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AlmaLinux OS 9 must be configured so that the Pluggable Authentication Module is configured to store only encrypted representations of passwords.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-269401ALMA-09-037530SV-269401r1050284_ruleCCI-004062high
Description
Passwords must be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. The system must use a strong hashing algorithm to store the password.
STIGDate
Cloud Linux AlmaLinux OS 9 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-269401r1050284_chk)

Verify that the pam_unix.so module is configured to use sha512 in /etc/pam.d/password-auth with the following command: $ grep -E "password.*pam_unix.so.*sha512" /etc/pam.d/password-auth password sufficient pam_unix.so sha512 shadow rounds=100000 use_authtok If "sha512" is missing, or the line is commented out, this is a finding.

Fix Text (F-73333r1049637_fix)

Configure AlmaLinux OS 9 to use the SHA-512 algorithm for password hashing. Edit/modify the following line in the "/etc/pam.d/password-auth" file to include the sha512 option for pam_unix.so: password sufficient pam_unix.so sha512 shadow rounds=100000 use_authtok