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List:       debian-devel
Subject:    Re: setuid/setgid binaries contained in the Debian repository.
From:       Matt Zimmerman <mdz () debian ! org>
Date:       2003-08-11 14:34:37
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On Mon, Aug 11, 2003 at 04:03:38PM +0200, Emile van Bergen wrote:

> On Mon, Aug 11, 2003 at 09:41:49AM -0400, Matt Zimmerman wrote:
> > It sounds like what would be better would be a sandboxable virtual machine
> > with its own instruction set, preferably one which could be linked into your
> > program.  guile can't be easily restricted as far as I know.  java can, but
> > I don't know of any implementations which can be easily used in this way.
> 
> IMHO, you're only thinking that far because for some reason you don't
> trust the separation between uids offered by standard unix, or that it's
> impossible to make the transition from one uid to another securely.
> 
> Remember, if that cannot be trusted, we're all toast anyway. A *lot* of
> unix security depends on this.

No, I am thinking that far because I understand setuid semantics and Unix
security, and their weaknesses.

-- 
 - mdz


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