ESXI-70-000034 - The ESXi host must disable the Managed Object Browser (MOB).

Information

The MOB provides a way to explore the object model used by the VMkernel to manage the host and enables configurations to be changed. This interface is meant to be used primarily for debugging the vSphere Software Development Kit (SDK), but because there are no access controls it could also be used as a method to obtain information about a host being targeted for unauthorized access.

Solution

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> System >> Advanced System Settings. Click 'Edit'.

Click 'Edit'. Select the 'Config.HostAgent.plugins.solo.enableMob' value and configure it to 'false'.

or

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

Get-VMHost | Get-AdvancedSetting -Name Config.HostAgent.plugins.solo.enableMob | Set-AdvancedSetting -Value false

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_7-0_Y23M07_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7a., CAT|II, CCI|CCI-000381, Rule-ID|SV-256399r919020_rule, STIG-ID|ESXI-70-000034, Vuln-ID|V-256399

Plugin: VMware

Control ID: 429beb4f106b2f5df4969120a586ab6ada9082fbe0f32ac16f43d4805df952de