.

If I know school server is vulnerable, I can get admin to fix it... if
I can see dmesg without being root, I can help with problems. I have
done both before...

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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