source: https://www.securityfocus.com/bid/1587/info
A remote user is capable of gaining read access to any known file residing on a host running Netwin Netauth through directory traversal. Appending a series of '../' and the desired file name to the 'page' variable at the end of a request to netauth.cgi will allow a remote user to walk the entire directory tree above the Netauth directory.
For example:
http://target/cgi-bin/netauth.cgi?cmd=show&page=../../directory
will display the contents of the specified directory.