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Kubernetes API Server audit logs must be enabled.


Overview

Finding ID Version Rule ID IA Controls Severity
V-242461 CNTR-K8-003280 SV-242461r712739_rule Medium
Description
Kubernetes API Server validates and configures pods and services for the API object. The REST operation provides frontend functionality to the cluster share state. Enabling audit logs provides a way to monitor and identify security risk events or misuse of information. Audit logs are necessary to provide evidence in the case the Kubernetes API Server is compromised requiring a Cyber Security Investigation.
STIG Date
Kubernetes Security Technical Implementation Guide 2021-04-14

Details

Check Text ( C-45736r712737_chk )
Change to the /etc/kubernetes/manifests directory on the Kubernetes Master Node. Run the command:

grep -i audit-policy-file *

If the setting "audit-policy-file" is not set or is found in the Kubernetes API manifest file without valid content, this is a finding.
Fix Text (F-45694r712738_fix)
Edit the Kubernetes API Server manifest file in the /etc/kubernetes/manifests directory on the Kubernetes Master Node. Set the argument "--audit-policy-file" to "log file directory".