Rancher RKE2 must store only cryptographic representations of passwords.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-254567	CNTR-R2-000800	SV-254567r894461_rule		Medium

Description
Secrets, such as passwords, keys, tokens, and certificates should not be stored as environment variables. These environment variables are accessible inside RKE2 by the "Get Pod" API call, and by any system, such as CI/CD pipeline, which has access to the definition file of the container. Secrets must be mounted from files or stored within password vaults.

STIG	Date
Rancher Government Solutions RKE2 Security Technical Implementation Guide	2023-02-27

Details

Check Text ( C-58051r894460_chk )
On the RKE2 Control Plane, run the following commands: kubectl get pods -A kubectl get jobs -A kubectl get cronjobs -A This will output all running pods, jobs, and cronjobs. Evaluate each of the above commands using the respective commands below: kubectl get pod -n -o yaml kubectl get job -n -o yaml kubectl get cronjob -n -o yaml If any contain sensitive values as environment variables, this is a finding.

Check Text ( C-58051r894460_chk )

On the RKE2 Control Plane, run the following commands:

kubectl get pods -A
kubectl get jobs -A
kubectl get cronjobs -A

This will output all running pods, jobs, and cronjobs.

Evaluate each of the above commands using the respective commands below:

kubectl get pod -n -o yaml
kubectl get job -n -o yaml
kubectl get cronjob -n -o yaml

If any contain sensitive values as environment variables, this is a finding.

Fix Text (F-58000r859270_fix)
Any secrets stored as environment variables must be moved to the secret files with the proper protections and enforcements or placed within a password vault.