nanog mailing list archives

Re: SSH on the router - was( IT security people sleep well)


From: "Edward B. Dreger" <eddy+public+spam () noc everquick net>
Date: Mon, 7 Jun 2004 18:07:19 +0000 (GMT)


Date: Mon, 7 Jun 2004 11:39:57 +0100
From: Michael.Dillon@rad...


Consider the case of a staff member lounging in the backyard on
a lazy Saturday afternoon with their iBook. They have an 802.11
wireless LAN at home so they telnet to their Linux box in the
kitchen and run SSH to the router. Ooops!

I see.  SSH doesn't solve all problems, and therefore must be
worthless.

Now let's look at kerberized telnet.  Someone logs in via
kerberized telnet over an insecure network, then decides to
change his/her password.  Oops.

Someone could screw up OTP SSH+KRB5 logins over IPSec if using a
compromised box with a keylogger installed.  Does that mean each
of these technologies is worthless?


The only way to protect against that sort of situation is to
encourage everyone to be security-minded and not take risks
where the network is concerned.

Definitely.  Alas, I'm seeing more "it won't happen to me" than
in the past.  It's almost as if the "logic" is "I hear more about
this, but haven't noticed anything awful, and therefore must be
invincible."


Eddy
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