Microsoft Internet Information Services (IIS) 5.0 does not log requests that use the TRACK method, which allows remote attackers to obtain sensitive information without detection.
https://exchange.xforce.ibmcloud.com/vulnerabilities/14077
https://euvd.enisa.europa.eu/vulnerability/EUVD-2003-1556
http://www.securityfocus.com/bid/9313
http://www.aqtronix.com/Advisories/AQ-2003-02.txt
http://archives.neohapsis.com/archives/ntbugtraq/2003-q4/0321.html