Step 1: Installation

We will use the the oscap-docker tool from package openscap-containers. First we need to make sure that we need to install related packages:

$ sudo apt-get install atomic docker python-docker-py

After the installation of the related packages, you run the following to install openscap-containers

$ sudo apt-get install openscap-containers

The oscap-docker is a simple tool providing interface to use oscap in Docker environment. It allows you to scan running Docker containers and images almost in the same way as scan of local machine.

Step 2: Scan Docker containers and images

The usage of oscap-docker is quite simple, command has usually this format:

$ oscap-docker <image/container>[-cve] <image/container identifier> <oscap parameters>

[Optional] CVE scan of container

First, you need to bring up the Mininet by the following commend line:

$ sudo ./

Now, we can perform CVE scan of our container by running the command below. It will generate OVAL results file and human-readable HTML report.

$ oscap-docker container-cve our-rhel7-container

[Advanced usage] Scan Docker container using custom security policy

There is an option to use your custom security-policy to scan container. We would use SSG in this example. At first, we have to install it. It install SSG SCAP security content to “/usr/share/xml/scap/ssg/content/”.

$ sudo apt-get install scap-security-guide

Now, we perform scan using custom content.

Scanning of container

$ oscap-docker container our-rhel7-container xccdf eval --profile ospp --report report.html /usr/share/xml/scap/ssg/content/ssg-rhel7-ds.xml 

Scanning of images

You can also scan Docker images in the same way. In the following example, we will scan against a profile of our choice.

$ oscap-docker image xccdf eval --profile ospp --report report.html /usr/share/xml/scap/ssg/content/ssg-rhel7-ds.xml