Security Incidents mailing list archives

Re: Attacks against SSH?


From: Skip Carter <skip () taygeta com>
Date: Wed, 05 Dec 2001 15:31:55 -0800


bluebottle:~ >sh
$ ssh -l`perl -e '{print "A"x90000}'`130.216.1.228
Usage: ssh [options] host [command]
Options:
  -l user     Log in using this user name.
  -n          Redirect input from /dev/null.
  -A          Enable authentication agent forwarding.
  -a          Disable authentication agent forwarding.


Now we now get a usage error from the local ssh client.  Which ssh 
client were you using Michal?

  With Openssh 2.9.9, the following works:

  ssh -v <hostname> perl -e '{print "A"x90000}'

   whoops, I misread the intent of the command line!
   The orignal command (with the '-l') is correct if a space is added before 
the hostname/ip



   Never mind.

-- 
 Dr. Everett (Skip) Carter      Phone: 831-641-0645 FAX:  831-641-0647
 Taygeta Scientific Inc.        INTERNET: skip () taygeta com
 1340 Munras Ave., Suite 314    WWW: http://www.taygeta.com
 Monterey, CA. 93940            












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