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

Amazon Linux 2023 system-auth must be configured to use a sufficient number of hashing rounds.

DISA Rule

SV-274163r1120477_rule

Vulnerability Number

V-274163

Group Title

SRG-OS-000073-GPOS-00041

Rule Version

AZLX-23-002495

Severity

CAT II

CCI(s)

• CCI-004062 - For password-based authentication, store passwords using an approved salted key derivation function, preferably using a keyed hash.
• CCI-000803 - Implement mechanisms for authentication to a cryptographic module that meet the requirements of applicable laws, Executive Orders, directives, policies, regulations, standards, and guidance for such authentication.

Weight

10

Fix Recommendation

Configure Amazon Linux 2023 to use 100000 hashing rounds for hashing passwords.

Add or modify the following line in "/etc/pam.d/system-auth" and set "rounds" to "100000".

password sufficient pam_unix.so sha512 rounds=100000

Check Contents

Verify Amazon Linux 2023 has the required number of rounds for the password hashing algorithm is configured in system-auth with the following command:

$ sudo grep rounds /etc/pam.d/system-auth
password sufficient pam_unix.so sha512 rounds=100000

If a matching line is not returned or "rounds" is less than "100000", this a finding.

Vulnerability Number

V-274163

Documentable

False

Rule Version

AZLX-23-002495

Severity Override Guidance

Verify Amazon Linux 2023 has the required number of rounds for the password hashing algorithm is configured in system-auth with the following command:

$ sudo grep rounds /etc/pam.d/system-auth
password sufficient pam_unix.so sha512 rounds=100000

If a matching line is not returned or "rounds" is less than "100000", this a finding.

Check Content Reference

M

Target Key

5700