VCWN-65-000004 - The vCenter Server for Windows must terminate management sessions after 10 minutes of inactivity.


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.

Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level, or de-allocating networking assignments at the application level if multiple application sessions are using a single, operating system level network connection. This does not mean that the application terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session.

NOTE: Please review the benchmark to ensure target compliance.


Change the timeout value by editing the '' file.

On the system where vCenter is installed locate the '' file.



Edit the file to include the line 'session.timeout = 10' where '10' is the timeout value in minutes. Uncomment the line if necessary.

After editing the file the vSphere Web Client service must be restarted.

Supportive Information

The following resource is also helpful.

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