Title

The Unified Communications Endpoint must be configured to terminate all network connections associated with a communications session at the end of the session. (Cat I 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, and de-allocating networking assignments at the application level if multiple application sessions are using a single, operating system level network connection. This requirement applies to any network element that tracks individual sessions (e.g., stateful inspection firewall, ALG, or VPN).

Check Content

Verify the Unified Communications Endpoint terminates all network connections associated with a communications session at the end of the session. If the Unified Communications Endpoint does not terminate all network connections associated with a communications session at the end of the session, this is a finding.

Fix Text

Configure the Unified Communications Endpoint to terminate all network connections associated with a communications session at the end of the session.

Additional Identifiers

Rule ID: SRG-NET-000213-VVEP-00028_rule

Vulnerability ID: SRG-NET-000213-VVEP-00028

Group Title: SRG-NET-000213-VVEP-00028

Expert Comments

CCIs tied to check.

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