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Modicon PLC CPU Type Default Credentials (SCADA)



The remote host is configured with default or easily-guessed credentials.


The Modicon Quantum, Premium and Momentum brands of PLCs have a private SNMP MIB that is available on the Internet. The type of Modicon PLC may be obtained via an SNMP Get Request.


Change default community strings to a value not easily guessed and filter access to the SNMP port.