Ubuntu 24.04 LTS must have system commands set to a mode of 0755 or less permissive.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-270701	UBTU-24-300011	SV-270701r1066592_rule		Medium

Description

If Ubuntu 24.04 LTS were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to Ubuntu 24.04 LTS with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs that execute with escalated privileges. Only qualified and authorized individuals must be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications.

STIG	Date
Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide	2025-05-16

Details

Check Text (C-74734r1066590_chk)

Verify the system commands contained in the following directories have mode 0755 or less permissive with the following command:

$ sudo find /bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin -perm /022 -type f -exec stat -c "%n %a" '{}' \;

If any files are found to be group-writable or world-writable, this is a finding.

Fix Text (F-74635r1066591_fix)

Configure the system commands to be protected from unauthorized access. Run the following command:

$ sudo find /bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin -perm /022 -type f -exec chmod 755 '{}' \;