Bugtraq mailing list archives
Re: SSH & xauth
From: OFriedrichs () SECURITY-FOCUS COM (Oliver Friedrichs)
Date: Fri, 25 Feb 2000 14:17:26 -0800
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
All children of the SSH connection are able to tunnel X11 sessions through the X tunnel to the client X11 session. This is accomplished by running xauth upon logging in.
I'm really suprised this is still the default. I've heard mention of this at least 4 years ago, and have seen trojaned SSH servers around _since then_ that do logging of client X11 keystrokes - probably the best place to accomplish this. The problem seems to be that the authors have not figured out that this isn't a good default, perhaps for convenience's sake. This suprises me, since people DO know about this. I think the argument is really convenience vs. security (well, thats always the argument isn't it?). alias ssh="ssh -x" - - Oliver -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.2 for non-commercial use <http://www.pgp.com> iQA/AwUBOLb+Bcm4FXxxREdXEQJjLACgoGiRtmw83fuRGq45uCH2sEq0A4EAnRdx 10/rEK4mQWSWQOXdgu+iWp3D =/XuK -----END PGP SIGNATURE-----
Current thread:
- Re: SSH & xauth, (continued)
- Re: SSH & xauth David Terrell (Feb 25)
- Re: SSH & xauth Robert Watson (Feb 25)
- Re: SSH & xauth Lionel Cons (Feb 28)
- Re: SSH & xauth David Pybus (Feb 26)
- Re: SSH & xauth Robert Watson (Feb 28)
- xterm log file vulnerability Morten Welinder (Feb 29)
- false alarms by real secure Danton Nunes (Feb 29)
- New ZZ Posted Simple Nomad (Feb 29)
- DOS in Trendmicro OfficeScan cerberus (Feb 26)
- Re: SSH & xauth Cy Schubert - ITSD Open Systems Group (Feb 27)
- Re: SSH & xauth Oliver Friedrichs (Feb 25)
- Re: SSH & xauth Theo de Raadt (Feb 27)
- Re: SSH & xauth Cy Schubert - ITSD Open Systems Group (Feb 28)
- Serv-U FTP-Server v2.4a showing real path Berk Ulsoy (Feb 28)
- Re: SSH & xauth Robert Watson (Feb 28)
- Re: SSH & xauth Niels Provos (Feb 28)
- Re: SSH & xauth Theo de Raadt (Feb 27)
- Re: SSH & xauth Brian (Feb 28)
- Re: SSH & xauth Robert Watson (Feb 28)