This script is Copyright (C) 2006-2017 Tenable Network Security, Inc.
It is possible to obtain the scan status of a Modicon PLC using an
SNMP Get Request.
The Modicon Quantum, Premium and Momentum brands of PLC's have a
private SNMP MIB that is available on the Internet. The scan status
has been obtained via an SNMP Get Request. The scan status is either
idle, operational or stopped.
An attacker may use this information to determine the status of a PLC.
Change default community strings to a value not easily guessed and
filter access to the SNMP port.
Risk factor :
Medium / CVSS Base Score : 5.0
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