full-disclosure - Re: AppScan and IDS evasion

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Date: Sat, 24 May 2008 22:47:04 -0400
From: "Elazar Broad" <elazar@...hmail.com>
To: full-disclosure@...ts.grok.org.uk, roman@...labs.com
Subject: Re: AppScan and IDS evasion

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The out of the box ruleset for SmartDefense on the FW1 does some
basic string checking on web traffic(i.e. checking get and post
variables for sql injection and xss etc.) along with some strict
RFC checks, I don't know to what extent though...

Elazar

On Sat, 24 May 2008 10:46:43 -0400 Roman Medina-Heigl Hernandez
<roman@...labs.com> wrote:
>Pen Testing escribió:
>
>> I've launched AppScan against a web application and I'm being
>> blocked/banned (since I have a dynamic IP I can reboot my router
>and
>> get another IP, which is shortly banned again, as long as the
>attack
>> persists). Since AppScan doesn't have any kind of IDS evasion
>(AFAIK),
>> what could I do?
>
>Are you using the default template/policy? Perhaps you could edit
>it and/or
>create a new (and more relaxed) one by disabling potentially
>detectable
>checks... No idea about which checks you should eliminate...
>
>> PS: I don't know which kind of IDS is in use (perhaps it's not a
>> full-IDS but some anomaly detection as the one included in
>Checkpoint
>> FW-1 but I don't have that information).
>
>Any of you have more info about the kind of checks FW1 use?
>
>--
>
>Saludos,
>-Roman
>
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