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Default credentials are a common vulnerability that can lead to significant security breaches. In bug bounty hunting, checking for default credentials like `admin:admin` on subdomains or HTTP authentication pages can yield valuable findings. As demonstrated in Shivang Maurya’s experience, persistence pays off—even after duplicates, a valid bug was discovered.
You Should Know:
1. Subdomain Enumeration:
Use tools like Sublist3r, Amass, or `subfinder` to discover subdomains:
subfinder -d example.com -o subdomains.txt
2. HTTP Authentication Testing:
Check for default credentials using `curl` or `httpx`:
curl -u admin:admin http://target.com/admin
3. Automated Testing with Hydra:
Bruteforce authentication pages:
hydra -l admin -P passwords.txt target.com http-get /admin
4. Common Default Credentials:
– `admin:admin`
– `root:password`
– `guest:guest`
5. Check for Misconfigurations:
Use `nikto` or `nmap` to scan for open admin panels:
nmap -p 80 --script http-auth-finder target.com
6. Post-Exploitation:
If access is gained, check for sensitive files:
find / -name ".conf" -type f
What Undercode Say:
Default credentials remain a low-hanging fruit in cybersecurity. Always verify subdomains, automate testing, and document findings for bug bounty reports. Persistence, as shown by Shivang, is key—even duplicates can lead to breakthroughs.
Expected Output:
A detailed bug report including:
- Vulnerable endpoint
- Credentials used
- Impact assessment
- Remediation steps (e.g., enforcing strong passwords)
Relevant URLs:
References:
Reported By: Shivangmauryaa Today – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
