The Red Hat Enterprise Linux operating system must audit all uses of the finit_module syscall.

From Red Hat Enterprise Linux 7 Security Technical Implementation Guide

Part of SRG-OS-000471-GPOS-00216

Associated with: CCI-000172

SV-93707r2_rule The Red Hat Enterprise Linux operating system must audit all uses of the finit_module syscall.

Vulnerability discussion

Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter).Satisfies: SRG-OS-000471-GPOS-00216, SRG-OS-000477-GPOS-00222

Check content

Verify the operating system generates audit records when successful/unsuccessful attempts to use the "finit_module" syscall occur. Check the auditing rules in "/etc/audit/audit.rules" with the following command: Note: The output lines of the command are duplicated to cover both 32-bit and 64-bit architectures. Only the line appropriate for the system architecture must be present. # grep -iw finit_module /etc/audit/audit.rules -a always,exit -F arch=b32 -S finit_module -k module-change -a always,exit -F arch=b64 -S finit_module -k module-change If there are no audit rules defined for "finit_module", this is a finding.

Fix text

Configure the operating system to generate audit records when successful/unsuccessful attempts to use the "finit_module" syscall occur. Add or update the following rules in "/etc/audit/rules.d/audit.rules": Note: The rules are duplicated to cover both 32-bit and 64-bit architectures. Only the lines appropriate for the system architecture must be configured. -a always,exit -F arch=b32 -S finit_module -k module-change -a always,exit -F arch=b64 -S finit_module -k module-change The audit daemon must be restarted for the changes to take effect.

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