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The Cisco router must be configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-96465 | CISC-ND-001140 | SV-105603r1_rule | Medium |
| Description |
|---|
| Without the strong encryption that is provided by the SNMP Version 3 User-based Security Model (USM), an unauthorized user can gain access to network management information that can be used to create a network outage. |
| STIG | Date |
|---|---|
| Cisco IOS XR Router NDM Security Technical Implementation Guide | 2019-07-26 |
Details
| Check Text ( C-95301r1_chk ) |
|---|
| Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. snmp-server host x.x.x.x traps version 3 auth V3USER snmp-server user V3USER V3GROUP v3 auth sha encrypted 110B1607150B snmp-server view V3READ iso included snmp-server view V3WRITE iso included snmp-server group V3GROUP v3 auth read V3READ write V3WRITE If the Cisco router is not configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm, this is a finding. |
| Fix Text (F-102141r1_fix) |
|---|
| Configure the Cisco router to encrypt SNMP messages using a FIPS 140-2 approved algorithm as shown in the example below. RP/0/0/CPU0:R3(config)#snmp-server group V3GROUP v3 auth read V3READ write V3WRITE RP/0/0/CPU0:R3(config)#snmp-server user V3USER V3GROUP v3 auth sha xxxxxx priv aes 256 xxxxxx RP/0/0/CPU0:R3(config)#snmp-server view V3READ iso included RP/0/0/CPU0:R3(config)#snmp-server view V3WRITE iso included RP/0/0/CPU0:R3(config)#snmp-server host x.x.x.x version 3 auth V3USER |