Ubuntu 24.04 LTS must require users to reauthenticate for privilege escalation or when changing roles.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-270707	UBTU-24-300021	SV-270707r1101786_rule		Medium

Description

Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operating systems provide the capability to escalate a functional capability, it is critical the user reauthenticate.

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

Details

Check Text (C-74740r1101784_chk)

Verify the "/etc/sudoers" file has no occurrences of "!authenticate" with the following command:

$ sudo egrep -iR '!authenticate' /etc/sudoers /etc/sudoers.d/

If any occurrences of "!authenticate" return from the command, this is a finding.

Fix Text (F-74641r1101785_fix)

Remove any occurrence of "!authenticate" found in "/etc/sudoers" file or files in the "/etc/sudoers.d" directory.