🛡️ 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	NO FA	Weak 2FA & Sensitive Data Exposure	High	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