An elevation of privilege vulnerability exists when Visual Studio fails to properly validate hardlinks while extracting archived files, aka 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 |
|---|---|---|---|
| Visual_studio_2017 | Microsoft | 15.9 (including) | 15.9 (including) |
| Visual_studio_2019 | Microsoft | 16.0 (including) | 16.0 (including) |
| Visual_studio_2019 | Microsoft | 16.3 (including) | 16.3 (including) |
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