All uses of the modprobe command must be audited.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-72195	RHEL-07-030860	SV-86819r2_rule		Medium

Description
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

Description

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

STIG	Date
Red Hat Enterprise Linux 7 Security Technical Implementation Guide	2017-07-08

Details

Check Text ( C-72429r3_chk )
Verify the operating system generates audit records when successful/unsuccessful attempts to use the "modprobe" command 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 -i modprobe /etc/audit/audit.rules If the command does not return the following output (appropriate to the architecture), this is a finding. -w /sbin/modprobe -p x -F auid!=4294967295 -k module-change If the command does not return any output, this is a finding.

Check Text ( C-72429r3_chk )

Verify the operating system generates audit records when successful/unsuccessful attempts to use the "modprobe" command 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 -i modprobe /etc/audit/audit.rules

If the command does not return the following output (appropriate to the architecture), this is a finding.

-w /sbin/modprobe -p x -F auid!=4294967295 -k module-change

If the command does not return any output, this is a finding.

Fix Text (F-78549r4_fix)
Configure the operating system to generate audit records when successful/unsuccessful attempts to use the "modprobe" command occur. Add or update the following rule in "/etc/audit/rules.d/audit.rules" (removing those that do not match the CPU architecture): -w /sbin/modprobe -p x -F auid!=4294967295 -k module-change The audit daemon must be restarted for the changes to take effect.