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Introduction:
Bug bounty hunting is a critical skill in cybersecurity, enabling researchers to identify vulnerabilities before malicious actors exploit them. This guide covers essential commands, tools, and methodologies used by top bug bounty hunters like Deepak Saini, helping you streamline your security research and penetration testing workflows.
Learning Objectives:
- Learn key Linux and Windows commands for vulnerability scanning and exploitation.
- Understand web application penetration testing techniques.
- Master API security testing and cloud hardening practices.
1. Essential Linux Commands for Reconnaissance
Command:
nmap -sV -T4 -p- <target_IP>
What it does:
Performs a fast, aggressive port scan to identify open ports and services.
Step-by-Step Guide:
1. Install Nmap:
sudo apt install nmap
2. Run the scan:
nmap -sV -T4 -p- 192.168.1.1
3. Analyze results for vulnerable services (e.g., outdated Apache versions).
2. Web App Testing with Burp Suite
Command/Tool:
Intercepting requests via Burp Suite Proxy.
What it does:
Captures HTTP requests for manual vulnerability testing (e.g., SQLi, XSS).
Step-by-Step Guide:
1. Configure browser proxy to `127.0.0.1:8080`.
2. Enable interception in Burp Suite.
- Modify requests (e.g., inject `’ OR 1=1–` for SQLi testing).
3. Windows Privilege Escalation
Command:
whoami /priv
What it does:
Lists current user privileges to identify misconfigurations (e.g., SeImpersonatePrivilege).
Step-by-Step Guide:
1. Run in PowerShell:
whoami /priv
2. Exploit weak privileges using tools like JuicyPotato.
4. API Security Testing with Postman
Command/Tool:
Sending malformed JSON payloads:
{"user":"admin", "password":{"$ne": ""}}
What it does:
Tests NoSQL injection vulnerabilities in API endpoints.
Step-by-Step Guide:
- Send a POST request to `/login` with the payload.
2. Check for unauthorized access or database errors.
5. Cloud Hardening (AWS)
Command:
aws iam get-account-password-policy
What it does:
Audits AWS password policies for weak configurations.
Step-by-Step Guide:
1. Install AWS CLI:
sudo apt install awscli
2. Run:
aws iam get-account-password-policy
3. Ensure `MinimumPasswordLength` is set to 12+.
What Undercode Say:
- Key Takeaway 1: Automation (Nmap, Burp) accelerates reconnaissance, but manual testing uncovers logic flaws.
- Key Takeaway 2: Cloud misconfigurations are a leading cause of breaches—always audit IAM policies.
Analysis:
Bug bounty hunting requires a mix of technical expertise and creativity. While tools like Nmap and Burp Suite streamline scanning, advanced vulnerabilities (e.g., business logic flaws) demand deep manual analysis. As APIs and cloud adoption grow, hunters must adapt to new attack surfaces.
Prediction:
With AI-driven penetration testing tools on the rise, bug bounty programs will increasingly automate vulnerability detection. However, human ingenuity will remain irreplaceable for uncovering sophisticated exploits.
Ready to start hunting? Practice these techniques in controlled environments like Hack The Box or Bugcrowd’s VDPs. 🚀
🎯Let’s Practice For Free:
IT/Security Reporter URL:
Reported By: Deepak Saini – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
