Ada Image Server (ImgSvr) 0.4 allows remote attackers to view directories or download files via an HTTP request with a trailing %00 (null).
https://exchange.xforce.ibmcloud.com/vulnerabilities/15706
https://euvd.enisa.europa.eu/vulnerability/EUVD-2004-1880
http://www.securityfocus.com/bid/10027
http://www.securityfocus.com/bid/10026
http://www.autistici.org/fdonato/advisory/imgSvr0.4-adv.txt
http://sourceforge.net/project/shownotes.php?release_id=230023