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Path: utzoo!linus!decvax!ittvax!dcdwest!sdcsvax!sdccsu3!muller
From: muller@sdccsu3.UUCP
Newsgroups: net.unix
Subject: Re:  Why 4BSD 'stty' uses stdout instead of stdin
Message-ID: <2190@sdccsu3.UUCP>
Date: Sun, 19-Aug-84 01:21:44 EDT
Article-I.D.: sdccsu3.2190
Posted: Sun Aug 19 01:21:44 1984
Date-Received: Tue, 21-Aug-84 04:27:37 EDT
References: <12450@sri-arpa.UUCP>
Organization: U.C. San Diego, Computer Center
Lines: 7

If you have any kind of security requirements for protecting users from each
other and you are running 4.2, you *must* prevent general user programs from
being able to perform an open on another users tty. There are a lot of real
nasty things that can be done once you have that open file descriptor.

	Keith Muller
	UCSD Computer Center