TOSS must require users to provide a password for privilege escalation.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-252959	TOSS-04-020190	SV-252959r1050790_rule		Medium

Description

Without re-authentication, 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
Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide	2025-05-08

Details

Check Text (C-56412r986586_chk)

Verify that "/etc/sudoers" has no occurrences of "NOPASSWD."

Check that the "/etc/sudoers" file has no occurrences of "NOPASSWD" by running the following command:

$ sudo grep -i nopasswd /etc/sudoers /etc/sudoers.d/*

%admin ALL=(ALL) NOPASSWD: ALL

If any occurrences of "NOPASSWD" are returned from the command and have not been documented with the information system security officer (ISSO) as an organizationally defined administrative group utilizing multifactor authentication (MFA), this is a finding.

Fix Text (F-56362r824200_fix)

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