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-XE_Router_Y26M01_STIG.zip
Item Details
Audit Name: DISA Cisco IOS XE Router RTR STIG v3r5
Category: ACCESS CONTROL
References: 800-53|AC-4, CAT|III, CCI|CCI-001414, Rule-ID|SV-216646r1117237_rule, STIG-ID|CISC-RT-000060, STIG-Legacy|SV-106003, STIG-Legacy|V-96865, Vuln-ID|V-216646
Plugin: Cisco
Control ID: 3e4d548c4a03ccbefe646d03d895a884064110d7554f4dfe95415c7f28257c4e