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

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-274163AZLX-23-002495SV-274163r1120477_ruleCCI-004062medium
Description
Unapproved mechanisms used for authentication to the cryptographic module are not verified and therefore, cannot be relied upon to provide confidentiality or integrity, and DOD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DOD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. Satisfies: SRG-OS-000073-GPOS-00041, SRG-OS-000120-GPOS-00061
STIGDate
Amazon Linux 2023 Security Technical Implementation Guide2026-02-27

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-10Authenticator Management
0.50
IAC-10.1Password-Based Authentication
0.50
IAC-10.4Automated Support For Password Strength
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (58) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-3(4)Discretionary Access Control
1.00

+48 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.5.10
1.00
3.5.7
1.00
3.5.8
1.00
3.5.9
1.00
CCI1 mapping
CCI-004062
1.00

Details

Check Text (C-274163r1120477_chk)

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.

Fix Text (F-78159r1120476_fix)

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