RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local users to cause a denial of service (RunAs hang) by creating a named pipe session with the authentication server without any request for service. NOTE: the vendor disputes this vulnerability, however the vendor also presents a scenario in which other users could be affected if running on a Terminal Server. Therefore this is a vulnerability.

References

• https://nvd.nist.gov/vuln/detail/CVE-2001-1518
• http://cert.uni-stuttgart.de/archive/bugtraq/2001/11/msg00100.html
• http://online.securityfocus.com/archive/1/236113
• http://www.iss.net/security_center/static/7533.php
• http://www.securityfocus.com/bid/3291