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AlmaLinux OS 9 must enable certificate based smart card authentication.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-269372ALMA-09-033790SV-269372r1050617_ruleCCI-004046medium
Description
Using an authentication device, such as a CAC or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device. Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification card and the DOD Common Access Card. A privileged account is defined as an information system account with authorizations of a privileged user. Remote access is access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management). This requires further clarification from NIST. Satisfies: SRG-OS-000375-GPOS-00160, SRG-OS-000105-GPOS-00052, SRG-OS-000705-GPOS-00150
STIGDate
Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide2026-02-27

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) 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-06.4Out-of-Band Multi-Factor Authentication
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (60) 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-11Device Lock
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-2(1)Automated System Account Management
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

+50 more (top 10 by confidence shown)

CCI1 mapping
CCI-004046
1.00

Details

Check Text (C-269372r1050617_chk)

Note: If the System Administrator demonstrates the use of an approved alternate multifactor authentication method, this requirement is Not Applicable. Verify that AlmaLinux OS 9 has smart cards are enabled in System Security Services Daemon (SSSD), run the following command: $ grep pam_cert_auth /etc/sssd/sssd.conf /etc/sssd/conf.d/*.conf /etc/sssd/conf.d/certificate_verification.conf:pam_cert_auth = True If "pam_cert_auth" is not set to "True", the line is commented out, or the line is missing, this is a finding.

Fix Text (F-73304r1048493_fix)

Edit the file "/etc/sssd/sssd.conf" or a "*.conf" file within the "/etc/sssd/conf.d/" directory and add or edit the following line within the [pam] section: pam_cert_auth = True