The vCenter Server must disable the distributed virtual switch health check.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-258934 | VCSA-80-000267 | SV-258934r934460_rule | CCI-000366 | medium |
| Description | ||||
| Network health check is disabled by default. Once enabled, the health check packets contain information on host#, vds#, and port#, which an attacker would find useful. It is recommended that network health check be used for troubleshooting and turned off when troubleshooting is finished. | ||||
| STIG | Date | |||
| VMware vSphere 8.0 vCenter Security Technical Implementation Guide | 2023-10-11 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-6
1.00
- DISA · V1R1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.4.1
1.00
- DISA · V1R1 · 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
3.4.2
1.00
- DISA · V1R1 · 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-000366
1.00
- DISA · V1R1 · disa_xccdf · related
Details
Check Text (C-258934r934460_chk)
If distributed switches are not used, this is not applicable.
From the vSphere Client, go to "Networking".
Select a distributed switch >> Configure >> Settings >> Health Check.
View the health check pane and verify the "VLAN and MTU" and "Teaming and failover" checks are "Disabled".
or
From a PowerCLI command prompt while connected to the vCenter server, run the following commands:
$vds = Get-VDSwitch
$vds.ExtensionData.Config.HealthCheckConfig
If the health check feature is enabled on distributed switches and is not on temporarily for troubleshooting purposes, this is a finding.
Fix Text (F-62583r934459_fix)
From the vSphere Client, go to "Networking".
Select a distributed switch >> Configure >> Settings >> Health Check.
Click "Edit".
Disable the "VLAN and MTU" and "Teaming and failover" checks.
Click "OK".
or
From a PowerCLI command prompt while connected to the vCenter server, run the following command:
Get-View -ViewType DistributedVirtualSwitch | ?{($_.config.HealthCheckConfig | ?{$_.enable -notmatch "False"})}| %{$_.UpdateDVSHealthCheckConfig(@((New-Object Vmware.Vim.VMwareDVSVlanMtuHealthCheckConfig -property @{enable=0}),(New-Object Vmware.Vim.VMwareDVSTeamingHealthCheckConfig -property @{enable=0})))}