The SNMP manager is not connected to only the management network.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17856	NET1733	SV-19131r1_rule	ECSC-1	Medium

Description
The SNMP manager provides the interface between the network management personnel and the managed network. On the other hand, the SNMP agent provides the interface between the manager and the device being managed. The manager is the collector of alarm information via SNMP traps as well as statistical and historical management information retrieved by polling the agents within the managed network. This information is vital for real time monitoring and alarm management as well as for strategic planning and performance management. To provide security through separation and isolation, the SNMP manager should only be connected to the management network. This enables the SNMP manager to provide management services to the managed devices using a secured as well as a preferred path.

Description

The SNMP manager provides the interface between the network management personnel and the managed network. On the other hand, the SNMP agent provides the interface between the manager and the device being managed. The manager is the collector of alarm information via SNMP traps as well as statistical and historical management information retrieved by polling the agents within the managed network. This information is vital for real time monitoring and alarm management as well as for strategic planning and performance management. To provide security through separation and isolation, the SNMP manager should only be connected to the management network. This enables the SNMP manager to provide management services to the managed devices using a secured as well as a preferred path.

STIG	Date
Network Devices Security Technical Implementation Guide	2018-02-27

Details

Check Text ( C-19358r1_chk )
Review the network topology to determine what network the network manager is connected to. Verify that it is not dual-homed by physically inspecting the device’s LAN connection.

Fix Text (F-17793r1_fix)
Connect the SNMP manager only to the management network.