2020 EUROPEAN CYBER SECURITY CHALLENGE

3-7 November 2020

Vienna, Austria

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Event ECSC2019
Tags Web Reverse engineering
Difficulty
Hard
Additional Info
Description

Know Your Brand PLC is about to launch a new live server. The devops team is very confident about their work’s quality, yet you as an ethical hacker have an alternate opinion. You made a bet that you can recover the proof.txt from the root directory. Prove them you are right.

Other artefacts
Tasks

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

Task 2: Which function is the key to progress?

Task 3: What is the hidden directory’s name?

Task 4: What is the name of vulnerability for Webcalendar 1.2.3?