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- From: ajs@hpfcso.FC.HP.COM (Alan Silverstein)
- Newsgroups: comp.sys.hp
- Subject: Re: Secure telnet wanted - no shell escapes.
- Message-ID: <7371459@hpfcso.FC.HP.COM>
- Date: 10 Nov 92 18:49:24 GMT
- References: <6696@m1.cs.man.ac.uk>
- Organization: Hewlett-Packard, Fort Collins, CO, USA
- Lines: 13
-
- > I'm looking for either an executable or the source of a version of
- > telnet that I can use on HP-UX and which doesn't allow shell escapes.
-
- I assume you mean a shell escape from the telnet session back to the
- system on which telnet was invoked. I don't know of such a version, but
- I did observe this:
-
- SHELL=/dev/null telnet foo
-
- Now if I press ^] (the telnet escape character) and then "! date" while
- in telnet command input mode, I get a complaint that permission is
- denied. To make this work requires that you can securely set the SHELL
- value passed to telnet on the client system. Will it work for you?
-