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HTTP/2 Request tunneling error

Abinash | Last updated: Aug 25, 2022 06:48PM UTC

I was practicing http/2 equest tunneling lab, I checked HTTP/2 ALPN override option, in Project option -> HTTP block HTTP/2 Option was also checked, but under Inspector tab when I changed from HTTP/1.1 to HTTP/2 and added 1 CRLF character in one header value I got a error called " rst_stream received with error code 0x1 ( protocol based error) after sending the request, how can i solve this issue??

Ben, PortSwigger Agent | Last updated: Aug 26, 2022 10:17AM UTC

Hi Abinash, Can you confirm the exact name of the lab that you are attempting to solve so that we can take a look at this for you?

Abinash | Last updated: Aug 27, 2022 08:37AM UTC

Yes sure, the lab name is - Bypass access control with http request tunnelling? I am suspecting that I'm getting this error because I added HTTP/1 header in HTTP/2 request, am i right? Same issue i faced when doing bug hunting, in that case when i injected the HTTP/1 header in HTTP/2 header name i got same error.

Ben, PortSwigger Agent | Last updated: Aug 31, 2022 08:26AM UTC