full-disclosure - Re: SFX-SQLi: A new SQL injection technique for SQL Server (dumps a table in one request!)

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Message-ID: <E85F04E8B6B65311347CFA7E@Macintosh-2.local>
Date: Sat, 07 Feb 2009 22:10:59 -0600
From: Paul Schmehl <pschmehl_lists@...rr.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: SFX-SQLi: A new SQL injection technique for
 SQL	Server (dumps a table in one request!)

--On February 7, 2009 10:02:21 AM -0600 Daniel Kachakil 
<dani@...hakil.com> wrote:
>
> I have written a paper describing how the technique works and in which
> fundamentals it is based, and I have also developed a tool which
> implements
> this technique as a proof of concept (with the source code included).
>
> You can get them through this URL:
>
> http://www.kachakil.com/papers/SFX-SQLi-en.htm

Having read your paper, I'm a bit confused about what you think the "new 
SQL injection technique" is that you've discovered.  I understand you have 
determined a way to *extract* data in a more compact and efficient format, 
but I didn't see any new *injection* technique.  IOW, the FOR XML 
construct isn't going to assist you in obtaining the data - only in 
obtaining it more efficiently.

Did I miss something?

Paul Schmehl, If it isn't already
obvious, my opinions are my own
and not those of my employer.
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