Title

The application must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity. (Cat II impact)

Discussion

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.

Check Content

Review documentation and configuration settings to determine if the container platform is configured to close user sessions after defined conditions or trigger events are met. If the container platform is not configured or cannot be configured to disconnect users after defined conditions and trigger events are met, this is a finding.

Fix Text

Configure the container platform to terminate user sessions on defined conditions or trigger events.

Additional Identifiers

Rule ID: SV-233108r940075_rule

Vulnerability ID: V-233108

Group Title: SRG-APP-000190

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.