STIGQter: STIG Summary: Cisco IOS XR Router NDM Security Technical Implementation Guide Version: 3 Release: 6 Benchmark Date: 01 Apr 2026:

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

DISA Rule

SV-216532r961068_rule

Vulnerability Number

V-216532

Group Title

SRG-APP-000190-NDM-000267

Rule Version

CISC-ND-000720

Severity

CAT I

CCI(s)

• CCI-001133 - Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

Weight

10

Fix Recommendation

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

RP/0/0/CPU0:R3(config)#line con
RP/0/0/CPU0:R3(config-line)#exec-timeout
RP/0/0/CPU0:R3(config)#line default
RP/0/0/CPU0:R3(config-line)#exec-timeout 5 0

Check Contents

Review the Cisco router configuration to verify that all network connections associated with a device management have an idle timeout value set to five minutes or less as shown in the following example:

line console
…
…
…
exec-timeout 5 0
!
line default
…
…
…
exec-timeout 5 0
transport input ssh

If the Cisco router is not configured to terminate all network connections associated with a device management after five minutes of inactivity, this is a finding.

Vulnerability Number

V-216532

Documentable

False

Rule Version

CISC-ND-000720

Severity Override Guidance

Review the Cisco router configuration to verify that all network connections associated with a device management have an idle timeout value set to five minutes or less as shown in the following example:

line console
…
…
…
exec-timeout 5 0
!
line default
…
…
…
exec-timeout 5 0
transport input ssh

If the Cisco router is not configured to terminate all network connections associated with a device management after five minutes of inactivity, this is a finding.

Check Content Reference

M

Target Key

4023