🛡️ Cybersecurity Lab Reports & CTF Write-ups

Welcome to my collection of Vulnerability Assessment and Penetration Testing (VAPT) reports and CTF walkthroughs. This repository documents my journey in ethical hacking, penetration testing, and cybersecurity challenges.

Each report includes:

• Reconnaissance steps (how I scanned and identified services)
• Exploitation process (how I gained access)
• Proof of Concept (PoC)
• Privilege escalation techniques
• Mitigation recommendations
• Lessons learned & skills practiced

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📂 Repository Structure

📁 CTFlearn

• Easy/
  • Noxtal.md
• Hard/
  • Code_Injection_Exploitation.md
  • InjectionTime.md
• Medium/
  • HTTP_Header_Manipulation.md
  • HTTP_Request_Manipulation.md

📁 Natas

• Easy/
  • Level_0.md
  • Level_1.md
  • Level_10.md
  • Level_11.md
  • Level_12.md
  • Level_13.md
  • Level_14.md
  • Level_2.md
  • Level_3.md
  • Level_4.md
  • Level_5.md
  • Level_6.md
  • Level_7.md
  • Level_8.md
  • Level_9.md
• Medium/
  • Level15.md

📁 PicoCTF

• Easy/
  • 01_WebDecode.md
  • 02_Inspect_HTML.md
  • 03_Where_Are_The_Robots.md
  • 04_SSTI_1.md
  • 05_Image_Metadata_CTF.md
  • 06_Tab_Tab_Attack.md
  • 07_Secrets.md
  • 08_SearchSource.md
  • 09_RobotsSans.md
  • 10_PowerCookie.md
  • 11_ForbiddenPaths.md
  • 12_Caas.md
  • 13_picoBrowser.md
• Hard/
  • Notepad.md
• Medium/
  • 01_SqliLite.md
  • 02_Sql_direct.md
  • 03_Most_Cookies.md
  • 04_Login.md
  • 05_Client_side_again.md
  • 06_Some_Assembly_Required_1.md

📁 TryHackMe

• Easy/
  • Agent_Sudo.md
  • Archangel.md
  • Basic_Pentesting.md
  • Bounty_Hacker.md
  • Break_It.md
  • Brick_Heist.md
  • CyberHeroes.md
  • cyborg.md
  • Dav.md
  • FlipIt.md
  • Gaming_Server.md
  • Ignite.md
  • Lazy_Admin.md
  • Lian_Yu.md
  • Library.md
  • Light.md
  • Overlay_fs.md
  • Root_Me.md
  • Simple_CTF.md
  • tomcat_ghost.md
  • VulnNet_Internal.md
• Medium/
  • Linux_Agency/
    • Part_1.md
  • Classic_passwd.md
  • Develpy.md
  • Golden_Eye.md
  • HA_Joker.md
  • Rabbit_Hole.md
  • RSA_breaker.md
  • UltraTech.md
  • Year_Of_The_Rabbit.md

