Buffer overflow in ISAPI extension (idq.dll) in Index Server 2.0 and Indexing Service 2000 in IIS 6.0 beta and earlier allows remote attackers to execute arbitrary commands via a long argument to Internet Data Administration (.ida) and Internet Data Query (.idq) files such as default.ida, as commonly exploited by Code Red.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A197
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-033
http://www.securityfocus.com/bid/2880
http://www.securityfocus.com/archive/1/191873