designed to teach penetration testing. This specific version is notorious for a critical Command Injection
endpoint improperly handles user input. Instead of just "pinging" an IP address, it passes user-supplied data directly to the server's system shell without adequate sanitization. The Exploit : By using shell metacharacters—such as backticks ( ) or a semicolon ( ultratech api v0.1.3 exploit
Implement "Least Privilege" principles so that even if an API is compromised, the attacker's reach is limited. designed to teach penetration testing
)—an attacker can chain additional commands to the legitimate ping request. For example, a request like ?ip=127.0.0.1; whoami a request like ?ip=127.0.0.1