Docker Desktop allows local privilege escalation to NT AUTHORITYSYSTEM because it mishandles the collection of diagnostics with Administrator privileges, leading to arbitrary DACL permissions overwrites and arbitrary file writes. This affects Docker Desktop Enterprise before 2.1.0.9, Docker Desktop for Windows Stable before 2.2.0.4, and Docker Desktop for Windows Edge before 2.2.2.0.
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 |
|---|---|---|---|
| Desktop | Docker | * | 2.1.0.9 (excluding) |
| Desktop | Docker | * | 2.2.0.4 (excluding) |
| Desktop | Docker | * | 2.2.2.0 (excluding) |
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
References
- https://docs.docker.com/release-notes/
- https://github.com/active-labs/Advisories/blob/master/2020/ACTIVE-2020-002.md
- https://github.com/spaceraccoon/CVE-2020-10665
- https://docs.docker.com/release-notes/
- https://github.com/active-labs/Advisories/blob/master/2020/ACTIVE-2020-002.md
- https://github.com/spaceraccoon/CVE-2020-10665