cis-docker-v160-1.1.2

DevOps & Security

Ensure only trusted users are allowed to control Docker daemon

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/CIS_benchmarks/Server_Software/Docker/CIS_Docker_Benchmark_v1.6.0/cis-docker-v160-1.1.2/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/cis-docker-v160-1-1-2/. Do not write files or run scripts until I approve.

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

CIS Docker Benchmark v1.6.0 - 1.1.2

Profile Applicability

Level 1 - Docker - Linux

Description

The Docker daemon currently requires root access to the Docker socket which is, by default, owned by the user root and the group docker.

Rationale

Docker allows you to share a directory between the Docker host and a guest container without limiting the access rights of the container. This means that you can start a container and map the / directory on your host to the container. The container would then be able to modify your host file system without any restrictions. This means that you could gain elevated privileges simply by being a member of the docker group and subsequently start a container which maps the root / directory on the host.

Impact

Provided the proceeding instructions are implemented, rights to build and execute containers as normal user would be restricted.

Audit Procedure

Execute the following command on the docker host and ensure that only trusted users are members of the docker group.

getent group docker

Remediation

You should remove any untrusted users from the docker group. Additionally, you should not create a mapping of sensitive directories from the host to container volumes.

Default Value

Not Applicable

References

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	6.1 Establish an Access Granting ProcessEstablish and follow a process, preferably automated, for granting access to enterprise assets upon new hire, rights grant, or role change of a user.	●	●	●
v7	4 Controlled Use of Administrative PrivilegesControlled Use of Administrative Privileges

Assessment Status

Manual

Additional Information

N/A