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Preface: Silo is a medium box on HackTheBox.eu. With an basic nmap scan we will find a bunch of open ports. But the most interesting one is the port 1521. There is a "Oracle TNS listener" running o...

Preface: Optimum is a easy box on HackTheBox.eu. With an basic nmap scan we will find only one open http port. On this port is running a service which we are going to exploit. After some informatio...