IIS 4.0 and 5.0 does not properly restrict access to certain types of files when their parent folders have less restrictive permissions, which could allow remote attackers to bypass access restrictions to some files, aka the File Permission Canonicalization vulnerability.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Internet_information_server | Microsoft | 4.0 (including) | 4.0 (including) |
| Internet_information_services | Microsoft | 5.0 (including) | 5.0 (including) |