Cheatsheet Summary
Bypassing Cloudflare WAF during security assessments involves handling headers, TLS fingerprinting, IP reputation, and JS challenges; however, the most effective approach is IP whitelisting, with tools like mitmproxy and custom TLS setups covering most remaining cases.
Cloudflare's advanced bot detection system employs multiple fingerprinting layers. Simply altering the User-Agent header is inadequate; failing any layer can lead to blocking.
| Layer | Evaluation Criteria | Burp Suite Default Behavior |
|---|---|---|
| TLS Fingerprint (JA3) | Cipher suites, TLS extensions, elliptic curves | Identified as a proxy tool |
| HTTP/2 Fingerprint | Stream priority, SETTINGS frames, header ordering | Sends non-browser HTTP/2 frames or downgrades |
heroxo9868Claude is effective at automated discovery and structured testing, but has notable blind spots; its ability to recognize what it missed adds value.
heroxo9868Learn how to use sslscan to identify weak encryption configurations, deprecated SSL/TLS protocols, and potential security issues during web security assessments.
heroxo9868A collection of bug bounty and security testing resources covering common web vulnerabilities, exploitation techniques, reconnaissance methods, and security tools. It includes guides, real-world write-ups, checklists, and tools for testing issues like XSS, SQL injection, SSRF, file uploads, authentication bypasses, cloud misconfigurations, and subdomain enumeration.
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