Exploring OverTheWire: Level 8 to Level 9 - Bandit Challenge

📆 · ⏳ 2 min read · ·

Introduction

As we progress further in the Bandit Challenge, Level 9 ↗️ presents us with a new puzzle. Our objective is to find a password hidden within a file called “data.txt,” where the password is the only line of text that occurs only once.

Challenge Overview

💡

Level 9 challenges us to search for a password within the “data.txt” file, where the password is the only line of text that occurs only once. We need to identify the unique line and extract the password from it.

By using commands like grep, sort, and uniq we’ll search for the unique line, manipulate the output, and successfully obtain the password.

Approach and Strategy

Follow these steps to successfully solve Level 9:

Terminal window
ssh [email protected] -p 2220

Enter the password you obtained from the previous level.

To search for the password line that occurs only once in the “data.txt” file, use the following command:

Terminal window
sort data.txt | uniq -u

The sort command sorts the lines in the file, and the uniq -u command prints only the unique lines, filtering out any duplicated lines.

The output of the command will display the unique line that contains the password. Make a note of this password for next level.

Notes

  • Use the -u option with uniq to print only the unique lines.
  • Remember to utilize appropriate piping and redirection techniques to process the output of commands.

Conclusion

Congratulations on successfully completing Level 9 of the Bandit Challenge! By searching for the unique line containing the password within the “data.txt” file, we have obtained the necessary password to progress further.

Stay tuned for the next blog post, where we’ll tackle Level 10 and face new challenges in our quest to become proficient cybersecurity practitioners.

You may also like

  • Exploring OverTheWire: Level 20 to Level 21 - Bandit Challenge

    Welcome back to our captivating journey through the Bandit Challenge! In this blog post, we're geared up to conquer Level 21, where a setuid binary introduces a novel challenge involving network connections. Join me as we delve into the mechanics of connecting to localhost, reading text, and successfully obtaining the password to proceed. Let's dive in!

  • Exploring OverTheWire: Level 19 to Level 20 - Bandit Challenge

    Welcome back to our thrilling journey through the Bandit Challenge! In this blog post, we're poised to conquer Level 20, where we encounter a setuid binary that holds the key to our progress. Join me as we explore the concept of setuid binaries, learn how to execute them, and successfully uncover the password to continue our journey. Let's dive in!

  • Exploring OverTheWire: Level 18 to Level 19 - Bandit Challenge

    Welcome back to our riveting journey through the Bandit Challenge! In this blog post, we're set to conquer Level 19, where a password is concealed within a file. However, a clever twist awaits us—someone has tampered with the system to log us out during SSH login. Join me as we navigate through this challenge using commands like ssh, ls, and cat, all while devising strategies to overcome the unexpected hurdle. Let's dive in!