# 502 - Pentesting Modbus

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## 基本信息

1979年，由Modicon开发了**Modbus协议**，作为一种消息结构。其主要用途涉及在主从/客户端-服务器模型下促进智能设备之间的通信。该协议在实现设备之间高效交换数据方面发挥着至关重要的作用。

**默认端口：** 502

```
PORT    STATE SERVICE
502/tcp open  modbus
```

## 枚举

```bash
nmap --script modbus-discover -p 502 <IP>
msf> use auxiliary/scanner/scada/modbusdetect
msf> use auxiliary/scanner/scada/modbus_findunitid
```

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