The Cisco router must notify the administrator of changes to access and/or privilege parameters of the administrators account that occurred since the last logon.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-96215	CISC-ND-000200	SV-105353r1_rule		Medium

Description
Providing administrators with information regarding security-related changes to their account allows them to determine if any unauthorized activity has occurred. Changes to the account could be an indication of the account being compromised. Hence, without notification to the administrator, the compromise could go undetected if other controls were not in place to mitigate this risk.

STIG	Date
Cisco IOS XE Router NDM Security Technical Implementation Guide	2019-12-20

Details

Check Text ( C-95047r1_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: aaa new-model ! aaa authentication login LOGIN_AUTHENTICATION group radius local … … … ip http authentication aaa login-authentication LOGIN_AUTHENTICATION ip http secure-server … … … radius-server host x.x.x.x auth-port 1645 acct-port 1646 key xxxxxxx … … … line con 0 exec-timeout 10 0 login authentication LOGIN_AUTHENTICATION line vty 0 4 exec-timeout 10 0 login authentication LOGIN_AUTHENTICATION 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-101891r1_fix)

Step 1: Configure the Cisco router to use an authentication server as shown in the following example: R4(config)#radius host 10.1.48.2 key xxxxxx Step 2: Configure the authentication order to use the authentication server as primary source for authentication as shown in the following example: R4(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. R4(config)#line vty 0 4 R4(config-line)#login authentication LOGIN_AUTHENTICATION R4(config-line)#exit R4(config)#line con 0 R4(config-line)#login authentication LOGIN_AUTHENTICATION R4(config-line)#exit R4(config)#ip http authentication aaa login-authentication LOGIN_AUTHENTICATION