The SUSE operating system must reauthenticate users when changing authenticators, roles, or escalating privileges.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-217112	SLES-12-010110	SV-217112r646686_rule		High

Description
Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When SUSE operating system provide the capability to change user authenticators, change security roles, or escalate a functional capability, it is critical the user reauthenticate. Satisfies: SRG-OS-000373-GPOS-00156, SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00158

STIG	Date
SLES 12 Security Technical Implementation Guide	2021-03-04

Details

Check Text ( C-18340r646685_chk )
Verify that the SUSE operating system requires reauthentication when changing authenticators, roles, or escalating privileges. Check that "/etc/sudoers" has no occurrences of "NOPASSWD" or "!authenticate" with the following command: > sudo egrep -i '(nopasswd\|!authenticate)' /etc/sudoers If any uncommented lines containing "!authenticate", or "NOPASSWD" are returned and active accounts on the system have valid passwords, this is a finding.

Check Text ( C-18340r646685_chk )

Verify that the SUSE operating system requires reauthentication when changing authenticators, roles, or escalating privileges.

Check that "/etc/sudoers" has no occurrences of "NOPASSWD" or "!authenticate" with the following command:

> sudo egrep -i '(nopasswd|!authenticate)' /etc/sudoers

If any uncommented lines containing "!authenticate", or "NOPASSWD" are returned and active accounts on the system have valid passwords, this is a finding.

Fix Text (F-18338r369493_fix)
Configure the SUSE operating system to remove any occurrence of "NOPASSWD" or "!authenticate" found in the "/etc/sudoers" file. If the system does not use passwords for authentication, the "NOPASSWD" tag may exist in the file.