IoT CTF Challenge Pack

Welcome to the IoT CTF Challenge Pack! 🕹️

This repository contains beginner-friendly IoT security challenges designed to simulate real-world IoT devices and firmware. Each challenge includes files you can analyze locally — no server required.

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🏆 Challenges

1️⃣ MQTT Challenge

• Scenario: A smart IoT device communicates over MQTT. The broker might be publicly accessible.
• Files: MQTT/mqtt_message.pcapng
• Tools you may use: Wireshark, mosquitto_sub
• Objective: Analyze the capture file and retrieve the hidden flag.
• Flag format: flag{...}
• Difficulty: Easy

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2️⃣ Linux Firmware Challenge

• Scenario: You received a firmware image from a smart IoT device. It contains a Linux root filesystem.
• Files: Firmware_flag/firmware.bin, Firmware_flag/challenge.txt
• Tools you may use: tar, binwalk, strings, hexdump, cat
• Objective: Extract the firmware and locate the hidden flag.
• Flag format: flag{...}
• Difficulty: Medium

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🛠 Recommended Tools

• Wireshark (sudo apt install wireshark)
• Mosquitto clients (mosquitto_sub, mosquitto_pub)
• binwalk (sudo apt install binwalk)
• strings, hexdump, cat (usually pre-installed on Linux)

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📦 How to Play

1. Clone the repository:

git clone https://github.com/<yourusername>/IoT_CTF.git
cd IoT_CTF