Response queue poisoning via H2.TE request smuggling - Lab#08 скачать в хорошем качестве

Response queue poisoning via H2.TE request smuggling - Lab#08

In this video, I demonstrate Response Queue Poisoning via H2.TE HTTP Request Smuggling, a modern and advanced desynchronization attack that targets HTTP/2 to HTTP/1.1 downgrade behavior. This lab is vulnerable because the front-end server downgrades HTTP/2 requests even when they contain an ambiguous request length, creating a mismatch in how the front-end and back-end servers interpret requests. By exploiting this inconsistency, we can poison the response queue on the back-end server. Using this technique, I show how to interfere with an admin user’s request flow (who logs in approximately every 15 seconds) and gain unauthorized access to the /admin panel, ultimately deleting the user carlos. 🎯 Key topics covered in this video: ✔️ HTTP/2 vs HTTP/1.1 request handling differences ✔️ H2.TE request smuggling explained ✔️ Response queue poisoning fundamentals ✔️ Exploiting request desynchronization to hijack admin responses ✔️ Practical mitigation insights for real-world systems 🧪 Lab notes: The back-end connection resets every 10 requests If the connection becomes unstable, sending a few normal requests restores a clean state This lab highlights how HTTP/2 support can unintentionally introduce new attack surfaces ⚠️ Educational use only. Perform testing only on systems you own or have permission to test. If you’re preparing for bug bounty hunting, web application security, or mastering advanced HTTP request smuggling, this walkthrough is a must-watch. 🔖 Hashtags: #HTTPRequestSmuggling #HTTP2 #H2TE #ResponseQueuePoisoning #WebSecurity #BugBounty #EthicalHacking #PortSwigger #BurpSuite #CyberSecurity #WebAppSec #OWASP