SB2018090103 - Deserialization of Untrusted Data in Docker

Description

This security bulletin contains information about 1 vulnerability.

1) Deserialization of Untrusted Data (CVE-ID: CVE-2018-15514)

The vulnerability allows a remote authenticated user to execute arbitrary code.

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.

Remediation

Install update from vendor's website.

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