The Cisco router must automatically remove or disable temporary user accounts after 72 hours.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-96375	CISC-ND-000070	SV-105513r1_rule		Medium

Description
Temporary accounts are established as part of normal account activation procedures when there is a need for short-term accounts without the demand for immediacy in account activation. If temporary accounts remain active when no longer needed, they may be used to gain unauthorized access. The risk is greater for the network device since these accounts have elevated privileges. To mitigate this risk, automated termination of all temporary accounts must be set upon account creation.

Description

Temporary accounts are established as part of normal account activation procedures when there is a need for short-term accounts without the demand for immediacy in account activation. If temporary accounts remain active when no longer needed, they may be used to gain unauthorized access. The risk is greater for the network device since these accounts have elevated privileges. To mitigate this risk, automated termination of all temporary accounts must be set upon account creation.

STIG	Date
Cisco IOS XR Router NDM Security Technical Implementation Guide	2019-07-26

Details

Check Text ( C-95211r1_chk )
The Cisco router is not compliant with this requirement. However, the risk associated with this requirement can be fully mitigated if the router is configured to utilize an authentication server to authenticate and authorize users for administrative access. Review the router configuration to verify that the device is configured to use an authentication server as primary source for authentication as shown in the following example: radius-server host 10.1.3.16 auth-port 1645 acct-port 1646 key xxxxxxxxxx … … … aaa authentication login LOGIN_AUTHENTICATION group radius local line console login authentication LOGIN_AUTHENTICATION ! line default login authentication LOGIN_AUTHENTICATION transport input ssh If the router is not configured to use an authentication server to authenticate and authorize users for administrative access, this is a finding.

Check Text ( C-95211r1_chk )

The Cisco router is not compliant with this requirement. However, the risk associated with this requirement can be fully mitigated if the router is configured to utilize an authentication server to authenticate and authorize users for administrative access.

Review the router configuration to verify that the device is configured to use an authentication server as primary source for authentication as shown in the following example:

radius-server host 10.1.3.16 auth-port 1645 acct-port 1646
key xxxxxxxxxx
…
…
…
aaa authentication login LOGIN_AUTHENTICATION group radius local
line console
login authentication LOGIN_AUTHENTICATION
!
line default
login authentication LOGIN_AUTHENTICATION
transport input ssh

If the router is not configured to use an authentication server to authenticate and authorize users for administrative access, this is a finding.

Fix Text (F-102051r2_fix)
Step 1: Configure the router to use an authentication server as shown in the following example: RP/0/0/CPU0:R3(config)#radius-server host 10.1.3.16 key xxxxxxxx Step 2: Configure the authentication order to use the authentication server as primary source for authentication as shown in the following example: RP/0/0/CPU0:R3(config)#aaa authentication login LOGIN_AUTHENTICATION group radius local Step 3: Configure all network connections associated with a device management to use an authentication server for the purpose of login authentication as shown in the following example: RP/0/0/CPU0:R3(config)#line default RP/0/0/CPU0:R3(config-line)#login authentication LOGIN_AUTHENTICATION RP/0/0/CPU0:R3(config-line)#exit RP/0/0/CPU0:R3(config)#line console RP/0/0/CPU0:R3(config-line)#login authentication LOGIN_AUTHENTICATION

Fix Text (F-102051r2_fix)

Step 1: Configure the router to use an authentication server as shown in the following example:

RP/0/0/CPU0:R3(config)#radius-server host 10.1.3.16 key xxxxxxxx

Step 2: Configure the authentication order to use the authentication server as primary source for authentication as shown in the following example:

RP/0/0/CPU0:R3(config)#aaa authentication login LOGIN_AUTHENTICATION group radius local

Step 3: Configure all network connections associated with a device management to use an authentication server for the purpose of login authentication as shown in the following example:

RP/0/0/CPU0:R3(config)#line default
RP/0/0/CPU0:R3(config-line)#login authentication LOGIN_AUTHENTICATION
RP/0/0/CPU0:R3(config-line)#exit
RP/0/0/CPU0:R3(config)#line console
RP/0/0/CPU0:R3(config-line)#login authentication LOGIN_AUTHENTICATION