full-disclosure - Re: ASHX, ASMX or What?

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Message-ID: <4E04BFA0.30401@bonsai-sec.com>
Date: Fri, 24 Jun 2011 13:47:28 -0300
From: Nahuel Grisolia <nahuel@...sai-sec.com>
To: Christian Sciberras <uuf6429@...il.com>
Cc: full-disclosure@...ts.grok.org.uk, owasp-argentina@...ts.owasp.org
Subject: Re: ASHX, ASMX or What?

Chris,

On 06/24/2011 01:37 PM, Christian Sciberras wrote:
> You shouldn't filter against known files, but do the reverse, you should
> filter against known good files.
> 
> Oh and the medium you decide to throw this data should have special checks
> against execution etc...
> 

Yeap! I know that, "yes to white lists" and "avoid the use of black
lists", and other stuff related to a secure file up-loader, but the
filter I'm trying to bypass is like the one I described.

anyway, thanks for your quick response!

regards,
-- 
Nahuel Grisolia - C|EH
Information Security Consultant
Bonsai Information Security Project Leader
http://www.bonsai-sec.com/
(+54-11) 4777-3107

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