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The ESXi host client must be configured with an idle session timeout.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-258731 | ESXI-80-000010 | SV-258731r958402_rule | Medium |
| Description |
|---|
| The ESXi host client is the UI served up by the host itself, outside of vCenter. It is accessed at https://<ESX FQDN>/ui. ESXi is not usually administered via this interface for long periods, and all users will be highly privileged. Implementing a mandatory session idle limit will ensure that orphaned, forgotten, or ignored sessions will be closed promptly. |
| STIG | Date |
|---|---|
| VMware vSphere 8.0 ESXi Security Technical Implementation Guide | 2024-07-11 |
Details
| Check Text ( C-62471r933252_chk ) |
|---|
| From the vSphere Client, go to Hosts and Clusters. Select the ESXi Host >> Configure >> System >> Advanced System Settings. Select the "UserVars.HostClientSessionTimeout" value and verify it is set to "900" or less. or From a PowerCLI command prompt while connected to the ESXi host, run the following command: Get-VMHost | Get-AdvancedSetting -Name UserVars.HostClientSessionTimeout If the "UserVars.HostClientSessionTimeout" setting is not set to "900" or less, this is a finding. |
| Fix Text (F-62380r933253_fix) |
|---|
| From the vSphere Client, go to Hosts and Clusters. Select the ESXi Host >> Configure >> System >> Advanced System Settings. Click "Edit". Select the "UserVars.HostClientSessionTimeout" value and configure it to "900". or From a PowerCLI command prompt while connected to the ESXi host, run the following command: Get-VMHost | Get-AdvancedSetting -Name UserVars.HostClientSessionTimeout | Set-AdvancedSetting -Value "900" |