DISA STIGS Viewer

Finding ID	Version	Rule ID	IA Controls	Severity
V-274882	CNTR-K8-001162	SV-274882r1107233_rule		High

Description

Kubernetes Secrets may store sensitive information such as passwords, tokens, and keys. These values are stored in the etcd database used by Kubernetes unencrypted. To protect these Secrets at rest, these values must be encrypted.

STIG	Date
Kubernetes Security Technical Implementation Guide	2025-05-16

Check Text (C-78983r1107231_chk)

Change to the /etc/kubernetes/manifests directory on the Kubernetes Master Node. Run the command: grep -i encryption-provider-config * If the setting "encryption-provider-config" is not configured, this is a finding. If the setting is configured, check the contents of the file specified by its argument. If the file does not specify the Secret's resource, this is a finding. If the identity provider is specified as the first provider for the resource, this is also a finding.

Fix Text (F-78888r1107232_fix)

Edit the Kubernetes API Server manifest file in the /etc/kubernetes/manifests directory on the Kubernetes Master Node. Set the value of "--encryption-provider-config" to the path to the encryption config. The encryption config must specify the Secret's resource and provider. Below is an example: { "kind": "EncryptionConfiguration", "apiVersion": "apiserver.config.k8s.io/v1", "resources": [ { "resources": [ "secrets" ], "providers": [ { "aescbc": { "keys": [ { "name": "aescbckey", "secret": "xxxxxxxxxxxxxxxxxxx" } ] } }, { "identity": {} } ] } ] }