How to reproduce Tomcat 9.0.0.M1 HTTP smuggling vulnerabilities?

I’m trying to reproduce some of the Tomcat 9.x.x vulnerabilities from this list, in particular the HTTP smuggling vulnerabilities. However, so far I haven’t been able to reproduce any of them. Currently I’m running Tomcat 9.0.0.M1 behind a… Continue reading How to reproduce Tomcat 9.0.0.M1 HTTP smuggling vulnerabilities?

HTTP Request Smuggling Exploit – Need Clarification on Behavior of the ‘Host’ Header

I’ve been reading about HTTP Request Smuggling attacks and I’ve come across a situation that I don’t fully understand. I’ve been studying the report by James Kettle where he describes an attack against Netflix’s servers (https://portswigge… Continue reading HTTP Request Smuggling Exploit – Need Clarification on Behavior of the ‘Host’ Header

In te.cl type http request smuggling, how is the packet length in the smuggling request calculated?

i am studying "Exploiting HTTP request smuggling to bypass front-end security controls, TE.CL vulnerability",I found that the length can be set to 20, 30, etc. It seems that within a certain range, I can set the value of Content-… Continue reading In te.cl type http request smuggling, how is the packet length in the smuggling request calculated?

Are there HTTP/2 specific attacks different from request smuggling?

I’m researching information about HTTP/2 from a cybersecurity point of view for an article, and i wanted to include a section about attacks exclusive to HTTP/2 or were this protocol have a key role.
I already got information about request … Continue reading Are there HTTP/2 specific attacks different from request smuggling?