0309-docker-env-priv - Docker environment file permissions are not set to 644 or more restrictive¶

Rule ID¶

• 0309-docker-env-priv

Category¶

• Container

Level¶

• Warn

Compatible Versions¶

• Linux

Description¶

• The Docker daemon uses the Docker environment file to set up the runtime environment for the Docker daemon. If Docker is used on a computer that manages services with systemd, the file is /etc/sysconfig/docker. On other systems, the environment file is /etc/default/docker. Verify that the permissions of the environment file are correctly set to "644" or more restrictive.

Scan Frequency¶

• 0 */30 * * *

Theoretical Basis¶

• Docker environment files contain sensitive parameters that can alter the behavior of the Docker daemon at runtime. Therefore, it should only be writable by "root" to maintain the integrity of the file.

Risk Items¶

• Container Security

Audit Method¶

• Run the following command to verify that the environment file permissions are set to "644" or more restrictive:

stat -c %a /etc/sysconfig/docker

Remediation¶

• Execute the following command:

  #> chmod 644 /etc/sysconfig/docker
  

  This sets the file permissions of the environment file to "644".

Impact¶

• None

Default Value¶

• By default, the file permissions of this file are correctly set to "644".

References¶

• systemd

CIS Controls¶

• None