STIGQter: STIG Summary: Mirantis Kubernetes Engine Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 24 Jul 2024:

MKE must use a non-AUFS storage driver.

DISA Rule

SV-260926r966135_rule

Vulnerability Number

V-260926

Group Title

SRG-APP-000141-CTR-000315

Rule Version

CNTR-MK-000600

Severity

CAT II

CCI(s)

• CCI-000382 - Configure the system to prohibit or restrict the use of organization-defined prohibited or restricted functions, system ports, protocols, software, and/or services.

Weight

10

Fix Recommendation

Modify Storage Driver setting.

Via CLI as a trusted user on the underlying host operating system:

If the daemon.json file does not exist, it must be created.

"/etc/docker/daemon.json"

Edit the "/etc/docker/daemon.json" file and set the "storage-driver" property to a value that is not "aufs" or "btrfs".
{
"storage-driver": "overlay2"
}

Restart the Docker daemon by executing the following:

sudo systemctl restart docker

Check Contents

The default storage driver for MCR is overlay2. To confirm this has not been changed via CLI:

As a trusted user on the underlying host operating system, execute the following command:

docker info | grep -e "Storage Driver:"

If the Storage Driver setting contains *aufs or *btrfs, then this is a finding. If the above command returns no values, this is not a finding.

Vulnerability Number

V-260926

Documentable

False

Rule Version

CNTR-MK-000600

Severity Override Guidance

The default storage driver for MCR is overlay2. To confirm this has not been changed via CLI:

As a trusted user on the underlying host operating system, execute the following command:

docker info | grep -e "Storage Driver:"

If the Storage Driver setting contains *aufs or *btrfs, then this is a finding. If the above command returns no values, this is not a finding.

Check Content Reference

M

Target Key

5595