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Date:      Mon, 18 Nov 1996 15:42:13 -0500 (EST)
From:      Jeff Aitken <jaitken@cslab.vt.edu>
To:        Don.Lewis@tsc.tdk.com (Don Lewis)
Cc:        freebsd-security@FreeBSD.org
Subject:   Re: BoS: Exploit for sendmail smtpd bug (ver. 8.7-8.8.2).
Message-ID:  <9611182042.AA26448@husky.cslab.vt.edu>
In-Reply-To: <199611181935.LAA16011@salsa.gv.ssi1.com> from "Don Lewis" at Nov 18, 96 11:35:16 am

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Don Lewis writes:
> On Nov 18,  2:16pm, Adam Shostack wrote:
> } Subject: Re: BoS: Exploit for sendmail smtpd bug (ver. 8.7-8.8.2).
> } 
> } 	If network access went through the file system, then 
> } chown smtp /dev/tcp/smtp would give us a known access control
> } mechanism, rather than trying to extend the process table.
> 
> I think mapping network accesses into filesystem space is the way to
> go, but I don't know how to get the semantics right.

Am I mis-remembering things, or is this exactly the sort of thing the
portal filesystem is supposed to provide?  I don't have my 4.4BSD book
handy, but I seem to recall reading about this kind of feature.

-- 
Jeff Aitken 
jaitken@dimension.net




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