Details

Verify that all the registry certificate files (usually found under/etc/docker/certs.d/directory) are owned and group-owned by ‘root’.

Rationale:

/etc/docker/certs.d/directory contains Docker registry certificates. These certificate files must be owned and group-owned by ‘root’ to maintain the integrity of the certificates.

Solution

chown root:root /etc/docker/certs.d//*

This would set the ownership and group-ownership for the registry certificate files to ‘root’.

Impact:

None.

Default Value:

By default, the ownership and group-ownership for registry certificate files is correctly set to ‘root’.

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/1476

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.

References

• 800-53|CM-6b.

Source

• Tenable.com/audits