Detections
Analytics

1.6 CISC-RT-000060

Information

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

GROUP ID:V-221076
RULE ID:SV-221076r999685

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)# int e4/1 - 11
SW1(config-if-range)# shutdown
SW1(config-if-range)# end

See Also

https://workbench.cisecurity.org/benchmarks/26426

Item Details

Category: ACCESS CONTROL, RISK ASSESSMENT, SYSTEM AND COMMUNICATIONS PROTECTION, SYSTEM AND INFORMATION INTEGRITY

References: 800-53|AC-4, 800-53|AC-17, 800-53|AC-17(1), 800-53|RA-5, 800-53|SC-7, 800-53|SI-4, CCI|CCI-001414, CSCv7|12.2, Rule-ID|SV-221076r999685_rule, STIG-ID|CISC-RT-000060, Vuln-ID|V-221076

Plugin: Cisco

Control ID: f771d668c5178939b900e5ff2eee49e67205f8d0ff2508704202f3daf6b1c37a