Simple Network Management Protocol (SNMP) Access


SNMP provides useful information to the hacker on the characteristics of the target host. In addition, several vendors have poorly protected "private" Management Information Blocks (MIBs) that can control the target.


Determine if your host requires SNMP. On many systems it is installed "out of the box". Unless your enterprise uses SNMP for system management, it may be prudent to simply "turn it off". Check with your vendor on the easiest method for dectivating SNMP.

If SNMP is required, check with your network management group to see if if access can be limited to the enterprise. Routers and firewalls provide this facility.

If SNMP must be available over the Internet, check with the CERT to determine if your configuration may be vulnerable.