Sept. 18, 2023, 3:40 a.m. | Amin Nasiri

InfoSec Write-ups - Medium infosecwriteups.com

Manipulating gRPC Web Payloads and Finding Hidden Services

How Did It Start?

It started when I faced a web application using gRPC-Web and I could not manipulate the requests in Burp Suite. I searched a lot and there was no good or complete resource for pentesting gRPC-Web, then the research began and I could make a tool and a Burp Suite Extension for manipulating payloads. I also found a hidden gRPC-Web parameter SQLi vulnerability in a travel agency …

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