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Subject: RE: NT Backoffice "Catapult" firewall certified?
From: Russ <Russ . Cooper @ RC . Toronto . on . ca>
Date: Mon, 1 Jul 1996 12:42:28 -0400
To: David LeBlanc <dleblanc @ iss . net>
Cc: "firewalls @ greatcircle . com" <firewalls @ greatcircle . com>

I promise not to drag this thread out any longer than it absolutely has to, 
but a couple of generalizations by John Betts need to be addressed.

	"Not every person who puts NT boxes (or any other unix box for that 
matter) on the Internet knows about things like disabling guest account, 
setting permissions on shares correctly, etc."

This is unfortunately true, but I fail to see its relevance in this 
discussion. Basically, you are saying that people don't know/aren't 
interested in properly securing their boxes (any OS) despite putting them 
in risky environments, which is one of the reasons this list exists, so we 
all knew that one already. The basics, like disabling guest privileges, 
setting permissions on shares correctly, etc. are just that, basics.

	"My main point against NT firewalls is the following: _as a general rule_ 
people who want NT firewalls, want them because any tom, dick and harry can 
get them going, without extensive knowledge of security and tcp/ip."

Funny, but isn't it true to say that anyone who goes out and buys any 
firewall is doing so because they don't want (don't have the time) to have 
to learn everything that the firewall vendor learned about security and 
tcp/ip? Isn't the whole idea behind a purchased firewall that it should 
make it easier to get them going rather than programming it all yourself?

A Borderware firewall gets plugged in, installed (which any tom, dick, or 
harry could do), and is up and running, with all ports closed. A couple of 
menu selections later and your site has HTTP, SMTP, FTP, NNTP access to the 
Internet, securely. Any idiot could set up a Borderware firewall, with no 
real understanding of either security or tcp/ip (no more than any other 
machine where you have to configure a network stack). Same holds true for 
many of the commercial Firewalls available today.

This is not an NT-thing!!! Personally, I believe that people who want to 
buy an NT-based Firewall are simply trying to provide a consistent inter  
face to their client environment. Probably the single most important reason 
I can think of is integration with an existing user database, thereby 
avoiding having to have multiple databases to administer. The old "single 
sign-on" thing. Truth be told, getting an NT-based Firewall does not 
translate to "single sign-on", there are far better methods (like ACE) to 
achieve that goal. However, if you're environment doesn't include Unix 
boxes or large servers (a.k.a. mainframes), an NT-based Firewall may make 
administration considerably easier.

	"I have no problem with firewalls that are so easy to administer,etc, BUT, 
generally, the people who setup these easy-to-use firewalls, dont 
know/think about things like disabling guest account (I know, lame 
example), or setting permissions on shares (or disabling all shares, or 
whatever), etc, and if the firewall software dosnt do this for them, then 
their firewall host can be easilly compromised...."

I don't know of any NT-based Firewall product available today that does not 
do the things you are talking about during its installation, and I've 
looked at more than most. The statement would imply that you have seen an 
NT-based Firewall that doesn't do this, and if so, which one, I want to 
know? What you are implying is that the designers of *some* NT Firewall 
products do not know about these basic security steps. I have not seen an 
NT Firewall which can be installed *insecurely*.

Products like WinGate, or Catapult, are not Firewalls, but proxy servers, 
and while their security is no less important than that of a firewall, they 
are both designed to run with other applications on an NT-box (WinGate 
wasn't specifically designed for NT, but will run on NT). As such, neither 
impose a security model on the installer and instead leave it up to the 
installer to decide what to do to secure the box properly. Both can be 
installed *insecurely*, such that the box can be compromised.

	"It takes time and knowledge (well, more like common sense) to make an NT 
box secure(ish).  We all know that a large majority of ppl who insist on NT 
because of its ease of use, and requirement for little-to no knowledge of 
system administration and security, dont have the time and knowledge to 
secure their box."

Again, this generalization applies to all computers, period. I personally 
don't think that there is a large majority of people who are insisting on 
NT because of its ease of use, and requirement for little-to no knowledge 
of system administration and security. If that was true, it wouldn't be so 
difficult to find people who are good at NT. NT's administrative model is 
no less complex than Novell's, or Banyan's, and in some cases it can be far 
more complex (due to the lack of Directory Services). By default, both NT 
and Novell are very wide open after an initial installation, so NT doesn't 
simplify the security either.

I would counter your generalization with one of my own. A large majority of 
people who are administering NT do have the ability to properly secure a 
large majority of the security requirements of an NT environment. Its sad, 
but true, that many companies do not give their administrative IS staff 
enough time to properly configure that security or properly construct a 
viable security policy, irregardless of the OS involved.

	"I hope that I did not offend or mislead anyone here."

Offend, definitely not. Mislead, you continue to do so...;-]

	"if so, I'm sorry, and you are welcome to flame my 
procmail^H^H^H^H^H^H^H^Hme ;-)"

Well, here goes...;-]

Cheers,
Russ



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