The Cisco switch must be configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-220501 | SRG-APP-000395-NDM-000310 | CISC-ND-001140 | SV-220501r961506_rule | 2024-09-10 | 3 |
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.
ℹ️ Check
Review the Cisco switch configuration to verify that it is compliant with this requirement as shown in the example below:
snmp-server user NETOPS auth sha 5Er23@#as178 priv aes-128 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
snmp-server host 10.1.48.10 traps version 3 priv NETOPS
Encryption used by the SNMP users can be viewed via the show snmp user command as shown in the example below:
SW1# show snmp user
______________________________________________________________
SNMP USERS
______________________________________________________________
User Auth Priv(enforce) Groups acl_filter
____ ____ ___________ ______ __________
NETOPS sha aes-128 network-operator
If the Cisco switch is not configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm, this is a finding.
✔️ Fix
Configure the Cisco switch to encrypt SNMP messages using a FIPS 140-2 approved algorithm as shown in the example below:
SW1(config)# snmp-server user NETOPS auth sha xxxxxxxxxxxxx priv aes-128 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
SW1(config)# snmp-server host 10.1.48.10 traps version 3 priv NETOPS