1.46 ESXI-80-000219

Information

The ESXi host must restrict use of the dvFilter network application programming interface (API).

GROUP ID: V-258774
RULE ID: SV-258774r959010

If the organization is not using products that use the dvFilter network API, the host should not be configured to send network information to a virtual machine (VM).

If the API is enabled, an attacker might attempt to connect a virtual machine to it, potentially providing access to the network of other VMs on the host.

If using a product that makes use of this API, verify the host has been configured correctly. If not using such a product, ensure the setting is blank.

Solution

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> System >> Advanced System Settings.

Click "Edit". Select the "Net.DVFilterBindIpAddress" value and remove any incorrect addresses.

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VMHost | Get-AdvancedSetting -Name Net.DVFilterBindIpAddress | Set-AdvancedSetting -Value ""

See Also

https://workbench.cisecurity.org/benchmarks/23619