$ sudo apt-get update
$ sudo apt-get install libcgi-application-plugin-auth

libcgi-application-plugin-auth is installed in your system.

Make ensure the libcgi-application-plugin-auth package were installed using the commands given below,

$ sudo dpkg-query -l | grep libcgi-application-plugin-auth*

You will get with libcgi-application-plugin-auth package name, version, architecture and description in a table

libcgi-application-plugin-auth package basic information: