The Cisco switch must be configured to have all inactive layer 3 interfaces disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-221076 | CISC-RT-000060 | SV-221076r999685_rule | CCI-001414 | low |
| Description | ||||
| 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. | ||||
| STIG | Date | |||
| Cisco NX OS Switch RTR Security Technical Implementation Guide | 2024-12-20 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AC-4
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.1.3
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-001414
1.00
- DISA · 3 · disa_xccdf · related
Details
Check Text (C-221076r999685_chk)
Review the switch configuration and verify that inactive interfaces have been disabled as shown below:
interface Ethernet4/12
shutdown
no switchport
interface Ethernet4/13
shutdown
no switchport
…
…
…
interface Ethernet4/48
shutdown
no switchport
If an interface is not being used but is configured or enabled, this is a finding.
Fix Text (F-22780r409718_fix)
Disable all inactive interfaces as shown below:
SW1(config)# int e4/1 - 11
SW1(config-if-range)# shutdown
SW1(config-if-range)# end