The RUCKUS ICX device must terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after five minutes of inactivity except to fulfill documented and validated mission requirements.

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 device terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session.

Check CLI configuration:

SSH@ICX(config)#show cli config

CLI Session Configuration session timeout : 5 min skip-page mode : disabled skip-page config : disabled rconsole-off : disabled alias : There are no entries in the alias list.

If the idle timeout is greater than five minutes or equal to 0 (i.e., no timeout), this is a finding.

Configure CLI timeout to five minutes or less (default is 2 min):

SSH@ICX(config)#cli timeout 5