ISM.DLL in IIS 4.0 and 5.0 allows remote attackers to read file contents by requesting the file and appending a large number of encoded spaces (%20) and terminated with a .htr extension, aka the .HTR File Fragment Reading or File Fragment Reading via .HTR vulnerability.
| 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) |