This tweet shares a technique for bypassing Web Application Firewalls (WAFs) or filters to exploit SQL Injection vulnerabilities. It demonstrates the use of the popular tool sqlmap targeting a specified URL. The key approach shown is chaining multiple tamper scripts such as 'between', 'charencode', 'randomcase', 'space2comment', and 'versionedmorekeywords'. Each tamper script modifies the SQL payload in a different manner to evade signature-based detection by WAFs. For instance, 'randomcase' changes letter casing randomly, 'space2comment' replaces spaces with comments, and 'charencode' encodes characters to bypass filters. By combining several tamper scripts, attackers can better evade WAFs and successfully execute SQL Injection attacks. The tip to chain multiple tamper scripts highlights how layered evasion increases chances of bypassing security filters. This approach is useful against WAFs that rely on static pattern matching and signature-based detection methods. It emphasizes the importance of combining different payload transformations to bypass advanced WAF defenses.
For more details, check out the original tweet here: https://twitter.com/_0b1d1/status/1935078230874276174