With the exception of a select few, all Cisco IPS signatures are open,
and can be cloned, edited, added-to, or edited.  Signatures are stored
in an xml format inside the .pkg file which is applied to a Cisco IPS
sensor.  

Gary




-----Original Message-----
From: Richard Bejtlich [mailto:[EMAIL PROTECTED] 
Sent: Monday, April 10, 2006 1:31 PM
To: Andrew Plato
Cc: [email protected]
Subject: Re: IDS vs. IPS deployment feedback

On 4/10/06, Andrew Plato <[EMAIL PROTECTED]> wrote:
> Yes...SOURCEFIRE customers get those signatures early. They get handed

> out to the Snort world well after the fact. SourceFire is a commercial

> company and you must PAY to get their product.
>
> In other words - Sourcefire is no different than TP, ISS or any other 
> commercial vendor in this regard. As such, we're all just selling what

> we know.

Andrew,

You call five days "well after the fact"?  Snort rules are free for
registered users, by the way.

Here's another difference between ISS and Snort -- I can read Snort
rules, even those developed by Sourcefire.  Can you point me to the
place where I can download and review ISS rules, even assuming I am a
registered owner?  Cisco?  Other?

One of the ways to build trust in a product is to see how it works.  I
trust Snort more than similar products because I can understand its
decision-making process.

Richard

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Is your IDS deployed correctly?
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