Red Hat Enterprise Linux CoreOS (RHCOS) must initiate session audits at system startup.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
high	V-257519	SRG-APP-000092-CTR-000165	CNTR-OS-000170	SV-257519r960888_rule	2024-12-06	2

Description
Initiating session audits at system startup allows for comprehensive monitoring of user activities and system events from the moment the system is powered on. Audit logs capture information about login attempts, commands executed, file access, and other system activities. By starting session audits at system startup, RHCOS ensures that all relevant events are recorded, providing a complete security monitoring solution. Some audit systems also maintain state information only available if auditing is enabled before a given process is created. By initiating session audits at system startup, RHCOS enhances security monitoring, aids in timely incident detection and response, meets compliance requirements, facilitates forensic analysis, and promotes accountability and governance.

Description

Initiating session audits at system startup allows for comprehensive monitoring of user activities and system events from the moment the system is powered on. Audit logs capture information about login attempts, commands executed, file access, and other system activities. By starting session audits at system startup, RHCOS ensures that all relevant events are recorded, providing a complete security monitoring solution. Some audit systems also maintain state information only available if auditing is enabled before a given process is created. By initiating session audits at system startup, RHCOS enhances security monitoring, aids in timely incident detection and response, meets compliance requirements, facilitates forensic analysis, and promotes accountability and governance.

ℹ️ Check
Verify the RHCOS boot loader configuration has audit enabled, including backlog: for node in $(oc get node -oname); do oc debug $node -- chroot /host /bin/bash -c 'echo -n "$HOSTNAME "; grep audit /boot/loader/entries/*.conf \|\| echo "not found"' 2>/dev/null; done If "audit" is not set to "1" or returns "not found", this is a finding. If "audit_backlog" is not set to 8192 or returns "not found", this is a finding.

ℹ️ Check

Verify the RHCOS boot loader configuration has audit enabled, including backlog: for node in $(oc get node -oname); do oc debug $node -- chroot /host /bin/bash -c 'echo -n "$HOSTNAME "; grep audit /boot/loader/entries/*.conf || echo "not found"' 2>/dev/null; done If "audit" is not set to "1" or returns "not found", this is a finding. If "audit_backlog" is not set to 8192 or returns "not found", this is a finding.

✔️ Fix
Apply the machine config by executing the following: for mcpool in $(oc get mcp -oname \| sed "s:.*/::" ); do echo "apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: name: 05-kernelarg-audit-enabled-$mcpool labels: machineconfiguration.openshift.io/role: $mcpool spec: config: ignition: version: 3.1.0 kernelArguments: - audit=1 - audit_backlog_limit=8192 " \| oc create -f - done

✔️ Fix

Apply the machine config by executing the following: for mcpool in $(oc get mcp -oname | sed "s:.*/::" ); do echo "apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: name: 05-kernelarg-audit-enabled-$mcpool labels: machineconfiguration.openshift.io/role: $mcpool spec: config: ignition: version: 3.1.0 kernelArguments: - audit=1 - audit_backlog_limit=8192 " | oc create -f - done