The vCenter Server must not automatically refresh client sessions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-243073	VCTR-67-000002	SV-243073r719462_rule		Medium

Description
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element. Automatic client session refreshes keep unused sessions online, blocking session timeouts.

Description

Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element. Automatic client session refreshes keep unused sessions online, blocking session timeouts.

STIG	Date
VMware vSphere 6.7 vCenter Security Technical Implementation Guide	2021-04-16

Details

Check Text ( C-46348r719460_chk )
Note: For vCenter Server Windows, this is not applicable. On the vCenter Server, execute the following command: # grep "^refresh\.rate" /etc/vmware/vsphere-client/webclient.properties Expected result: refresh.rate = -1 If the output does not match the expected result, this is a finding.

Fix Text (F-46305r719461_fix)
Navigate to and open /etc/vmware/vsphere-ui/webclient.properties. Remove any existing "refresh.rate" line and add the following: refresh.rate = -1 After editing the file, the vSphere Client service must be restarted. # service-control --restart vsphere-client