update on cisco

[David J Farber <farber () radiomail net>]

----- Forwarded Message


Date: Wed, 8 Sep 1993 09:54:37 -0700
From: Dave Katz <dkatz () cisco com>
Subject: Security
To: farber () central cis upenn edu


This rumor is patently false;  cisco routers do *not* have any sort of
trap door for maintenance--to have such a thing would be a horrific
liability.


The situation described in the original posting was really describing
a problem with packet filtering on TCP port number, which turned out to
be a misconfiguration.  The user has since retracted his message.


We would appreciate it if you could pass this information along.


   Date: Thu, 26 Aug 1993 17:01:27 -0500
   From: farber () central cis upenn edu (David Farber)
   Subject: and you thought you had security -- ha ha
   To: interesting-people () eff org (interesting-people mailing list)


   Date: Wed, 25 Aug 1993 12:56:54 -0700 (PDT)
   From: Al Whaley <Al.Whaley () sunnyside com>
   Subject: Cisco routers


   Rumors abound that Cisco routers have a back door; that is when a TCP port
is
   disabled, it can still be accessed from Cisco's IP number.


   I have personally verified this with the sendmail port.


   Al Whaley        al () sunnyside com       +1-415 322-5411(Tel), -6481 (Fax)
   Sunnyside Computing, Inc., PO Box 60, Palo Alto, CA 94302