uds-server | CAN UDS Simulator and Fuzzer

uds-server is a C library. uds-server has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

Unified Diagnostic Services (UDS) Server - is a ECU simulator that provides UDS support. This application was originally written to go alongside of [ICSim] (for training. Running both ICSim and uds-server can give students a more realistic use of tools. You can use ICSim to understand the basics of reversing CAN and uds-server to dig into the UDS protocol and Engine Control Unit (ECU) inspections such as memory reads and device I/O controls via the ECU instead of spoofed Controller Area Network (CAN bus) packets. In addition, when developing uds-server, it showed several more uses. When a dealership tool is known to uds-server, it makes it very easy to see what the tool is attempting to do by spoofing a real target vehicle. This allows you to quickly reverse commands from dealership tools and see only the packets that matter. Another nice feature, is the ability to fuzz the dealership/scantools to see if they are doing proper input validation checks. This enables uds-server to work as a security tool by playing the role of a modified "malicious" vehicle and seeing how the shop’s tools handle the malformed requests.