HTTP Request Smuggling — TryHackMe Walkthrough

🔥 Master HTTP Request Smuggling — Complete Web Pentesting Tutorial | TryHackMe Walkthrough Discover how attackers exploit HTTP request smuggling to bypass security controls, poison web caches, and hijack user sessions. This complete tutorial covers CL.TE, [TE.CL](http://TE.CL), and TE.TE techniques with hands-on exploitation demos! In this comprehensive guide to HTTP Request Smuggling, you'll learn: What HTTP request smuggling is and why it's critical for pentesters to understand How discrepancies between frontend and backend servers create smuggling vulnerabilities The three main smuggling techniques: CL.TE, [TE.CL](http://TE.CL), and TE.TE (Transfer-Encoding obfuscation) Real-world exploitation using Burp Suite Intruder against a vulnerable Apache Traffic Server setup How Content-Length and Transfer-Encoding headers are manipulated to smuggle malicious requests Advanced payload crafting and the importance of correct byte calculations Mitigation strategies including uniform header handling, HTTP/2 adoption, and continuous monitoring Practical walkthrough of capturing admin credentials through request smuggling ⏱️ Timestamps 0:00 Introduction 3:44 The modern infrastructure 7:34 Behind the scenes 12:12 Request smuggling CL.TE 15:20 Request Smuggling TE.CL 17:11 Transfer Encoding Obfuscation 20:05 Walkthrough 26:15 Conclusion 27:56 Flag 🔗 Resources & Further Reading TryHackMe HTTP Request Smuggling Room: https://tryhackme.com/room/httpreques... PortSwigger HTTP Request Smuggling Research: https://portswigger.net/web-security/... Full Web App Pentesting Playlist:    • TryHackMe - Web App Pentesting   Don't forget to LIKE this video, SUBSCRIBE for weekly cybersecurity tutorials, and COMMENT with your questions or what advanced web hacking topic you'd like me to cover next! #HTTPRequestSmuggling #WebSecurity #BurpSuite #TryHackMe #EthicalHacking #Pentesting #WebAppSecurity #InfoSec