linux-kernel - Re: [PATCH] Version 3 (2.6.23-rc8) Smack: Simplified Mandatory Access Control Kernel

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Message-ID: <20071005004454.A10105@mrwint.cisco.com>
Date:	Fri, 5 Oct 2007 00:44:54 +0100
From:	Derek Fawcus <dfawcus@...co.com>
To:	Chuck Ebbert <cebbert@...hat.com>
Cc:	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Version 3 (2.6.23-rc8) Smack: Simplified Mandatory Access Control Kernel

On Thu, Oct 04, 2007 at 07:18:47PM -0400, Chuck Ebbert wrote:
> > I ran firefox setuid to a different (not my main user),  uid+gid,  gave
> > my main account that gid as a supplemental group,  and gave that uid
> > access to the X magic cookie.
> 
> You need to use runxas to get any kind of real security.

Interesting script - sad how everyone reinvents equivalent things.

I had been experimenting with running the whole lot under Xnest,
with two extra users - one for the Xnest which had the main X
cookie, and another for the browser.  But found that it was just
too awkward (since I use multiple browser windows as well a tabs).

So I ended up trading a small security gain vs usablity.

The other thing I started playing with was the NX version of Xnest,
since it allows for a rootless server...

DF
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