The network element must timeout management connections for administrative access after 10 minutes or less of inactivity.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-3014	NET1639	SV-15453r2_rule		Medium

Description
Setting the timeout of the session to 10 minutes or less increases the level of protection afforded critical network components.

STIG	Date
Perimeter Router Security Technical Implementation Guide Cisco	2017-06-27

Details

Check Text ( C-12918r4_chk )
Review the management connection for administrative access and verify the network element is configured to time-out the connection after 10 minutes or less of inactivity. The default for the VTY line is 10 minutes and may not appear in the display of the configuration. The VTY line should contain the following command: exec-timeout 10

Fix Text (F-3039r5_fix)
Configure the network devices to ensure the timeout for unattended administrative access connections is no longer than 10 minutes.