Using SNMP to gather more information
We can use hosts that we identified through nmap as having open SNMP ports or services running, to try and gather more information.
The Simple Network Management Protocol (SNMP) is a protocol used to provide status and configuration for various devices including servers, workstations, network appliances, IoT devices, and other hosts. This protocol provides both a read-only and read-write functionality. Quite often, devices have been deployed with read-only available by default. Network administrators will often enable read-write access for management purposes. The default passwords for SNMP on many devices is public for a read-only access and private for a read-write access. There are three types of SNMPs. While version 1 has been mostly deprecated, version 2 is still quite common, and version 3 is gaining in use due to it's better security and authentication system. We will focus on version 2 for this testing
Getting ready
Let's ensure the following prerequisites...