The vCenter Server must terminate vSphere Client sessions after 10 minutes of inactivity.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-256334	SRG-APP-000190	VCSA-70-000089	SV-256334r885613_rule	2023-12-21	1

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 resources committed by the managed network element. Satisfies: SRG-APP-000190, SRG-APP-000295, SRG-APP-000389

ℹ️ Check
From the vSphere Client, go to Administration >> Deployment >> Client Configuration. View the value of the "Session timeout" setting. If "Session timeout" is not set to "10 minute(s)" or below, this is a finding. Note: If vCenter is not 7.0 U2 or newer, this setting is not available through the UI and must be checked with the "session.timeout" setting in the "/etc/vmware/vsphere-ui/webclient.properties file".

ℹ️ Check

From the vSphere Client, go to Administration >> Deployment >> Client Configuration. View the value of the "Session timeout" setting. If "Session timeout" is not set to "10 minute(s)" or below, this is a finding. Note: If vCenter is not 7.0 U2 or newer, this setting is not available through the UI and must be checked with the "session.timeout" setting in the "/etc/vmware/vsphere-ui/webclient.properties file".

✔️ Fix
From the vSphere Client, go to Administration >> Deployment >> Client Configuration. Click "Edit" and enter "10" minutes into the "Session timeout" setting. Click "Save". Note: If vCenter is not 7.0 U2 or newer, this setting is not available through the UI and must be checked with the "session.timeout" setting in the "/etc/vmware/vsphere-ui/webclient.properties file".