less14

less14 is a Linux-based challenge presented by OverTheWire. The objective of the game is to gain access to increasingly difficult levels by exploiting security vulnerabilities. Each level typically requires the user to find a password or flag to proceed to the next. less14, specifically, focuses on demonstrating how to exploit file permissions and the use of the `suid` bit to escalate privileges. The challenge often involves identifying executable files with the `suid` bit set and understanding how they can be manipulated to run commands as a different user, typically the root user. Players are expected to have a basic understanding of the Linux command line, file system navigation, and common Linux commands. The game is designed to be educational, providing hands-on experience with security concepts that are relevant in real-world scenarios. Success in less14 and subsequent levels on OverTheWire is achieved through critical thinking, problem-solving, and a growing understanding of system security. The challenges are structured to gradually introduce more complex vulnerabilities and exploitation techniques.