3.10 Verify that TLS CA certificate file permissions are set to 444 or more restrictive

Information

Verify that the TLS CAcertificate file (the file that is passed alongwith '--tlscacert'parameter) has permissions of '444'or more restrictive.

Rationale:

The TLS CA certificate file should be protected from any tampering. It is used to authenticate Docker server based on given CA certificate. Hence, itmust have permissions of '444'to maintain the integrity of the CA certificate.

Solution

chmod 444 <path to TLS CA certificate file>



This would set the file permissions of the TLS CA file to '444'.

Impact:

None.

Default Value:

By default, the permissions for TLS CA certificate file might not be '444'. The default file permissions are governed by the system or user specific umask values.

See Also

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

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b.

Plugin: Unix

Control ID: bb92f44b0cfcdcc723bb4211327a1d0152047517c4a641acd14d4921097a9193