offensive-waf-bypass

WebKitFormBoundary Content-Disposition: form-data; name="file"; filename="<script>alert(1)</script>"

Payload in filename field (often not heavily weighted)

5. Context Confusion: Mix attack vectors

Combine SQL injection syntax with XSS to confuse classifiers

'><script>alert(1)</script>' UNION SELECT 1--

**Tools:**

- `ml-waf-evasion-toolkit` (2024) - Research tool for testing ML WAF robustness
- `adversarial-payload-generator` - Generates adversarial examples against WAF classifiers

## Recommended Tools

### WAF Fingerprinting Tools

- **WAFW00F** - The ultimate WAF fingerprinting tool with the largest fingerprint database
- **IdentYwaf** - A blind WAF detection tool using unique fingerprinting methods
- **Ja3er/ja4plus** - TLS fingerprint analysis and spoofing helpers

### WAF Testing Tools

- **GoTestWAF** - Tests WAF detection logic and bypasses
- **Lightbulb Framework** - Python-based WAF testing suite
- **WAFBench** - WAF performance testing suite by Microsoft
- **Framework for Testing WAFs (FTW)** - Rigorous testing framework for WAF rules
- **WAF Testing Framework** - Testing tool by Imperva
- **graphql‑cop** – Fuzzer for GraphQL APIs with WAF bypass testing
- **GoReplay/Mitmproxy** – record & replay traffic through different network paths to compare WAF decisions

### WAF Evasion Tools

- **WAFNinja** - Fuzzes and suggests bypasses for WAFs
- **WAFTester** - Tool to obfuscate payloads
- **libinjection-fuzzer** - Fuzzer for finding libinjection bypasses
- **bypass-firewalls-by-DNS-history** - Uses old DNS records to find origin servers
- **abuse-ssl-bypass-waf** - Finds supported SSL/TLS ciphers for WAF evasion
- **SQLMap Tamper Scripts** - Obfuscates SQL payloads to evade WAFs
- **Bypass WAF BurpSuite Plugin** - Adds headers to make requests appear internal
- **enumXFF** - Enumerates IPs in X-Forwarded-Headers to bypass restrictions
- **WAF Bypass Tool** - Open source tool from Nemesida
- **noble‑tls / uTLS / tls-client** – spoof browser‑grade TLS stacks programmatically

## WAF Bypass Chaining

Combine multiple techniques for more effective bypassing:

1. Use residential proxies
2. Implement a fortified headless browser
3. Add human-like behavior simulation
4. Apply CAPTCHA bypass when needed
5. Avoid honeypot traps
6. Mix multiple encoding techniques
7. Exploit request parsing inconsistencies
8. Use ML-generated payloads that evade signature detection
9. Align TLS/JA3 with real browsers and switch to HTTP/3 where inspection is weaker
10. Pivot to origin when feasible; fall back to stealth browser automation with humanization