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← Back to Amazon Linux 2023 Security Technical Implementation Guide

V-274014

CAT II (Medium)

Amazon Linux 2023 must require reauthentication when using the "sudo" command.

Rule ID

SV-274014r1120030_rule

STIG

Amazon Linux 2023 Security Technical Implementation Guide

Version

V1R3

CCIs

CCI-002038

Discussion

Without reauthentication, users may access resources or perform tasks for which they do not have authorization.

Check Content

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

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