.NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability
Weakness
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| .net_framework | Microsoft | 4.6.2 (including) | 4.6.2 (including) |
| .net_framework | Microsoft | 4.7 (including) | 4.7 (including) |
| .net_framework | Microsoft | 4.7.1 (including) | 4.7.1 (including) |
| .net_framework | Microsoft | 4.7.2 (including) | 4.7.2 (including) |
| Dotnet6 | Ubuntu | upstream | * |
| Dotnet7 | Ubuntu | jammy | * |
| Dotnet7 | Ubuntu | mantic | * |
| Dotnet8 | Ubuntu | upstream | * |
Potential Mitigations
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/132.html
- https://cwe.mitre.org/data/definitions/17.html
- https://cwe.mitre.org/data/definitions/35.html
- https://cwe.mitre.org/data/definitions/76.html