CISC-RT-000060 - The Cisco router must be configured to have all inactive interfaces disabled.

Information

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 router 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.

R4(config)#interface GigabitEthernet3
R4(config-if)#shutdown
R4(config)#interface GigabitEthernet4
R4(config-if)#shutdown

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Cisco_IOS_Router_Y22M07_STIG.zip

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-4, CAT|III, CCI|CCI-001414, Rule-ID|SV-216556r531085_rule, STIG-ID|CISC-RT-000060, STIG-Legacy|SV-105651, STIG-Legacy|V-96513, Vuln-ID|V-216556

Plugin: Cisco

Control ID: 81f1241d6f00f37d4d6e52fcfac4b200469c70c747f1d3072a7664790186ee86