MODBUS/TCP 'Restart Communications' Function Code Detection

Info Nessus Network Monitor Plugin ID 7100

Synopsis

The MODBUS/TCP client has sent a MODBUS server a Restart Communications request.

Description

The MODBUS/TCP client has sent a MODBUS server a Restart Communications request. The Restart Communications request, function code 8 (0x08) and subfunction code 1 (0x01), will cause the target server to reinitialize and restart its communication port. This function is typically implemented only in serial devices.

Solution

N/A

Plugin Details

Severity: Info

ID: 7100

Version: 1.0

Family: SCADA

Published: 2014/02/26

Modified: 2018/09/16

Risk Information

Risk Factor: Info