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RHEL 10 must map the authenticated identity to the user or group account for public key infrastructure (PKI)-based authentication.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-281330RHEL-10-701280SV-281330r1167140_ruleCCI-000187medium
Description
Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the individual user or group will not be available for forensic analysis.
STIGDate
Red Hat Enterprise Linux 10 Security Technical Implementation Guide2026-03-11

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-10.2PKI-Based Authentication
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (69) 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

+59 more (top 10 by confidence shown)

CCI1 mapping
CCI-000187
1.00

Details

Check Text (C-281330r1167140_chk)

Note: If the system administrator (SA) demonstrates the use of an approved alternate multifactor authentication method, this requirement is not applicable. Verify RHEL 10 maps the authenticated identity to the user or group account for PKI-based authentication. Verify the certificate of the user or group is mapped to the corresponding user or group in the "sssd.conf" file with the following command: $ sudo find /etc/sssd/sssd.conf /etc/sssd/conf.d/ -type f -exec cat {} \; [certmap/testing.test/rule_name] matchrule =<SAN>.*EDIPI@mil maprule = (userCertificate;binary={cert!bin}) domains = testing.test If the certmap section does not exist, ask the SA to indicate how certificates are mapped to accounts. If there is no evidence of certificate mapping, this is a finding.

Fix Text (F-85796r1167139_fix)

Configure RHEL 10 to map the authenticated identity to the user or group account by adding or modifying the certmap section of the "/etc/sssd/sssd.conf" file based on the following example: [certmap/testing.test/rule_name] matchrule = .*EDIPI@mil maprule = (userCertificate;binary={cert!bin}) domains = testing.test Restart the "sssd" service with the following command for the changes to take effect: $ sudo systemctl restart sssd.service