fs0ci3ty/adminsys_basic-ctf repository overview

Adminsys Linux CTF ⚔️ Explore the Deep System (EDS)

⁠Description

Hello Hello !

fs0ci3ty/adminsys_basic-ctf is a docker image to setup CTF sysadmin challenges.
It containers two types of challenges. Atop challenges and Linux repository challenge.
key words:

• atop
• repository
• dns
• archive
• package

Ps: The CTF sysadmin PTF will be soon available. You can use docker play (https://labs.play-with-docker.com⁠) to play this challenge.

⁠How to setup and start ?

docker run -dit --name ctf-sysadmin fs0ci3ty/adminsys_basic-ctf
docker exec -it ctf-sysadmin bash

⁠Atop challenges

The main goal of this challenge is to exploit atop log file to extract informations.
Script to be executed to obtain the flag: /data/get_flag_atop

⁠Challenge 1

Find the file atop_20230227 and analyze it.
Which command consumes enough cpu?

⁠Challenge 2

Find the file atop_20230227 and analyze it.
What is the PID of the process that consumes enough CPU?

⁠Challenge 3

Find the file atop_20230227 in order to analyze it.
What is the name of the user who launched this CPU-hungry command?

⁠Challenge 4

Find the file atop_20230227 in order to analyze it.
What is the total SWAP of the server (answer format: X.YG)

⁠Challenge 5

Find the file atop_20230227 in order to analyze it.
What is the server's total memory (answer format: X.YG)

⁠Challenge 6

Find the file atop_20230227 in order to analyze it.
What is the maximum % of ram memory used? ( answer format: x%)

⁠Repository Challenge

⁠Challenge 1

Find the file flag.zip and extract the flag