Intro to Fuzzing IoT Protocols using BooFuzz

In this article let’s learn about how to fuzz IoT protocols such as modbus using boofuzz, a open source fuzzing framework which can fuzz most of IoT protocols using TCP, UDP, SSL or even Serial protocols.

Modbus TCP has following format —

1. Transaction ID (2 Bytes)
2. Protocol ID (2 Bytes) — Protocol ID is always 0000 as per modbus protocol definition
3. Length (2 Bytes) — Value is calculated by amount of bytes from Unit ID to Function Dependent Data
4. Unit …

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