https://portswigger.net/web-security/sql-injection/cheat-sheet

Lab: Blind SQL injection with conditional responses

https://portswigger.net/web-security/sql-injection/blind/lab-conditional-responses

In this lab, we are using the responses to enumerate the password of the “administrator” account. First, we need to perform a check on whether the “administrator” account exists and the length of the password. Once this is done, we will perform a substring query to enumerate each of the character of the password.

You can use Burp Repeater or Intruder to enumerate the password. I find both methods to be time-consuming. I wrote a script to enumerate the password instead. The script will look for “Welcome” value in the response. If it is true, the script will note down the character and continue to the next position until all the password character is enumerated.