cyberstrikeus Ensure that the Docker server certificate key file ownership is set to root:root (Manual)
Profile Applicability
- Level 1 - Docker - Linux
Description
You should verify that the Docker server certificate key file (the file that is passed along with the --tlskey parameter) is individually owned and group owned by root.
Rationale
The Docker server certificate key file should be protected from any tampering or unneeded reads/writes. As it holds the private key for the Docker server certificate, it must be individually owned and group owned by root to ensure that it cannot be accessed by less privileged users.
Impact
None.
Audit Procedure
You should execute the command below to verify that the Docker server certificate key file is individually owned and group owned by root:
stat -c %U:%G <path to Docker server certificate key file> | grep -v root:root
The command above should return no results.
Remediation
You should execute the following command:
chown root:root <path to Docker server certificate key file>
This sets the individual ownership and group ownership for the Docker server certificate key file to root.
Default Value
By default, the individual ownership and group ownership for the Docker server certificate key file is correctly set to root.
References
CIS Controls
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 5.4 Restrict Administrator Privileges to Dedicated Administrator Accounts - Restrict administrator privileges to dedicated administrator accounts on enterprise assets. Conduct general computing activities, such as internet browsing, email, and productivity suite use, from the user's primary, non-privileged account. | ● | ● | ● |
| v7 | 4 Controlled Use of Administrative Privileges - Controlled Use of Administrative Privileges |