Detections
Analytics
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_Y20M07_STIG.zip
Item Details
Audit Name: DISA STIG Cisco IOS Router RTR v1r4
Category: ACCESS CONTROL
References: 800-53|AC-4, CAT|III, CCI|CCI-001414, Rule-ID|SV-105651r1_rule, STIG-ID|CISC-RT-000060, Vuln-ID|V-96513
Plugin: Cisco
Control ID: 9341ad78e61bee64ccab282579f42a1b3804371ff6d091016231f1a439a2e04a