STIGQter: STIG Summary: Amazon Linux 2023 Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 01 Jul 2026:

Amazon Linux 2023 must enable the Pluggable Authentication Module (PAM) interface for SSHD.

DISA Rule

SV-274052r1120144_rule

Vulnerability Number

V-274052

Group Title

SRG-OS-000125-GPOS-00065

Rule Version

AZLX-23-001255

Severity

CAT I

CCI(s)

• CCI-000877 - Employ strong authentication in the establishment of nonlocal maintenance and diagnostic sessions.

Weight

10

Fix Recommendation

Configure Amazon Linux 2023 SSHD to use the UsePAM interface.

Add or modify the following line in "/etc/ssh/sshd_config":

UsePAM yes

Restart the SSH daemon for the settings to take effect:

$ sudo systemctl restart sshd.service

Check Contents

Verify Amazon Linux 2023 SSHD is configured to allow for the UsePAM interface with the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*usepam'
/etc/ssh/sshd_config.d/50-redhat.conf:UsePAM yes

If the "UsePAM" keyword is set to "no", is missing, or is commented out, this is a finding.

Vulnerability Number

V-274052

Documentable

False

Rule Version

AZLX-23-001255

Severity Override Guidance

Verify Amazon Linux 2023 SSHD is configured to allow for the UsePAM interface with the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*usepam'
/etc/ssh/sshd_config.d/50-redhat.conf:UsePAM yes

If the "UsePAM" keyword is set to "no", is missing, or is commented out, this is a finding.

Check Content Reference

M

Target Key

5700