Detections
Analytics

1.3 CISC-RT-000060

Information

The Cisco switch must be configured to have all inactive layer 3 interfaces disabled.

GROUP ID: V-220991
RULE ID: SV-220991r622190

An inactive interface is rarely monitored or controlled and may expose a network to an undetected attack on that interface. Unauthorized personnel with access to the communication facility could gain access to a switch by connecting to a configured interface that is not in use.

If an interface is no longer used, the configuration must be deleted and the interface disabled. For sub-interfaces, delete sub-interfaces that are on inactive interfaces and delete sub-interfaces that are themselves inactive. If the sub-interface is no longer necessary for authorized communications, it must be deleted.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Disable all inactive interfaces as shown below:

SW1(config)#interface GigabitEthernet3
SW1(config-if)#shutdown
SW1(config)#interface GigabitEthernet4
SW1(config-if)#shutdown

See Also

https://workbench.cisecurity.org/benchmarks/26260

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-4, CAT|III, CCI|CCI-001414, Rule-ID|SV-220991r622190_rule, STIG-ID|CISC-RT-000060, Vuln-ID|V-220991

Plugin: Cisco

Control ID: daf7ff8a36eac1fbd368682e0f20047f17f4f1797353e274d0f5388ee00ba0ab