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AlmaLinux OS 9 PAM must be configured to use a sufficient number of password hashing rounds.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-269398ALMA-09-037200SV-269398r1050281_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. Using more hashing rounds makes password cracking attacks more difficult.
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-269398r1050281_chk)

Verify the number of rounds for the password hashing algorithm is configured with the following command: $ grep rounds /etc/pam.d/password-auth /etc/pam.d/system-auth /etc/pam.d/password-auth:password sufficient pam_unix.so sha512 shadow rounds=100000 use_authtok /etc/pam.d/system-auth:password sufficient pam_unix.so sha512 shadow rounds=100000 use_authtok If a matching line is not returned in both files, or "rounds" is less than "100000", this a finding. Add/modify the appropriate sections of the "/etc/pam.d/password-auth" file to match the following lines, ensuring that the "preauth" line is listed before pam_unix.so

Fix Text (F-73330r1049631_fix)

Configure AlmaLinux OS 9 to use at least 100000 hashing rounds for hashing passwords. Add or modify the following line in "/etc/pam.d/password-auth" and "/etc/pam.d/system-auth" and set "rounds" to "100000" or higher: password sufficient pam_unix.so sha512 rounds=100000