Buffer overflow in ddicgi.exe in Mobius DocumentDirect for the Internet 1.2 allows remote attackers to execute arbitrary commands via a long User-Agent parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5212
https://euvd.enisa.europa.eu/vulnerability/EUVD-2000-0815
http://www.securityfocus.com/bid/1657
http://www.atstake.com/research/advisories/2000/a090800-1.txt