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Introduction
Bug bounty hunting is a critical skill in cybersecurity, allowing ethical hackers to identify vulnerabilities before malicious actors exploit them. In this article, we break down essential techniques, commands, and tools used in live bug bounty hunting—demonstrated in Deepak Saini’s Red Bull bug bounty video.
Learning Objectives
- Understand key bug bounty hunting methodologies
- Learn essential Linux and Windows commands for vulnerability scanning
- Master web application penetration testing techniques
- Explore API security testing and cloud hardening
- Apply real-world exploitation and mitigation strategies
1. Reconnaissance with Subdomain Enumeration
Command:
subfinder -d redbull.com -o subdomains.txt
Step-by-Step Guide:
- Install Subfinder:
go install -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest
2. Run the command to discover subdomains.
- Analyze results for hidden endpoints that may contain vulnerabilities.
2. Directory Bruteforcing with FFUF
Command:
ffuf -w /path/to/wordlist.txt -u https://redbull.com/FUZZ -o results.json
Step-by-Step Guide:
1. Install FFUF:
go install github.com/ffuf/ffuf@latest
2. Use a wordlist (e.g., common.txt) to scan for hidden directories.
3. Review `results.json` for exposed admin panels or sensitive files.
3. Vulnerability Scanning with Nuclei
Command:
nuclei -u https://redbull.com -t vulnerabilities/ -severity critical,high
Step-by-Step Guide:
- Install Nuclei:
go install -v github.com/projectdiscovery/nuclei/v2/cmd/nuclei@latest
- Run the scan to detect known vulnerabilities (e.g., SQLi, XSS).
3. Prioritize findings based on severity.
4. Exploiting SQL Injection with SQLmap
Command:
sqlmap -u "https://redbull.com/search?q=1" --dbs
Step-by-Step Guide:
1. Identify a vulnerable parameter (e.g., `?q=1`).
2. Use SQLmap to extract database names (`–dbs`).
- Further exploit with `–dump` to retrieve sensitive data.
- API Security Testing with Postman & Burp Suite
Command (Burp Suite):
Intercept API requests and modify headers to test for:
– Broken Authentication
– IDOR (Insecure Direct Object Reference)
Step-by-Step Guide:
1. Capture API requests via Burp Proxy.
- Manipulate `user_id` or `token` parameters to test access control flaws.
- Use Postman to automate fuzzing with different payloads.
6. Cloud Hardening for AWS S3 Buckets
Command (AWS CLI):
aws s3api put-bucket-acl --bucket redbull-assets --acl private
Step-by-Step Guide:
1. Ensure S3 buckets are not publicly accessible.
2. Enable logging:
aws s3api put-bucket-logging --bucket redbull-logs --logging-configuration file://logging.json
3. Regularly audit permissions with `aws s3api get-bucket-acl`.
- Mitigating XSS with Content Security Policy (CSP)
Code Snippet (HTTP Header):
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline' 'unsafe-eval'
Step-by-Step Guide:
1. Implement CSP headers to restrict inline scripts.
2. Test policy violations using browser console.
3. Use reporting endpoints (`report-uri`) to monitor breaches.
What Undercode Say
- Key Takeaway 1: Live bug bounty hunting requires a mix of automated tools (Nuclei, FFUF) and manual testing (Burp Suite).
- Key Takeaway 2: API and cloud security are often overlooked but critical in modern web apps.
Analysis:
Deepak Saini’s Red Bull bug bounty session highlights the importance of persistence and creativity in vulnerability discovery. While automated tools speed up recon, manual testing uncovers logic flaws that scanners miss. As APIs and cloud services grow, hackers must adapt techniques—making continuous learning essential.
Prediction
With AI-driven attacks rising, bug bounty hunters will increasingly rely on machine learning to detect zero-day vulnerabilities. Platforms like Bugcrowd and HackerOne will integrate AI-assisted triaging, making ethical hacking more efficient—but also more competitive.
Watch Deepak’s Live Bug Bounty Video: https://lnkd.in/gp5DeiC8
IT/Security Reporter URL:
Reported By: Deepak Saini – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
