🛡️ Cybersecurity Research & Vulnerability Analysis Portfolio

📌 Executive Summary

Welcome to my Cybersecurity Portfolio. This repository serves as a centralized documentation hub for my Capture The Flag (CTF) write-ups, vulnerability research, and security architecture case studies.

Unlike traditional exploit-focused write-ups, my approach bridges the gap between technical execution and business risk. Every analysis documented here is structured around a Consultative Methodology: identifying the vulnerability, demonstrating the exploit, assessing the business impact, pointing out the root causes and providing actionable remediation strategies.

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🎯 Core Competencies Demonstrated

• Vulnerability Assessment: Methodical reconnaissance and enumeration of target systems.
• Risk Translation: Converting complex technical flaws (e.g., SQLi, Broken Access Control) into clear business risks.
• Technical Writing: Crafting comprehensive, structured, and easy-to-understand security reports.
• Strategic Remediation: Proposing both code-level fixes and architecture-level defenses.

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📂 Repository Architecture

This repository is categorically structured to reflect different domains of Information Security:

📦 Security-Research-Portfolio
 ┣ 📂 Web-Application-Security    # Web vulnerabilities (OWASP Top 10)
 ┣ 📂 Network-Forensics           # Traffic analysis (PCAP), network pivoting (processing)
 ┣ 📂 Cryptography                # Encryption flaws, hashing, and blockchain concepts (processing)
 ┣ 📂 Reverse-Engineering-Pwn     # Binary exploitation and memory corruption (processing)
 ┗ 📜 README.md

🔍 Featured Research & Write-ups

(A quick look at my most comprehensive analyses - Click to read full reports)

Domain	Challenge	Vulnerability Focus	Business Risk Level	Link
Web Exploitation	byp4ss3d	Arbitrary File Upload	High	Read Report
Web Exploitation	Trickster	Insecure File Upload	High	Read Report
Web Exploitation	NO FA	Weak 2FA & Sensitive Data Exposure	High	Read Report
Web Exploitation	Java Code Analysis !?!	Weak JWT & IDOR	Critical	Read Report
Web Exploitation	Secret Box	Error-Based SQL Injection	Critical	Read Report

(Note: The table above will be updated as new research is published.)

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🛡️ Methodology: The "Advisory" Approach

Every write-up in this repository strictly adheres to the following structure to ensure professional quality and practical value:

1. Executive Summary: A high-level overview of the flaw and its potential impact on business operations.
2. Reconnaissance: The process of gathering intelligence and mapping the attack surface.
3. Attack Vector (Exploitation): Step-by-step technical demonstration of the vulnerability (Proof of Concept).
4. Root Cause Analysis: List all possible reasons can result to the vulnerabilites.
5. Remediation & Best Practices: Strategic recommendations for mitigation, focusing on both immediate patches and long-term architectural improvements.

⚠️ Disclaimer

Strictly for Educational Purposes: All information, techniques, and tools documented in this repository are intended solely for educational purposes, authorized security research, and academic learning. I do not promote, encourage, or support any illegal activities or unauthorized access to computer systems.

📫 Let's Connect

I am always open to discussing Cybersecurity, Risk Advisory, and system architecture.

• LinkedIn

• Email: alexngo4work@gmail.com

👨‍💻 Author

Ngo Giang
Aspiring Cybersecurity & Network Engineer