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V-66091

CAT II (Medium)

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

Rule ID

SV-80581r1_rule

STIG

HP FlexFabric Switch L2S Security Technical Implementation Guide

Version

V1R3

CCIs

CCI-000366

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.

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

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>