KeyFocus (KF) web server 1.0.2 allows remote attackers to list directories and read restricted files via an HTTP request containing a %00 (null) character.
http://www.keyfocus.net/kfws/support/
http://www.iss.net/security_center/static/9500.php
http://online.securityfocus.com/archive/1/281102
http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0007.html