🔐 Penetration Testing & CTF Writeup Collection

From reconnaissance to root — documented step by step.

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📖 About This Repository

Hello World! I'm franlrs — a cybersecurity enthusiast documenting my hands-on journey through CTF machines and penetration testing labs. Each writeup covers the complete exploitation chain: reconnaissance → enumeration → exploitation → privilege escalation, with detailed explanations of every technique and tool used.

All writeups are also published on my personal site with a better reading experience — check it out at portfolio.franlrs.blog.

⚠️ Disclaimer: All content is for educational purposes only, performed in controlled lab environments. Never apply these techniques on systems you don't own or have explicit permission to test.

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🐳 DockerLabs

🔗 Platform: dockerlabs.es — Free, Docker-based Linux machines.

#	Machine	Difficulty	Key Techniques	Writeup
01	🩸 BigWear		CVE-2025-34077 · Auth Bypass · RCE · PrivEsc
02	💼 BigWork		—
03	🏜️ Duque		—
04	🌳 Tproot		—
05	🎒 Trailpack		—

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📦 Hack The Box

🔗 Platform: hackthebox.com — Industry-standard offensive security labs.

#	Machine	Difficulty	Key Techniques	Writeup
01	📅 Appointment		SQL Injection
02	🐊 Crocodile		FTP Anon · Directory Brute
03	💃 Dancing		SMB Enumeration
04	🦌 Fawn		FTP Anonymous Login
05	🐱 Meow		Telnet · Default Credentials
06	☠️ Redeemer		Redis Enumeration
07	📡 Responder		LLMNR Poisoning · Hash Crack
08	🗃️ Sequel		MariaDB · SQL Enum
09	3️⃣ Three		AWS S3 · Subdomain Enum

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🔴 TryHackMe

🔗 Platform: tryhackme.com — Guided, beginner-friendly security labs.

#	Machine	Difficulty	Key Techniques	Writeup
01	🏘️ Neighbour		IDOR · Access Control

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🛠️ Tools & Methodology

Category	Tools
🔍 Recon	nmap masscan whois dig
🗺️ Enumeration	gobuster ffuf wpscan nikto enum4linux
💣 Exploitation	metasploit burpsuite sqlmap hydra
🐚 Shells	netcat socat revshells.com
📈 PrivEsc	linpeas pspy gtfobins sudo -l
🔑 Cracking	john hashcat rockyou.txt

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📊 Stats

Platform	Machines	Easy	Medium	Hard
🐳 DockerLabs	5	3	2	0
📦 Hack The Box	9	9	0	0
🔴 TryHackMe	1	1	0	0
Total	15	13	2	0

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🔗 Links

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_{📄 MIT License · Star if useful!}