From: Pavel Machek <pavel@ucw.cz>
To: Bernd Eckenfels <be-mail2006@lina.inka.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: patch to make Linux capabilities into something useful (v 0.3.1)
Date: Fri, 8 Sep 2006 12:45:50 +0200 [thread overview]
Message-ID: <20060908104550.GA920@elf.ucw.cz> (raw)
In-Reply-To: <20060908012201.GA14280@lina.inka.de>
Hi!
> > If attacker already has priviledge foo, he can just go use it. He does
> > not have to exec() poor program not expecting to get priviledge foo,
> > then abusing it.
>
> It is not about attackers. It is about normal usage. If you spawn a program,
> it might behave wrong since it does not know that it is priveledged. For
> example a network daemon might start a child process which interacts with
> the user, and forgets to drop priveldges for it.
Ok, something like that is possible, at least it is not a security
problem.
> > Sanitized here means "all regular capabilities set, all others
> > cleared".
>
> Yes, however I thought this was exactly what the patch is not doing?
Yep, it needs to be fixed ;-).
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2006-09-08 10:46 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-05 21:26 patch to make Linux capabilities into something useful (v 0.3.1) David Madore
2006-09-06 0:27 ` Casey Schaufler
2006-09-06 10:06 ` David Madore
2006-09-06 13:26 ` David Madore
2006-09-07 0:11 ` Casey Schaufler
2006-09-07 0:32 ` David Madore
2006-09-07 1:01 ` Casey Schaufler
2006-09-07 1:29 ` David Wagner
2006-09-07 16:00 ` Casey Schaufler
2006-09-07 18:33 ` David Wagner
2006-09-07 17:34 ` David Madore
2006-09-07 19:38 ` Bernd Eckenfels
2006-09-07 23:00 ` Pavel Machek
2006-09-08 1:22 ` Bernd Eckenfels
2006-09-08 10:45 ` Pavel Machek [this message]
2006-09-08 16:08 ` Casey Schaufler
2006-09-08 14:39 ` Pavel Machek
2006-09-08 19:10 ` Bernd Eckenfels
2006-09-07 22:54 ` Pavel Machek
2006-09-08 4:10 ` David Madore
2006-09-08 10:52 ` Pavel Machek
2006-09-08 22:51 ` David Madore
2006-09-09 0:11 ` Casey Schaufler
2006-09-09 11:59 ` Pavel Machek
2006-09-09 11:40 ` Pavel Machek
2006-09-10 10:41 ` David Madore
2006-09-10 13:06 ` Pavel Machek
2006-09-10 14:25 ` capability inheritance (was: Re: patch to make Linux capabilities into something useful (v 0.3.1)) David Madore
2006-09-10 22:42 ` Pavel Machek
2006-09-11 16:00 ` Casey Schaufler
2006-09-11 17:39 ` David Madore
2006-09-09 0:59 ` patch to make Linux capabilities into something useful (v 0.3.1) David Wagner
2006-09-09 12:49 ` David Madore
2006-09-09 23:18 ` Theodore Tso
2006-09-10 10:13 ` David Madore
2006-09-10 12:36 ` Pavel Machek
2006-09-10 23:24 ` Theodore Tso
2006-09-11 8:09 ` Pavel Machek
2006-09-06 18:25 ` Serge E. Hallyn
2006-09-06 22:27 ` David Madore
2006-09-07 0:04 ` David Madore
2006-09-07 23:06 ` Serge E. Hallyn
2006-09-08 4:16 ` David Madore
2006-09-07 6:43 ` Jan Engelhardt
2006-09-07 23:02 ` Serge E. Hallyn
2006-09-08 1:08 ` David Madore
2006-09-08 1:31 ` Serge E. Hallyn
2006-09-08 21:45 ` David Madore
2006-09-07 18:21 ` James Antill
2006-09-07 18:33 ` Kyle Moffett
2006-09-07 20:05 ` James Antill
2006-09-08 4:00 ` David Madore
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