Moxa NPort Series Serial Device Servers Detection Scanner

The Moxa NPort Series Serial Device Servers are industrial devices commonly used to connect serial devices to an Ethernet network. These devices are widely utilized in industrial automation, manufacturing, and transportation systems for reliable and efficient data communication. They support multiple serial communication protocols, ensuring integration with various industrial systems. The devices allow legacy equipment to be connected to modern networks and provide centralized management of serial data over Ethernet. Moxa NPort is known for its robust security and performance features, ensuring seamless data transfer. These devices are a crucial part of many operational technology networks where reliable communication is essential.

This scanner detects the presence of Moxa NPort Series Serial Device Servers on a network and identifies key configuration details such as the password status and server name. The scanner helps organizations map and manage connected serial devices efficiently. By determining the password setting status, it provides insights into potential misconfigurations. This detection capability is particularly valuable for ensuring the secure deployment of industrial devices. The scanner operates by sending crafted packets to identify Moxa NPort-specific responses, ensuring accurate detection.

The technical detection process involves sending specific data packets to the Moxa NPort device over its service port (UDP 4800). The scanner analyzes the device's response to ascertain the model type and password configuration. Key parameters like server name and security configuration are extracted. This information helps determine whether the device has a secure or insecure configuration. The detection mechanism relies on the proprietary response structure unique to Moxa NPort devices, enabling precise identification. Additionally, it verifies the status of security features based on pre-defined response codes.

When exploited, insecurely configured devices may allow unauthorized access to critical network resources. This can lead to data interception, manipulation of industrial processes, or denial of service. Attackers could exploit weak configurations to control or disable connected equipment, potentially causing operational disruptions. Sensitive information, such as server names, could also be exposed, assisting attackers in reconnaissance activities. Therefore, ensuring that such devices are configured securely is critical to maintaining industrial network security.

REFERENCES

• https://nmap.org