Re: IDS is dead, etc

From: Andrew Plato (aplato_at_anitian.com)
Date: 06/24/03

  • Next message: Niels Provos: "Honeyd 0.6: Happy Summer/Pre-Birthday Release"
    Date: Mon, 23 Jun 2003 16:17:44 -0700
    To: <focus-ids@securityfocus.com>
    
    

    Martin Roesch <roesch@sourcefire.com> wrote...

    >Boiling the Gartner report down, here are my take aways:
    >
    >1) IDSes produce too many false positives (i.e. the quality of the
    >information they produce is low)
    >
    >2) IDSes produce too much data (i.e. the quantity of information they
    >produce is high)
    >
    >3) There is no solution to these problems, therefore IDS is dead and we
    >should all buy in-line IPS, er, "deep content inspection firewalls"!

    >So, is there any way to make the quality of data coming out of the IDS
    >higher while at the same time diminishing the amount of information
    >generated? We've been talking about this exact topic on this list
    since
    >1999 on and off and I think all the IDS vendors have ideas how to
    >achieve this goal by integrating network maps and host/service
    >identification into the IDS's world view. If those ideas should
    >actually make their way to market, would that make the systems more
    >useful? I believe so. (At this point I usually pitch Sourcefire, but
    >I'll spare you all.)

    I think what Gartner's article really demonstrates is that very few
    organizations are implementing and using their IDSs properly. Gartner's
    "data" and interpretation are based on the fact that many organizations
    are not using IDS effectively. As such, they are feeding Gartner with
    complaints, which Gartner is mis-interpreting as a technical problem.

    Technically, IDSs are sound. Its not the software or the hardware, it's
    the wetware. The brains (or lack thereof) that are supposed to be using
    and administering those IDSs.

    As a person who implements a lot of IDSs, I've come to realize that very
    few people really know how to work with IDS (or IPS for that matter).
    They order up a big expensive IDS solution, plug it in, and then
    promptly ignore it. When they get hacked or something goes awry, they
    complain that it doesn't work.

    Thus, I don't think new features like network maps or host/service data
    will resolve the problem entirely. It may remedy some of the symptoms,
    but the disease is that people do not understand IDS and do not use it
    properly.

    For this I blame vendors and the high-volume IT resellers. Both of these
    groups are mis-informing their customers about the REAL costs of IDS.
    They haggle over features and the color of reports, but fail to inform
    their customers that in order for their IDS to be effective, they have
    to actually put a brain behind it. The only answer the IDS vendors can
    provide is expensive 24/7/365 monitoring, which is not financially
    possible for many organizations.

    Moreover, very few organizations develop the procedures and the policies
    necessary to manage the data an IDS produces. Also, many of the users
    lack the security training to use IDS information effectively.

    The result, is a perfectly good technology being misused by uninformed
    people. The vendors don't want to be too honest about this, because
    suddenly a $50,000 IDS becomes a $200,000 project. The high-volume
    resellers don't care about this because their whole game is margin on a
    massive scale. Educating customers is somebody else's problem.

    This is where I would sell the benefits of smaller consulting firms and
    outsourced management and support of and IDS. I would also specifically
    point out some of the on-site managed security services my company does
    - but I too will spare everybody the sales pitch.

    I think if the security community is going to form a response, it must
    consider that there is still a lot of ignorance and misunderstanding out
    there about what IDS is, how it works, and what benefits it provides.
    The Gartner report is merely evidence of how high-up the corporate
    ladder that misinformation had gotten.

    ___________________________________
    Andrew Plato, CISSP
    President / Principal Consultant
    Anitian Enterprise Security
    www.anitian.com
    ___________________________________

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  • Next message: Niels Provos: "Honeyd 0.6: Happy Summer/Pre-Birthday Release"

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