IIS 5.0 uses relative paths to find system files that will run in-process, which allows local users to gain privileges via a Trojan horse file, aka the "System file listing privilege elevation" vulnerability.

References

• https://nvd.nist.gov/vuln/detail/CVE-2001-0507
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-044
• https://exchange.xforce.ibmcloud.com/vulnerabilities/6985
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A909
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A912
• http://online.securityfocus.com/archive/1/205069
• http://www.ciac.org/ciac/bulletins/l-132.shtml
• http://www.osvdb.org/5607