OSEC

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Subject: Re: Securax Advisory 13
From: Fyodor (fygraveSCORPIONS.NET)
Date: Tue Jan 02 2001 - 13:19:13 CST


> no source code to audit. This document is subject to change
> without
> prior notice.
>
> I. Problem Description
> -----------------------
>
> when someone telnets to a unix system, the tty that will be assigned to him
> will be writable for any user on the system. However, when he is logged in,
> his tty will not be writable for all users. So if someone would write data
> to
> a tty that is currently used by someone who's logging in, that person won't
> be able to log in.
>

Wrong, he will be. Having the tty w/w is not a good thing however, you
could throw some junk on a user's screen which could mess-up terminal
settings pretty badly.

-F

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