CVE-2018-15514

HandleRequestAsync in Docker for Windows before 18.06.0-ce-rc3-win68 (edge) and before 18.06.0-ce-win72 (stable) deserialized requests over the .pipedockerBackend named pipe without verifying the validity of the deserialized .NET objects. This would allow a malicious user in the docker-users group (who may not otherwise have administrator access) to escalate to administrator privileges.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• http://www.securityfocus.com/bid/105202
• https://docs.docker.com/docker-for-windows/edge-release-notes/
• https://docs.docker.com/docker-for-windows/release-notes/
• https://srcincite.io/blog/2018/08/31/you-cant-contain-me-analyzing-and-exploiting-an-elevation-of-privilege-in-docker-for-windows.html
• http://www.securityfocus.com/bid/105202
• https://docs.docker.com/docker-for-windows/edge-release-notes/
• https://docs.docker.com/docker-for-windows/release-notes/
• https://srcincite.io/blog/2018/08/31/you-cant-contain-me-analyzing-and-exploiting-an-elevation-of-privilege-in-docker-for-windows.html