The HP FlexFabric Switch must have all disabled switch ports assigned an unused VLAN.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-66085	HFFS-L2-000024	SV-80575r1_rule		Medium

Description
It is possible that a disabled port that is assigned to a user or management VLAN becomes enabled by accident or by an attacker and as a result gains access to that VLAN as a member.

STIG	Date
HP FlexFabric Switch L2S Security Technical Implementation Guide	2020-06-03

Details

Check Text ( C-66729r1_chk )
Review the HP FlexFabric Switch configurations and examine all access switch ports. Each access switch port not in use should have membership to an inactive VLAN that is not used for any purpose and is not allowed on any trunk links. If there are any access switch ports not in use and not in an inactive VLAN, this is a finding. display vlan X VLAN ID: X VLAN type: Static Route interface: Configured: Description: VLAN 000X Name: VLAN 000X Tagged ports: None Untagged ports: GigabitEthernet1/0/1 GigabitEthernet1/0/2 GigabitEthernet1/0/3 GigabitEthernet1/0/4

Check Text ( C-66729r1_chk )

Review the HP FlexFabric Switch configurations and examine all access switch ports. Each access switch port not in use should have membership to an inactive VLAN that is not used for any purpose and is not allowed on any trunk links.

If there are any access switch ports not in use and not in an inactive VLAN, this is a finding.

display vlan X
VLAN ID: X
VLAN type: Static
Route interface: Configured:
Description: VLAN 000X
Name: VLAN 000X
Tagged ports: None
Untagged ports:
GigabitEthernet1/0/1 GigabitEthernet1/0/2
GigabitEthernet1/0/3 GigabitEthernet1/0/4

Fix Text (F-72161r1_fix)
Assign all switch ports not in use to an inactive VLAN. [HP-vlanX]port GigabitEthernet 1/0/1 to GigabitEthernet 1/0/48