📊 Challenge Overview

Category	Details	Additional Info
🏆 Event	PicoGym	Event Link
🔰 Category	Web	🌐
💎 Points		Out of 500 total
⭐ Difficulty	🟢 Easy	Personal Rating: 0/10
👤 Author	zaratec/Danny	Profile
🎮 Solves	90.820	solve rate
📅 Date	30-01-2025	PicoGym
🦾 Solved By	mH4ck3r0n3	Team:

📝 Challenge Information

Can you find the robots? https://jupiter.challenges.picoctf.org/problem/60915/ (link) or http://jupiter.challenges.picoctf.org:60915

🎯 Challenge Files & Infrastructure

Provided Files

1	Files: None

🔍 Initial Analysis

First Steps

Initially, the website appears as follows:

As indicated by the site itself, the first thing I tried was to access the /robots.txt file:

Here, the route /8028f.html was indicated, and by accessing it, I found the flag.

🎯 Solution Path

Exploitation Steps

Exploitation

The exploitation was simply to visit the /8028f.html page, where the flag was contained inside.

Flag capture

🛠️ Exploitation Process

Approach

The exploit makes a GET request to the page indicated in the robots.txt file and extracts the flag from the response using a regex.

•  Exploit

🚩 Flag Capture

Flag

picoCTF{ca1cu1at1ng_Mach1n3s_8028f}

Proof of Execution

Screenshot of successful exploitation

🔧 Tools Used

Tool	Purpose
Python	Exploit

💡 Key Learnings

Skills Improved

• Binary Exploitation
• Reverse Engineering
• Web Exploitation
• Cryptography
• Forensics
• OSINT
• Miscellaneous

📊 Final Statistics

Created: 30-01-2025 • Last Modified: 30-01-2025 *Author: mH4ck3r0n3 • Team: *