GEN005305 - The SNMP service must use only SNMPv3 or its successors.

Information

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.

Solution

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

See Also

http://iasecontent.disa.mil/stigs/zip/U_RedHat_5_V1R18_STIG.zip