The audit system must be configured to audit the loading and unloading of dynamic kernel modules - /sbin/insmod.

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Associated with IA controls: ECAR-3, ECAR-2, ECAR-1

Associated with: CCI-000126

SV-37734r2_rule The audit system must be configured to audit the loading and unloading of dynamic kernel modules - /sbin/insmod.

Vulnerability discussion

Actions concerning dynamic kernel modules must be recorded as they are substantial events. Dynamic kernel modules can increase the attack surface of a system. A malicious kernel module can be used to substantially alter the functioning of a system, often with the purpose of hiding a compromise from the SA.

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Fix text

The use of audit keys consistent with the provided example is encouraged to provide for uniform audit logs, however omitting the audit key or using an alternate audit key is not a finding. Procedure: Configure auditing of the /sbin/insmod, files. Add the following to the "etc/audit/audit.rules" or "etc/audit.rules" file: -w /sbin/insmod -p x Restart the auditd service. # service auditd restart

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