{{#include ../banners/hacktricks-training.md}}

<figure><img src="/images/pentest-tools.svg" alt=""><figcaption></figcaption></figure>

**Get a hacker's perspective on your web apps, network, and cloud**

**Find and report critical, exploitable vulnerabilities with real business impact.** Use our 20+ custom tools to map the attack surface, find security issues that let you escalate privileges, and use automated exploits to collect essential evidence, turning your hard work into persuasive reports.

{% embed url="https://pentest-tools.com/?utm_term=jul2024&utm_medium=link&utm_source=hacktricks&utm_campaign=spons" %}

# Basic Information

In 1979, the **Modbus Protocol** was developed by Modicon, serving as a messaging structure. Its primary use involves facilitating communication between intelligent devices, operating under a master-slave/client-server model. This protocol plays a crucial role in enabling devices to exchange data efficiently.

**Default port:** 502

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

# Enumeration

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

{{#include ../banners/hacktricks-training.md}}