MS SQL, find list of tables

From: Cedric Foll (cedric.foll@ac-rouen.fr)
Date: Mon Sep 26 2005 - 10:00:48 EDT


Hi,

I'm doing a pen test on a IIS/MS SQL box and find a SQL Injection on it
which permit to execute some SQL command on it.

In fact I have a "select" where I can inject an "UNION something".
I'd like to use that in order to get login/passwd in the database.

I can do:
<somethin.asp?page=contact' UNION SELECT * FROM users WHERE '1'='1>
But the table users doesn't exist and I failed to guess an existing
table name :(.

I've tried:
<something.asp?page=contact' UNION SELECT * FROM MSysObjects'>
but I get

----
Microsoft OLE DB Provider for ODBC Drivers error '80040e09'
[Microsoft][ODBC Microsoft Access Driver] Record(s) cannot be read; no
read permission on 'MSysObjects'.
----
Someone has an idea ????
Regards
-- 
Cedric Foll
Ingénieur Sécurité & Réseaux
Division Informatique, Rectorat de Rouen
"More people are killed every year by pigs than by sharks,
which shows you how good we are at evaluating risk."
Bruce Schneier
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