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When submitting bug bounty reports, a common debate arises: should different attack paths leading to the same fix be considered duplicates? This discussion is crucial for ethical hackers and security teams aiming for efficient vulnerability management.
You Should Know:
1. Understanding Duplicate Classification
Bug bounty platforms (e.g., HackerOne, Bugcrowd) often mark reports as duplicates if they lead to the same root cause, even if the attack methods differ. However, some argue that unique attack vectors deserve separate recognition.
2. Testing for Duplicate Validity
To challenge a duplicate classification, replicate the attack after the supposed fix:
Example: Testing OAuth Bypass curl -X GET "https://target.com/auth?bypass=payload" -H "Authorization: Bearer invalid_token"
If the vulnerability persists, provide proof in a follow-up report.
3. Linux Command for HTTP Exploit Testing
Use `curl` and `httpx` to verify different attack paths:
Check for open redirects curl -I "https://target.com/redirect?url=evil.com" Test for IDOR (Insecure Direct Object Reference) httpx -l targets.txt -path "/api/user?id=123" -status-code -match-string "200"
4. Windows Command for Network Exploits
Check for misconfigured endpoints using PowerShell:
Invoke-WebRequest -Uri "https://target.com/admin" -Method GET -StatusCodeVariable 'status'
if ($status -eq 200) { Write-Host "Vulnerable!" }
5. Automating Bug Replay with Python
Use Python to verify if a patch truly fixes all attack vectors:
import requests
payloads = ["' OR 1=1--", "<script>alert(1)</script>", "../etc/passwd"]
for payload in payloads:
r = requests.get(f"https://target.com/search?q={payload}")
if "error" not in r.text:
print(f"Still vulnerable: {payload}")
6. Recon for Alternative Attack Paths
Use `ffuf` for directory brute-forcing:
ffuf -w wordlist.txt -u https://target.com/FUZZ -mc 200,403
What Undercode Say
The debate over duplicates hinges on whether the fix comprehensively addresses all attack vectors. Ethical hackers should:
– Document every unique path (even if marked as duplicate).
– Re-test after patches to confirm full mitigation.
– Escalate responsibly if a fix is incomplete.
Prediction
Bug bounty programs will likely refine duplicate policies, possibly introducing “Partial Duplicates” for related but distinct attack methods.
Expected Output:
A well-structured report proving whether multiple attack paths remain exploitable post-fix, supported by technical evidence.
Relevant URLs:
References:
Reported By: Activity 7331584062077263872 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
