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Introduction
Bug bounty programs are a critical component of modern cybersecurity, allowing ethical hackers to identify vulnerabilities before malicious actors exploit them. However, many high-value programs remain hidden or invite-only, requiring advanced reconnaissance techniques to discover. This article explores elite recon methods used by threat actors and ethical hackers to uncover these opportunities.
Learning Objectives
- Learn how to use OSINT (Open-Source Intelligence) to find hidden bug bounty programs.
- Discover automated tools for efficient reconnaissance.
- Understand how to leverage legal and ethical boundaries in bug hunting.
You Should Know
- Using Google Dorking to Find Bug Bounty Programs
Command:
site:.company.com inurl:/security OR /bugbounty
Step-by-Step Guide:
- Open Google and enter the above query, replacing `company.com` with a target domain.
- Filter results for pages containing “security” or “bugbounty” subdirectories.
- Check for hidden program pages, private submission forms, or security advisories.
Why It Works:
Many organizations host bug bounty pages but don’t publicly advertise them. Google Dorking uncovers these hidden endpoints.
2. Scraping GitHub for Private Program Invites
Command:
github-dork -q "bug bounty invite" -t <GitHub_Token>
Step-by-Step Guide:
1. Install `github-dork` (Python-based tool).
- Run the command with a valid GitHub API token.
- Review repositories or issues containing invite links or program references.
Why It Works:
Developers sometimes leak private program invites or internal docs on GitHub.
3. Hunting Subdomains with Amass
Command:
amass enum -d target.com -brute -active
Step-by-Step Guide:
1. Install Amass (`go install -v github.com/OWASP/Amass/v3/…@master`).
2. Run the command to brute-force subdomains.
- Check discovered subdomains for `/security` or `/responsible-disclosure` paths.
Why It Works:
Many companies host bug bounty portals on subdomains like security.target.com.
4. Monitoring LinkedIn for Insider Leads
Command (Manual Recon):
Search LinkedIn for:
"security engineer" AND "bug bounty"
Step-by-Step Guide:
1. Use LinkedIn’s advanced search filters.
- Engage with security engineers to learn about private programs.
3. Follow company pages for security-related updates.
Why It Works:
Security professionals often hint at undisclosed programs in posts or comments.
5. Automating Recon with Wayback Machine
Command:
waybackurls target.com | grep -i "bounty|security"
Step-by-Step Guide:
1. Install `waybackurls` (`go install github.com/tomnomnom/waybackurls@latest`).
- Pipe results into `grep` to filter for bounty-related terms.
- Check historical snapshots for deprecated but still-active programs.
Why It Works:
Some bug bounty pages are removed but remain accessible via archives.
What Undercode Say
- Key Takeaway 1: Hidden bug bounty programs often exist but require persistent OSINT techniques.
- Key Takeaway 2: Automation (Amass, GitHub scraping) drastically improves recon efficiency.
Analysis:
The rise of private bug bounty programs reflects companies’ desire to control vulnerability disclosures. However, ethical hackers can still access these opportunities through systematic reconnaissance. Future trends may include AI-driven recon tools that automatically detect and classify hidden programs, further leveling the playing field.
By mastering these techniques, security researchers can uncover lucrative opportunities while staying within legal and ethical boundaries.
IT/Security Reporter URL:
Reported By: Abhirup Konwar – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
