Title

The SNMP service must use only SNMPv3 or its successors. (Cat II impact)

Discussion

SNMP Versions 1 and 2 are not considered secure. Without the strong authentication and privacy provided by the SNMP Version 3 User-based Security Model (USM), an attacker or other unauthorized users may gain access to detailed system management information and use the information to launch attacks against the system.

Check Content

Check the SNMP daemon is not configured to use the v1 or v2c security models. Procedure: Examine the default install location /etc/snmp/snmpd.conf or: # find / -name snmpd.conf # grep -E '(v1|v2c|community|com2sec)' <snmp.conf file> | grep -v '^#' If any configuration is found, this is a finding.

Fix Text

Edit /etc/snmp/snmpd.conf and remove references to the "v1", "v2c", "community", or "com2sec". Restart the SNMP service. # service snmpd restart

Additional Identifiers

Rule ID: SV-45944r1_rule

Vulnerability ID: V-22447

Group Title: GEN005305

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.