mirror of
https://github.com/docker/docker-bench-security.git
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150 lines
6.3 KiB
Markdown
150 lines
6.3 KiB
Markdown
# Docker Bench for Security
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The Docker Bench for Security is a script that checks for dozens of common best-practices around deploying Docker containers in production. The tests are all automated, and are based on the [CIS Docker Benchmark v1.5.0](https://www.cisecurity.org/benchmark/docker/).
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We are making this available as an open-source utility so the Docker community can have an easy way to self-assess their hosts and Docker containers against this benchmark.
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Release | CIS |
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:---:|:---:|
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1.5.0|1.5.0|
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1.3.6|1.4.0|
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1.3.5|1.2.0|
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1.3.3|1.1.0|
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1.3.0|1.13.0|
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## Running Docker Bench for Security
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### Run from your base host
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You can simply run this script from your base host by running:
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```sh
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git clone https://github.com/docker/docker-bench-security.git
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cd docker-bench-security
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sudo sh docker-bench-security.sh
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```
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> Note: [`jq`](https://jqlang.github.io/jq/) is an optional but recommended dependency.
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### Run with Docker
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#### Building Docker image
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You have two options if you wish to build and run this container yourself:
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1. Use Docker Build:
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```sh
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git clone https://github.com/docker/docker-bench-security.git
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cd docker-bench-security
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docker build --no-cache -t docker-bench-security .
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```
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Followed by an appropriate `docker run` command as stated above.
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2. Use Docker Compose:
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```sh
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git clone https://github.com/docker/docker-bench-security.git
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cd docker-bench-security
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docker-compose run --rm docker-bench-security
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```
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_Please note that the `docker/docker-bench-security` image is out-of-date and and a manual build is required. See [#405](https://github.com/docker/docker-bench-security/issues/405) for more information._
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Note that this container is being run with a *lot* of privilege -- sharing the host's filesystem, pid and network namespaces, due to portions of the benchmark applying to the running host.
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### Using the container
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```sh
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docker run --rm --net host --pid host --userns host --cap-add audit_control \
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-e DOCKER_CONTENT_TRUST=$DOCKER_CONTENT_TRUST \
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-v /etc:/etc:ro \
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-v /usr/bin/containerd:/usr/bin/containerd:ro \
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-v /usr/bin/runc:/usr/bin/runc:ro \
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-v /usr/lib/systemd:/usr/lib/systemd:ro \
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-v /var/lib:/var/lib:ro \
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-v /var/run/docker.sock:/var/run/docker.sock:ro \
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--label docker_bench_security \
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docker-bench-security
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```
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Don't forget to adjust the shared volumes according to your operating system.
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Some examples are:
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1. On Ubuntu the `docker.service` and `docker.secret` files are located in
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`/lib/systemd/system` folder by default.
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```sh
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docker run --rm --net host --pid host --userns host --cap-add audit_control \
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-e DOCKER_CONTENT_TRUST=$DOCKER_CONTENT_TRUST \
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-v /etc:/etc:ro \
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-v /lib/systemd/system:/lib/systemd/system:ro \
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-v /usr/bin/containerd:/usr/bin/containerd:ro \
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-v /usr/bin/runc:/usr/bin/runc:ro \
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-v /usr/lib/systemd:/usr/lib/systemd:ro \
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-v /var/lib:/var/lib:ro \
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-v /var/run/docker.sock:/var/run/docker.sock:ro \
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--label docker_bench_security \
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docker-bench-security
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```
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2. The /etc/hostname file is missing on macOS, so it will need to be created first. Also, `Docker Desktop` on macOS doesn't have `/usr/lib/systemd` or the above Docker
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binaries.
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```sh
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sudo touch /etc/hostname
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docker run --rm --net host --pid host --userns host --cap-add audit_control \
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-e DOCKER_CONTENT_TRUST=$DOCKER_CONTENT_TRUST \
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-v /etc:/etc \
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-v /var/lib:/var/lib:ro \
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-v /var/run/docker.sock:/var/run/docker.sock:ro \
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--label docker_bench_security \
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docker-bench-security
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```
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### Note
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Docker bench requires Docker 1.13.0 or later in order to run.
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Note that when distributions don't contain `auditctl`, the audit tests will check `/etc/audit/audit.rules` to see if a rule is present instead.
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### Docker Bench for Security options
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```sh
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-b optional Do not print colors
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-h optional Print this help message
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-l FILE optional Log output in FILE, inside container if run using docker
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-u USERS optional Comma delimited list of trusted docker user(s)
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-c CHECK optional Comma delimited list of specific check(s) id
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-e CHECK optional Comma delimited list of specific check(s) id to exclude
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-i INCLUDE optional Comma delimited list of patterns within a container or image name to check
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-x EXCLUDE optional Comma delimited list of patterns within a container or image name to exclude from check
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-n LIMIT optional In JSON output, when reporting lists of items (containers, images, etc.), limit the number of reported items to LIMIT. Default 0 (no limit).
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-p PRINT optional Disable the printing of remediation measures. Default: print remediation measures.
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```
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By default the Docker Bench for Security script will run all available CIS tests and produce
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logs in the log folder from current directory, named `docker-bench-security.log.json` and
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`docker-bench-security.log`.
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If the docker container is used then the log files will be created inside the container in location `/usr/local/bin/log/`. If you wish to access them from the host after the container has been run you will need to mount a volume for storing them in.
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The CIS based checks are named `check_<section>_<number>`, e.g. `check_2_6` and community contributed checks are named `check_c_<number>`.
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`sh docker-bench-security.sh -c check_2_2` will only run check `2.2 Ensure the logging level is set to 'info'`.
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`sh docker-bench-security.sh -e check_2_2` will run all available checks except `2.2 Ensure the logging level is set to 'info'`.
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`sh docker-bench-security.sh -e docker_enterprise_configuration` will run all available checks except the docker_enterprise_configuration group
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`sh docker-bench-security.sh -e docker_enterprise_configuration,check_2_2` will run all available checks except the docker_enterprise_configuration group and `2.2 Ensure the logging level is set to 'info'`
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`sh docker-bench-security.sh -c container_images,container_runtime` will run just the container_images and container_runtime checks
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`sh docker-bench-security.sh -c container_images -e check_4_5` will run just the container_images checks except `4.5 Ensure Content trust for Docker is Enabled`
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Note that when submitting checks, provide information why it is a reasonable test to add and please include some kind of official documentation verifying that information.
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