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✅ Completed Write-ups

Challenge	Platform	Difficulty	Link
Vulnerability Assessment and Penetration Testing (VAPT) Report – Noxtal	CTFlearn	Easy	Open
Vulnerability Assessment and Penetration Testing (VAPT) Report – HTTP Header Manipulation	CTFlearn	Medium	Open
Vulnerability Assessment and Penetration Testing (VAPT) Report – HTTP Request Manipulation	CTFlearn	Medium	Open
CTFlearn Web Exploitation Labs – Detailed Walkthrough	CTFlearn	Hard	Open
Vulnerability Assessment and Penetration Testing (VAPT) Report – Code Injection Exploitation	CTFlearn	Hard	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿 Natas Challenge - Level 1	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 13	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 14	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 0	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 10	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 11	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 12	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 2	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 3	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 4	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 5	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 6	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 7	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 8	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge - Level 9	Natas	Easy	Open
🏴󠁡󠁦󠁷󠁡󠁲󠁿Natas Challenge – Level 15	Natas	Medium	Open
🛡️ PicoCTF Lab Walkthrough – Forbidden Paths	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Image Metadata CTF	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Inspect HTML	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – picoBrowser	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Power Cookie	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Robots Sans	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Search Source	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Secrets	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – SSTI 1	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Tab Tab Attack	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – WebDecode	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Where Are the Robots	PicoCTF	Easy	Open
🛡️PicoCTF Lab Walkthrough – Caas	PicoCTF	Easy	Open
🛡️ PicoCTF Lab Walkthrough – Client-side-again	PicoCTF	Medium	Open
🛡️ PicoCTF Lab Walkthrough – Login	PicoCTF	Medium	Open
🛡️ PicoCTF Lab Walkthrough – Most Cookies	PicoCTF	Medium	Open
🛡️ PicoCTF Lab Walkthrough – Some Assembly Required 1	PicoCTF	Medium	Open
🛡️ PicoCTF Lab Walkthrough – SQL Direct	PicoCTF	Medium	Open
🛡️ PicoCTF Lab Walkthrough – SQLiLite	PicoCTF	Medium	Open
PicoCTF Hard Challenge – Notepad Vulnerability Assessment and Penetration Testing (VAPT) Report	PicoCTF	Hard	Open
Vulnerability Assessment and Penetration Testing (VAPT) Report – OverlayFS Exploit Lab	TryHackMe	Easy	Open
🟩Agent Sudo - Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Archangel – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Basic Pentesting Machine – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Bounty Hunter – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩BreakIt – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Bricks Heist – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩CyberHeroes – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Cyborg - TryHackMe(THM) Walkthrough Report	TryHackMe	Easy	Open
🟩DAV – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Flip It!! – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩GamingServer – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Ignite – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Lazy Admin – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩LianYu - Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Library – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Light – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Root Me - Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Simple CTF – Try Hack Me (THM) Walkthrough Report	TryHackMe	Easy	Open
🟩Tomcat Ghost – TryHackMe(THM) Walkthrough Report	TryHackMe	Easy	Open
🟩VulnNet Internal – TryHackMe(THM) Walkthrough Report	TryHackMe	Easy	Open
Cybersecurity Report: Penetration Testing of Linux Agency CTF Environment	TryHackMe	Medium	Open
Year of the Rabbit – TryHackMe VAPT Walkthrough Report	TryHackMe	Medium	Open
🟩Classic-passwd - Try Hack Me (THM) Walkthrough Report	TryHackMe	Medium	Open
🟩Develpy - Try Hack Me (THM) Walkthrough Report	TryHackMe	Medium	Open
🟩GoldenEye – Try Hack Me (THM) Walkthrough Report	TryHackMe	Medium	Open
🟩HA Joker - Try Hack Me (THM) Walkthrough Report	TryHackMe	Medium	Open
🟩RSA Breaker – Try Hack Me (THM) Walkthrough Report	TryHackMe	Medium	Open
🟩Utech – Try Hack Me (THM) Walkthrough Report	TryHackMe	Medium	Open
🟩Wonderland - Try Hack Me (THM) Walkthrough Report	TryHackMe	Medium	Open

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📊 CTFs Solved by Difficulty

Difficulty	Count
Easy	50
Medium	18
Hard	3
Total	71

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🎯 Skills Covered So Far

Reconnaissance: nmap, gobuster, dirb, enum4linux,nikto
Exploitation: FTP login, SQLi, command injection, SSRF, path traversal
Password Attacks: hydra, john
Post-Exploitation: Privilege escalation, sudo misconfigurations
Tools: nmap, ftp, hydra, ssh, sudo, tar, sqlmap, burpsuite

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📌 About This Repository

I actively solve CTF challenges from:

• TryHackMe
• PicoCTF
• CTFlearn
• PortSwigger Web Security Academy

This repository is both my learning archive and portfolio. Each write-up is prepared with a focus on clarity so beginners can follow along.

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📬 Connect with Me

• GitHub: https://github.com/Nish344
• LinkedIn: https://linkedin.com/in/nishanth-antony-b60110289