The Arista Multilayer Switch must reveal error messages only to authorized individuals (ISSO, ISSM, and SA).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-60859	AMLS-NM-000250	SV-75317r1_rule		Medium

Description
Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state. Additionally, sensitive account information must not be revealed through error messages to unauthorized personnel or their designated representatives.

STIG	Date
Arista MLS DCS-7000 Series NDM Security Technical Implementation Guide	2019-09-30

Details

Check Text ( C-61807r1_chk )
Determine if the network device is configured to reveal error messages only to authorized individuals. This requirement may be verified by demonstration or configuration review. This requirement can be met by a central audit server if the network device is configured to send audit logs to that audit server. If the network device reveals error messages to any unauthorized individuals, this is a finding. This is a function of SNMP Traps. Verify the SNMP configuration is present in the output of the "show running-config" command and that SNMP is active via the "show snmp" command.

Check Text ( C-61807r1_chk )

Determine if the network device is configured to reveal error messages only to authorized individuals. This requirement may be verified by demonstration or configuration review. This requirement can be met by a central audit server if the network device is configured to send audit logs to that audit server.

If the network device reveals error messages to any unauthorized individuals, this is a finding.

This is a function of SNMP Traps. Verify the SNMP configuration is present in the output of the "show running-config" command and that SNMP is active via the "show snmp" command.

Fix Text (F-66571r1_fix)
Configure the network device or its associated audit server to reveal error messages only to authorized individuals. SNMP is used to fulfill this function. An example SNMP configuration is provided below. To configure SNMP according to site-specific policies and procedures, refer to the Arista Configuration Guide Chapter 37 snmp-server engineID local snmp-server view snmpview system included snmp-server group ROgroup v3 priv read snmpview snmp-server group RWgroup v3 priv write snmpview snmp-server user disa ROgroup v3 snmp-server user disaRW RWgroup v3 snmp-server host 10.1.1.1 version 3 priv disaRW snmp-server host 10.2.2.2 version 3 noauth disaRW snmp-server host 10.3.3.3 version 3 noauth disaRW snmp-server host 127.0.0.1 version 3 noauth auth snmp-server host 172.22.29.82 version 3 noauth disaRW snmp-server enable traps

Fix Text (F-66571r1_fix)

Configure the network device or its associated audit server to reveal error messages only to authorized individuals.

SNMP is used to fulfill this function. An example SNMP configuration is provided below. To configure SNMP according to site-specific policies and procedures, refer to the Arista Configuration Guide Chapter 37

snmp-server engineID local
snmp-server view snmpview system included
snmp-server group ROgroup v3 priv read snmpview
snmp-server group RWgroup v3 priv write snmpview
snmp-server user disa ROgroup v3
snmp-server user disaRW RWgroup v3
snmp-server host 10.1.1.1 version 3 priv disaRW
snmp-server host 10.2.2.2 version 3 noauth disaRW
snmp-server host 10.3.3.3 version 3 noauth disaRW
snmp-server host 127.0.0.1 version 3 noauth auth
snmp-server host 172.22.29.82 version 3 noauth disaRW
snmp-server enable traps