bWAPP – SQL Injection Blind (Time-based)

In this walk through, we will be going through the SQL Injection Blind (Time-based) vulnerability section from bWAPP Labs. We will be exploring and exploiting Time-based Blind SQL Injection and learn how application are affected because of it. So, let’s get started with the Hacking without any delay.

Security: Low

• Setting the security level to Low.

• The application consist of a search box to search the movie by its title in the database. It issues a GET request to sqli_15.php for the execution however it did not return any response in the front end for both correct and incorrect values.

• I used the below payload to test the Blind SQL injection as the application is not returning anything. After executing this, the application halts for 5 seconds confirming the vulnerability.

asd' OR sleep 5

• Let’s confirm the database name with the below payload. Successful execution halts the application for 5 seconds.

asd' OR (select database()='bWAPP') AND sleep(5)-- -

• Let’s dump the database names automatically using sqlmap.

python3 sqlmap.py -u http://localhost/sqli_15.php --cookie="PHPSESSID=0f4rces35gfqnhdj2cbe1mita6; security_level=0" --data="title=Iron+Man&action=search" -p title --dbs

Also Read: bWAPP – SQL Injection Stored (Blog)

Conclusion:

So, we finally completed all the security levels for the bWAPP SQL Injection Blind (Time-based) Vulnerability. We looked into the various ways how application has been set up in various levels and how we can bypass the security controls implemented. Next, we can mitigate the potential SQL Injection attacks by performing input sanitization and using prepared statements or parametrized queries for every SQL query made by the application to the database. On that note, i will take your leave and will meet you in next one with another bWAPP vulnerability writeup, till then “Keep Hacking”.