Recently, I encountered an intriguing Capture The Flag (CTF) challenge during a competition that led me down a rabbit hole of cybersecurity exploration. Let me take you through my journey of discovering and exploiting a vulnerable libssh service, unraveling the mystery step by step. It all began with a simple IP address and port number. Armed with my trusty Kali Linux machine, I decided to probe the service using the netcat utility. Connecting to the IP with the specified port, I soon discovered that it was a libssh service. How did I know? The connection confirmed it, and I was ready to dive deeper into this intriguing puzzle. Unveiling Vulnerabilities: With the service identified, my next task was to pinpoint potential vulnerabilities. A quick search revealed the version details of the libssh service in use. Armed with this information, I navigated to the project’s GitHub page and stumbled upon an exploit script written in Python. It was...
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