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V-66091

The HP FlexFabric Switch must not use the default VLAN for management traffic.

Finding ID
HFFS-L2-000027
Rule ID
SV-80581r1_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-NET-000512-L2S-000010
CCI
CCI-000366
Target Key
(None)
Documentable
No
Discussion

Switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with directly connected switches using Spanning-Tree Protocol (STP), Dynamic Trunking Protocol (DTP), VLAN Trunking Protocol (VTP), and Port Aggregation Protocol (PAgP)—all untagged traffic. As a consequence, the default VLAN may unwisely span the entire network if not appropriately pruned. If its scope is large enough, the risk of compromise can increase significantly.

Fix Text

Configure the HP FlexFabric Switch for management access to use a VLAN other than the default VLAN. interface Vlan-interface xxxx description MGMT VLAN ip address xxx.xxx.xxx.xxx <mask>

Check Content

Review the HP FlexFabric Switch configuration and verify that the default VLAN is not used to access the switch for management. If the default VLAN is being used to access the HP FlexFabric Switch, this is a finding. <HP>display vlan 1 VLAN ID: 1 VLAN type: Static Route interface: Configured Description: VLAN 0001 Name: VLAN 0001 Tagged ports: None Untagged ports: GigabitEthernet1/0/1 GigabitEthernet1/0/2 GigabitEthernet1/0/3 GigabitEthernet1/0/4 GigabitEthernet1/0/5 GigabitEthernet1/0/6 GigabitEthernet1/0/7 GigabitEthernet1/0/8