Understanding Privilege Escalation in CentOS

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Understanding Privilege Escalation in CentOS

As a system administrator, most of your work can be done as your specific user. There are many tasks, however, that need to be done as the `root` user to work correctly. In this hands-on lab, you'll be able to practice different methods of privilege escalation.

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Lab Info

Level

Beginner

Last updated

Aug 27, 2025

Duration

15m

Challenge

Add `bob` to `sudoers` File
1. Become root:
  
  sudo -i
  
  Enter the cloud_user password.
2. Open the sudoers file:
  
  visudo
3. Add the following somewhere after the root permissions are defined:
  
  bob ALL=(ALL) NOPASSWD: ALL
Challenge

Allow `adam` to Use the `journalctl` Command as `root`
1. Open the sudoers file:
  
  visudo
2. Add the following somewhere after the root permissions are defined:
  
  adam ALL=(root) NOPASSWD: /bin/journalctl

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