Detections
Analytics

VCSA-80-000267 - The vCenter Server must disable the distributed virtual switch health check.

Information

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.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

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})))}

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_8-0_Y25M07_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-258934r961863_rule, STIG-ID|VCSA-80-000267, Vuln-ID|V-258934

Plugin: VMware

Control ID: ecacd49324d14f6829886b53fad0a11e2b305f7ce49eddff0a2f9dc7aeb8a823