Assess Docker Image Security with cnspec

Use cnspec to scan Docker images, containers, and Dockerfiles for security misconfigurations, CVEs, and end-of-life operating systems using the built-in Mondoo security policies or your own custom policies.

Dockerfiles

Scan Dockerfiles to reveal security issues before they reach production.

Scan a single Dockerfile, substituting the path and name of the file for FILEPATH:

cnspec scan docker file FILEPATH

Find nested Dockerfiles within a directory, substituting the directory path for PATH:

cnspec scan docker file PATH

Docker images

Use cnspec to scan Docker images in public or private container registries using their registry name:

cnspec scan docker ubuntu:latest
cnspec scan docker elastic/elasticsearch:7.2.0
cnspec scan docker gcr.io/google-containers/ubuntu:22.04
cnspec scan docker registry.access.redhat.com/ubi8/ubi

If the Docker agent is installed, you can scan images by their id:

cnspec scan docker docker-image-id

Docker containers

Scan a running or stopped Docker container by the container ID:

cnspec scan docker docker-container-id

Manage cnspec providers for containers

Providers are the components of cnspec that allow it to evaluate specific platforms. To learn how to manage cnspec providers most efficiently for containers, read Manage cnspec Providers.

Learn more

• To learn more about how the MQL query language works, read Write Effective MQL.

• Explore Mondoo's Docker resources.