Nagios portaudit plugin for FreeBSD

This is a small Nagios plugin. This plugin relies on portaudit and/or portupgrade packages to be installed on your FreeBSD system. With these packages installed, the plugin will scan your system for either vulnerable packages, or obsolete packages - and display appropriate warnings to Nagios.

Portaudit can also be successfully run remotely from nrpe, and does not require superuser privileges to operate.

Usage: check_portaudit security/updates show/noshow [database age limit (days)]
Example: check_portaudit security show 3

COMMANDS
security - run portaudit and displays vulnerable packages. (Requires "portaudit" installation.)
updates - runs portversion and lists packages which need updating. (Requires "portupgrade" installation.)

You can choose whether to show or not show vulnerable/old packages by name. The message line may be incredibly huge if you have a lot of old/vulnerable packages, so using "noshow" you are guaranteed a single line of text.

DISPLAY
show - shows all packages by name when vulnerable/obsolete packages detected
noshow - do not show package names. Simply display number of packages detected

DATABASE AGE LIMIT
The database age limit option will produce CRITICAL errors by default if either the portaudit database or the ports tree is older than a certain number of days. If this argument is not specified, the default will be 7 days.

WARNINGS will be delivered should old/vulnerable packages be discovered otherwise you will get an OK result.

It is STRONGLY recommended that you update your portaudit database and ports database to maintain accurate information. A cronjob will easily accomplish this as superuser.

Updating portaudit:-

# portaudit -F

Updating portsdb (in addition to syncing the ports tree) :-

# portsdb -Fu