The Ubuntu operating system must generate audit records when successful/unsuccessful attempts to use modprobe command.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-238318	UBTU-20-010296	SV-238318r654129_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).

STIG	Date
Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide	2022-12-06

Details

Check Text ( C-41528r654127_chk )
Verify if the Ubuntu operating system is configured to audit the execution of the module management program "modprobe" by running the following command: $ sudo auditctl -l \| grep "/sbin/modprobe" -w /sbin/modprobe -p x -k modules If the command does not return a line, or the line is commented out, this is a finding. Note: The "-k" allows for specifying an arbitrary identifier, and the string after it does not need to match the example output above.

Check Text ( C-41528r654127_chk )

Verify if the Ubuntu operating system is configured to audit the execution of the module management program "modprobe" by running the following command:

$ sudo auditctl -l | grep "/sbin/modprobe"

-w /sbin/modprobe -p x -k modules

If the command does not return a line, or the line is commented out, this is a finding.

Note: The "-k" allows for specifying an arbitrary identifier, and the string after it does not need to match the example output above.

Fix Text (F-41487r654128_fix)
Configure the Ubuntu operating system to audit the execution of the module management program "modprobe". Add or update the following rule in the "/etc/audit/rules.d/stig.rules" file: -w /sbin/modprobe -p x -k modules To reload the rules file, issue the following command: $ sudo augenrules --load