2020 EUROPEAN CYBER SECURITY CHALLENGE

3-7 November 2020

Vienna, Austria

CAN YOU SEE IT?

How difficult did you find this challenge?

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Easy Hard
Event ECSC2019
Tags Web
Difficulty
Medium
Additional Info Tools needed for the solution of the challenge • General Linux tools • General web scripting/coding knowledge • Log poisoning • Code injection scripting • Reverse shell • General python knowledge
Description

Know Your Brand PLC currently experienced cybersecurity incidents and managed to roll back to previous backups. Your task is to run an assessment on the webserver accessible from the internet and try to figure out what the attackers’ tools and tactics were by recovering the proof.txt file from the server.

Other artefacts
Tasks

Task 1: What is the hash of proof.txt?

Task 2: Which file is vulnerable for file inclusion?

Task 3: Which process is included in the sudoers file?