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/1726

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.
• CSCv6|5.1

Source

• Tenable.com/audits