• 👉 Overview
• 👀 What ?
• 🧐 Why ?
• ⛏️ How ?
• ⏳ When ?
• ⚙️ Technical Explanations
• 🖇️ References

👉 Overview

👀 What ?

The 'Find SUID' command is a Unix-based command used to search for files with the Set User ID (SUID) bit set. SUID files, when executed, run with the permissions of the file owner instead of the user running them. This can pose a security risk if misused or not properly monitored.

🧐 Why ?

Understanding and utilizing the 'Find SUID' command is crucial for both system administrators and penetration testers. For system administrators, it allows for effective monitoring of file permissions, ensuring that no unauthorized or malicious SUID files exist. For penetration testers, it can be used to identify potential vulnerabilities within a system.

⛏️ How ?

The 'Find SUID' command can be used by opening a terminal and typing the command 'find / -perm -4000 -ls 2>/dev/null'. This will search the entire file system for any files with the SUID bit set and list them. It's important to regularly monitor and verify the legitimacy of these files to prevent potential security breaches.

⏳ When ?

The use of the 'Find SUID' command, and the concept of SUID files in general, has been a part of Unix and Unix-like systems since their inception. It continues to be an important tool in modern day cybersecurity practices.

⚙️ Technical Explanations

The 'Find SUID' command works by using the 'find' command, a standard utility on Unix and Unix-like operating systems, to search the file system. The '-perm -4000' option tells 'find' to look for files with the SUID bit set, represented by the 4000. The '-ls' option then tells 'find' to list those files. The '2>/dev/null' part of the command redirects any error messages (represented by '2') to '/dev/null', effectively hiding them. This is often done to prevent unnecessary clutter in the output. While this command is a powerful tool, it's important to note that its effectiveness is dependent on the permissions of the user running it. For example, a regular user may not be able to search certain directories due to lack of permissions.

🖇️ References