Great Circle Associates Firewalls
(September 1996)
 

Indexed By Date: [Previous] [Next] Indexed By Thread: [Previous] [Next]

Subject: RE: S/key & secureid
From: Jon Tegethoff <jet @ cypher-sage . com>
Date: Tue, 3 Sep 1996 17:02:10 -0500
To: "'firewalls @ GreatCircle . COM'" <firewalls @ GreatCircle . COM>, "'Frank Willoughby'" <frankw @ in . net>

Frank Willoughby said:

>Hopefully, the SecurID connection is being used to authenticate internal
>users before they go to the Internet and not for incoming connections.
>
>Using SecurID (or Digital Pathways, S/Key, etc) is *lethal* if you are 
>planning on using it to authenticate users from the Internet who wish 
>to access a system on your internal network which is protected by the
>firewall.  The reason is that the user may have his/her session hijacked
>by an attacker.

>Please note that this is *NOT* a security problem with Gauntlet or any 
>other firewall.  The problem is relying on authentication-only mechanisms 
>for protection.  Implementing User->Firewall encryption will help to solve
>this problem.
>
>Again, I strongly advise against using SecurID (or any other authentication-
>only solution) for incoming Internet connections to an internal system.

      Since there is a significant reason in many cases to have remote users 
communicating through a firewall, what do you currently consider the best 
method with todays technology.  My preference is a combination of two factor 
authentication (like SecurID or one of the challenge/response cards) used 
together with an encryption tunnel like Raptor Eagle's).

Jon Tegethoff


Indexed By Date Previous: Re: NT port activity list
From: Bill Stout <bill . stout @ hidata . com>
Next: [no subject]
From: Ben @ explorateur . quaternet . fr
Indexed By Thread Previous: Re: S/key & secureid
From: Frank Willoughby <frankw @ in . net>
Next: RE: S/key & secureid
From: Jüri Kaljundi <jk @ stallion . ee>

Google
 
Search Internet Search www.greatcircle.com