Details

When the direct console user interface (DCUI) is enabled and logged in, it should be automatically logged out if left logged in to avoid access by unauthorized persons. The ‘DcuiTimeOut’ setting defines a window of time after which the DCUI will be logged out.

Satisfies: SRG-OS-000163-VMM-000700, SRG-OS-000279-VMM-001010

Solution

From the vSphere Client, select the ESXi host and go to Configure >> System >> Advanced System Settings.

Click ‘Edit’, select the ‘UserVars.DcuiTimeOut’ value, and configure it to ‘120’.

or

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

Get-VMHost | Get-AdvancedSetting -Name UserVars.DcuiTimeOut | Set-AdvancedSetting -Value 120

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_6-7_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Access Control, System and Communications Protection.This control applies to the following type of system VMware.

References

• 800-53|AC-12
• 800-53|SC-10
• CAT|II
• CCI|CCI-001133
• CCI|CCI-002361
• Rule-ID|SV-239298r674823_rule
• STIG-ID|ESXI-67-000043
• STIG-Legacy|SV-104119
• STIG-Legacy|V-94033
• Vuln-ID|V-239298

Source

• Tenable.com/audits