Amazon Linux 2023 must require reauthentication when using the "sudo" command.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-274014 | AZLX-23-001010 | SV-274014r1120030_rule | CCI-002038 | medium |
| Description | ||||
| Without reauthentication, users may access resources or perform tasks for which they do not have authorization. | ||||
| STIG | Date | |||
| Amazon Linux 2023 Security Technical Implementation Guide | 2026-02-27 | |||
Details
Check Text (C-274014r1120030_chk)
Verify Amazon Linux 2023 requires reauthentication when using the "sudo" command to elevate privileges with the following command:
$ sudo grep -ir 'timestamp_timeout' /etc/sudoers /etc/sudoers.d/
/etc/sudoers:Defaults timestamp_timeout=0
If results are returned from more than one file location, this is a finding.
If "timestamp_timeout" is set to a negative number, is commented out, or no results are returned, this is a finding.
Fix Text (F-78010r1120029_fix)
Configure Amazon Linux 2023 to reauthenticate "sudo" commands after the specified timeout:
Add the following line to "/etc/sudoers" or a file in "/etc/sudoers.d":
Defaults timestamp_timeout=0