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Date:      25 Sep 2002 15:10:40 -0400
From:      Bob Fleck <bob@securesoftware.com>
To:        Matt Piechota <piechota@argolis.org>
Cc:        Anthony Schneider <anthony@x-anthony.com>, freebsd-security@FreeBSD.ORG
Subject:   Re: screen question/problem.
Message-ID:  <1032981041.399.8.camel@mcp.securesoftware.com>
In-Reply-To: <20020925144631.E90374-100000@cithaeron.argolis.org>
References:  <20020925144631.E90374-100000@cithaeron.argolis.org>

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On Wed, 2002-09-25 at 14:53, Matt Piechota wrote:
> On 25 Sep 2002, Bob Fleck wrote:
> 
> > You should _not_ make screen setuid root.  Anyone who uses screen
> > could then act as root, which would be bad.
> > Make the server program setuid root instead.
> 
> Screen likes to be root so it can do things like update utmp (or wtmp,
> whichever).  Unless you find a bug, it won't let normal people becomre
> root, as it knows enough drop into the calling user's permissions before
> running a shell.

Bah, you're right, wasn't thinking before I sent that.



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