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  (5.65c/IDA-1.4.4 for bugtraq () crimelab com); Thu, 9 Feb 1995 09:28:53 +0100
From: "Ivan Kopacik (MFF)" <extivko>
Message-Id: <199502090828.AA12258 () savba savba sk>
Subject: bug in Ultrix 4.2
To: bugtraq () crimelab com
Date: Thu, 9 Feb 1995 09:28:53 +0100 (MET)
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This is probably nothing new, but anyway... ( Ultrix 4.2 )

Example:

I'm on machine mrkva.
I do telnet hrasok
on hrasok I'll find out, which process I'm up to:

in this case - 

root      2987  0.0  2.1  384  172 p4 S      0:00 login -h mrkva.bla.org

now on machine hrasok I'll do

line < /dev/ttyp4

on mrkva ( where I'm openin telnet session to hrasok ) I enter login
and password.

On hrasok I'll get password ( as a output from line < /dev/ttyp4 )

I think the problem is that telnetd does not check pseudo ttys
whether they are already opened or not.

Is there any simple patch to disable this ,,feature'' ?

thanks
ivan