CVE-1999-0910
Microsoft Site Server and Commercial Internet System (MCIS) do not set an expiration for a cookie, which could then be cached by a proxy and inadvertently used by a different user.
Date published : 2000-02-04
http://www.securityfocus.com/bid/625
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-035