From: Casey Schaufler <casey@schaufler-ca.com>
To: Joshua Brindle <method@gentoo.org>, David Madore <david.madore@ens.fr>
Cc: Pavel Machek <pavel@ucw.cz>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linux Kernel mailing-list <linux-kernel@vger.kernel.org>,
LSM mailing-list <linux-security-module@vger.kernel.org>
Subject: Re: [PATCH 3/4] security: capabilities patch (version 0.4.4), part 3/4: introduce new capabilities
Date: Mon, 18 Sep 2006 09:02:17 -0700 (PDT) [thread overview]
Message-ID: <20060918160217.97076.qmail@web36601.mail.mud.yahoo.com> (raw)
In-Reply-To: <1158579966.8680.24.camel@twoface.columbia.tresys.com>
--- Joshua Brindle <method@gentoo.org> wrote:
> And that is just practical stuff, there are still
> problems with
> embedding policy into binaries all over the system
> in an entirely
> non-analyzable way, and this extends to all
> capabilities, not just the
> open() one.
Your assertion that directly associating
the capabilities with the binary cannot
be analysed is demonstrably incorrect,
reference Common Criteria validation
reports CCEVS-VR-02-0019 and CCEVS-VR-02-0020.
The first system I took through evaluation
(that is, independent 3rd party analysis) stored
security attributes in a file while the second
and third systems attached the attributes
directly (XFS). The 1st evaluation required
5 years, the 2nd 1 year. It is possible that
I just got a lot smarter with age, but I
ascribe a significant amount of the improvement
to the direct association of the attributes
to the file.
Casey Schaufler
casey@schaufler-ca.com
next prev parent reply other threads:[~2006-09-18 16:02 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-10 13:37 [PATCH 1/4] security: capabilities patch (version 0.4.4), part 1/4: enlarge capability sets David Madore
2006-09-10 13:41 ` [PATCH 2/4] security: capabilities patch (version 0.4.4), part 2/4: change inheritance semantics David Madore
2006-09-10 13:42 ` [PATCH 3/4] security: capabilities patch (version 0.4.4), part 3/4: introduce new capabilities David Madore
2006-09-10 16:23 ` Alan Cox
2006-09-10 16:09 ` David Madore
2006-09-11 8:06 ` James Morris
2006-09-11 12:03 ` Joshua Brindle
2006-09-11 16:22 ` Casey Schaufler
2006-09-17 18:06 ` Pavel Machek
2006-09-10 17:56 ` Joshua Brindle
2006-09-10 20:03 ` David Madore
2006-09-11 6:10 ` Jan Engelhardt
2006-09-11 6:51 ` David Madore
2006-09-11 13:42 ` Stephen Smalley
2006-09-17 18:14 ` Pavel Machek
2006-09-17 20:39 ` Joshua Brindle
2006-09-17 21:16 ` David Madore
2006-09-18 11:46 ` Joshua Brindle
2006-09-18 11:58 ` David Madore
2006-09-18 12:04 ` Pavel Machek
2006-09-18 12:12 ` Joshua Brindle
2006-09-18 16:02 ` Casey Schaufler [this message]
2006-09-19 0:25 ` Joshua Brindle
2006-09-19 3:46 ` Casey Schaufler
2006-09-19 4:09 ` Joshua Brindle
2006-09-19 15:54 ` Casey Schaufler
2006-09-19 18:27 ` Pavel Machek
2006-09-10 13:44 ` David Madore
2006-09-10 13:46 ` [PATCH 4/4] security: capabilities patch (version 0.4.4), part 4/4: add filesystem support David Madore
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