Detections
Analytics

1.19 CISC-ND-000720

Warning! Audit Deprecated

This audit has been deprecated and will be removed in a future update.

View Next Audit Version

Information

The Cisco switch must be configured to terminate all network connections associated with device management after five minutes of inactivity.

GROUP ID: V-220493
RULE ID: SV-220493r961068

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.

Solution

Set the idle timeout value to five minutes or less on all configured login classes as shown in the example below:

SW1(config)# line console
SW1(config-console)# exec-timeout 5
SW1(config-console)# exit
SW1(config)# line vty
SW1(config-line)# exec-timeout 5

See Also

https://workbench.cisecurity.org/benchmarks/23773

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-10, CAT|I, CCI|CCI-001133, Rule-ID|SV-220493r961068_rule, STIG-ID|CISC-ND-000720, Vuln-ID|V-220493

Plugin: Cisco

Control ID: 71c88406e602eb1fa13be0906aa9481c129a790770ffeacc903aa2d335678fca