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gRPC proxy from Postman

Shreyas | Last updated: Jan 19, 2023 01:57AM UTC

Hi, I have a gRPC service that is hosted both locally and remote server. I was able to get the API calls to postman. However, when I try to proxy postman via burp, I'm getting following errors, localhost instance(http): Error on Postman: Received RST_STREAM with code 2 triggered by internal client error: Protocol error Error on Burp: No response received from remote server localhost instance(https): Error on Postman: Received RST_STREAM with code 0 Error on Burp: Unsupported or unrecognized SSL message Remote server(Postman mock server for gRPC)(http): Error on Postman: read ECONNRESET Error on Burp: Invalid client request received: Failed to parse target host and port from CONNECT request Remote server(Postman mock server for gRPC)(https): Error on Postman: No connection established Error on Burp: Invalid client request received: Failed to parse target host and port from CONNECT request Can you please assist in resolving the proxy issue for gRPC service Thank you

Hannah, PortSwigger Agent | Last updated: Jan 19, 2023 09:49AM UTC

Hi Unfortunately, we don't have support for gRPC. We have an ongoing feature request for this functionality, to which I have added your +1.

Shreyas | Last updated: Jan 19, 2023 03:54PM UTC

Any ETA for the gRPC support?

Hannah, PortSwigger Agent | Last updated: Jan 19, 2023 05:12PM UTC

This is not currently on our roadmap, and we do not have an ETA. We monitor feature requests for the level of interest, so this may be added to a future roadmap. However, we can't state this definitively.

Shreyas | Last updated: Jan 19, 2023 07:09PM UTC

Thank you for the update. Please keep me posted

| Last updated: Apr 13, 2023 12:26PM UTC

same issue i am having when i send grpc requests through burp i get he internal error Received RST_STREAM with code 0 Please can anyone help with this

Ben, PortSwigger Agent | Last updated: Apr 13, 2023 12:53PM UTC