The vCenter Server must terminate vSphere Client sessions after 15 minutes of inactivity.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-258920	VCSA-80-000089	SV-258920r1015932_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 resources committed by the managed network element. Satisfies: SRG-APP-000190, SRG-APP-000295, SRG-APP-000389

STIG	Date
VMware vSphere 8.0 vCenter Security Technical Implementation Guide	2025-06-09

Details

Check Text (C-62660r934416_chk)

From the vSphere Client, go to Administration >> Deployment >> Client Configuration.

View the value of the "Session timeout" setting.

If the "Session timeout" is not set to "15 minute(s)" or less, this is a finding.

Fix Text (F-62569r934417_fix)

From the vSphere Client, go to Administration >> Deployment >> Client Configuration.

Click "Edit" and enter "15" minutes into the "Session timeout" setting. Click "Save".