bugtraq - RE: Lateral SQL Injection Revisited

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Message-ID: <A48E3CCDABFB48FE9C530516E37D5B2B@regulus>
Date: Sat, 19 Jul 2008 00:50:01 +0100
From: "David Litchfield" <davidl@...software.com>
To: <a.polyakov@...c.ru>
Cc: <bugtraq@...urityfocus.com>
Subject: RE: Lateral SQL Injection Revisited - No Special Privs Required

Hi Alexandr,

> Not only sysdate function can be used in
> procedure without input parametres.	
> For example using  dbms_random.value in
> procedure without input parameters, we also can
> inject sql code.

> SQL> ALTER SESSION SET NLS_NUMERIC_CHARACTERS = '''.' ;

Thanks for pointing out dbms_random.value - I did cover
NLS_NUMERIC_CHARACTERS in the initial paper but beyond getting the query to
barf I've not yet worked out a decent/standard way of exploitation as we can
only inject 1 character. We can use this for a cursor snarfing attack
though...
Any further thoughts?
Cheers,
David

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