The Ubuntu operating system must require users to reauthenticate for privilege escalation or when changing roles.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-238208 | UBTU-20-010014 | SV-238208r1101674_rule | CCI-002038 | 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. Satisfies: SRG-OS-000373-GPOS-00156, SRG-OS-000373-GPOS-00157 | ||||
| STIG | Date | |||
| Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide | 2025-05-16 | |||
Details
Check Text (C-238208r1101674_chk)
Verify the "/etc/sudoers" file has no occurrences of "!authenticate" by running 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-41377r1101673_fix)
Remove any occurrence of "!authenticate" found in "/etc/sudoers" file or files in the "/etc/sudoers.d" directory.