Open the browser and type following SQL query in URL %26%26 1=1 -+įrom the screenshot, you can see we have successfully fixed the query for AND (&) into URL encode as %26%26. Since alphabetic word OR, AND are blacklisted, hence if we use AND 1=1 and OR 1=1 there would be no output therefore I had use %26%26 inside the query.įollowing are a replacement for AND and OR $id= preg_replace(‘/AND/i’,””, $id) //Strip out AND (non case sensitive) $id= preg_replace(‘/or/i’,””, $id) //strip out OR (non case sensitive) ![]() In Lab 25 OR and AND function are Blocked here we will try to bypass sql filter using their substitute. Here again, we’ll be using DHAKKAN SQLI labs for practice. ![]() Today’s article will help you to face such situations and will tell you how to bypass such filters. The reason behind that is the protection that developer had applied to prevent SQL injection, sometimes developer use filters to strip out few characters and OPERATORS from the user input before adding it to the query for SQL statement to prevent SQL Injection. In the previous article you have learned the basic concepts of SQL injection but in some scenarios, you will find that your basic knowledge and tricks will fail.
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