Operating System Security

CHALLENGE INFORMATION

Platform: TryHackMe
Path: Introduction to Cyber Security
Module: Introduction To Offensive Security
Room: Operating System Security
Description: This room introduces users to operating system security and demonstrates SSH authentication on Linux.

Introduction to Operating System Security

Question 1: Which of the following is not an operating system?

Thunderbird

Common Examples of OS Security

Question 1: Which of the following is a strong password, in your opinion?

iloveyou ; 1q2w3e4r5t ; LearnM00r ; qwertyuiop

LearnM00r

Practical Example of OS Security

Question 1: Based on the top 7 passwords, let’s try to find Johnny’s password. What is the password for the user johnny?

abc123

Question 2: Once you are logged in as Johnny, use the command ‘history’ to check the commands that Johnny has typed. We expect Johnny to have mistakenly typed the root password instead of a command. What is the root password?

happyHack!NG

Question 3: While logged in as Johnny, use the command ‘su - root’ to switch to the root account. Display the contents of the file flag.txt in the root directory. What is the content of the file?

<redacted-flag>