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From: Jeremiah Grossman (jeremiahwhitehatsec.com)
Date: Tue Jan 15 2002 - 16:48:13 CST

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    Sometimes all a administrator needs is a indication
    on how a "hacker | outsider" would view the system
    and while attempting to penetrate. Black-Box is
    the best choice in this instance. But... this does not
    properly outline a framework for testing....

    I see the distinction... a few results of a black box
    test may indicate the need for a white box test
    afterwards. However, I also would imagine that there
    are potentially thousands of possible black-box
    results that may indicate a need for a white box test.
    Too many in fact to make a framework feasible,
    and I dont think the proper course of action anyhow.

    In my view... a framework of security requirements
    would have to be approached and discussed from a
    non-technical point of view.

    More of...what (type | level) of security does a
    system require...here are the suggested test
    mechanisms... ie ...(black box, white box, glass
    box.... blue box ;) )...

    then within in these mini-framework models... what
    technical building blocks make up a "black box | white box "
    test.

    Taking this approach may gain some ground (if I made
    any sense).

    Jeremiah-

    The Owasp Project wrote:

    > Great reply.
    >
    > "Again though, whatever methods are employed, they
    > always should reflect the needs of the system."
    >
    > This is exactly why the requirements project is so
    > important. How can you test unless you know what you
    > are testing against ?
    >
    > Does anyone have any thoughts on how you link black
    > box and white box testing methodically ? ie if you
    > find you can push very long url paramaters into a
    > field which returns an HTTP 500, would you / should
    > you then go look for overflows ASAP ?
    >
    > It sounds to me that there is a clear line as well
    > that black box testing is a pure hackers eye
    > view ......