3.13 Ensure that Docker server certificate key file ownership is set to root:root

Information

Verify that the Docker server certificate key file (the file that is passed alongwith --tlskey parameter) is owned and group-owned by root.
Rationale:
The Docker server certificate key file should be protected from any tampering or unneeded reads. It holds the private key for the Docker server certificate. Hence, it must be owned and group-owned by root to maintain the integrity of the Docker server certificate.

Solution

chown root:root <path to Docker server certificate key file>
This would set the ownership and group-ownership for the Docker server certificate key file to root.
Impact:
None.
Default Value:
By default, the ownership and group-ownership for Docker server certificate key file is correctly set to root.

See Also

https://workbench.cisecurity.org/files/1726

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CSCv6|5.1

Plugin: Unix

Control ID: 6e42533834acdd66989d2700617a2595b7b5cdf8c6380b212835c1b3e1f10710