STIGQter: STIG Summary: Cisco IOS XR Router NDM Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

The Cisco router must be configured with only one local account to be used as the account of last resort in the event the authentication server is unavailable.

DISA Rule

SV-216530r663917_rule

Vulnerability Number

V-216530

Group Title

SRG-APP-000148-NDM-000346

Rule Version

CISC-ND-000490

Severity

CAT II

CCI(s)

• CCI-001358 - The organization establishes privileged user accounts in accordance with a role-based access scheme that organizes allowed information system access and privileges into roles.
• CCI-002111 - The organization identifies and selects the organization-defined information system account types of information system accounts which support organizational missions/business functions.

Weight

10

Fix Recommendation

Step 1: Configure a local account with the necessary privilege level to troubleshoot network outage and restore operations as shown in the following example:

RP/0/0/CPU0:R3(config)#username xxxxxxxxx group netadmin
RP/0/0/CPU0:R3(config)#username xxxxxxxxx secret xxxxxx

Step 2: Configure the authentication order to use the local account if the authentication server is not reachable as shown in the following example:

RP/0/0/CPU0:R3(config)#aaa authentication login default group tacacs+ local

Check Contents

Step 1: Review the Cisco router configuration to verify that a local account for last resort has been configured.

username xxxxxxxxxxxx
group netadmin
secret 5 xxxxxxxxxxxxxxxxxxxx

Note: The following groups should not be assigned to this local account: root-system and root-lr. A custom group that provides appropriate tasks can be used.

Step 2: Verify that local is defined after radius or tacas+ in the authentication order as shown in the example below.

aaa authentication login default group tacacs+ local

If the Cisco router is not configured with only one local account to be used as the account of last resort in the event the authentication server is unavailable, this is a finding.

Vulnerability Number

V-216530

Documentable

False

Rule Version

CISC-ND-000490

Severity Override Guidance

Step 1: Review the Cisco router configuration to verify that a local account for last resort has been configured.

username xxxxxxxxxxxx
group netadmin
secret 5 xxxxxxxxxxxxxxxxxxxx

Note: The following groups should not be assigned to this local account: root-system and root-lr. A custom group that provides appropriate tasks can be used.

Step 2: Verify that local is defined after radius or tacas+ in the authentication order as shown in the example below.

aaa authentication login default group tacacs+ local

If the Cisco router is not configured with only one local account to be used as the account of last resort in the event the authentication server is unavailable, this is a finding.

Check Content Reference

M

Target Key

4023

Comments