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linux-kernel: Re: [PATCH] Version 3 (2.6.23-rc8) Smack: Simplifi

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

From: Derek Fawcus <dfawcus_at_nospam>
Date: Thu Oct 04 2007 - 23:44:54 GMT
To: Chuck Ebbert <>

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...

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