Title

Amazon Linux 2023 must require users to reauthenticate for privilege escalation. (Cat II impact)

Discussion

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

Check Content

Verify Amazon Linux 2023 requires users to reauthenticate for privilege escalation. Ensure that "/etc/sudoers" has no occurrences of "!authenticate" with the following command: $ sudo grep -ir '!authenticate' /etc/sudoers /etc/sudoers.d/ If any occurrences of "!authenticate" are returned, this is a finding.

Fix Text

Configure Amazon Linux 2023 to not allow users to execute privileged actions without authenticating. Remove any occurrence of "!authenticate" found in "/etc/sudoers" file or files in the "/etc/sudoers.d" directory. $ sudo sed -i '/\!authenticate/ s/^/# /g' /etc/sudoers /etc/sudoers.d/*

Additional Identifiers

Rule ID: SV-274015r1120033_rule

Vulnerability ID: V-274015

Group Title: SRG-OS-000373-GPOS-00156

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.