Introducing ExecEvasion: Understanding Execution Evasion Beyond Simple Filters

Turning “Access Denied” into “Challenge Accepted” — responsibly. Hi Everyone! If you’ve ever played a CTF, performed a penetration test, or assessed a Web Application Firewall (WAF), you’ve likely hit this wall: You discover a command injection. You craft a clean payload. And then BLOCKED . The filter catches cat. Or /etc/passwd. Or sometimes just the string whoami. You know the vulnerability is real. You know the command would execute. Yet something in the middle refuses to cooperate. That “som