STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must map the authenticated identity to the user or group account for PKI-based authentication.

DISA Rule

SV-271606r1091530_rule

Vulnerability Number

V-271606

Group Title

SRG-OS-000068-GPOS-00036

Rule Version

OL09-00-000910

Severity

CAT II

CCI(s)

• CCI-000187 - For public key-based authentication, map the authenticated identity to the account of the individual or group.

Weight

10

Fix Recommendation

Configure OL 9 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})
dmains = testing.test

The "sssd" service must be restarted for the changes to take effect. To restart the "sssd" service, run the following command:

$ sudo systemctl restart sssd.service

Check Contents

Verify that OL 9 maps the authenticated identity to the certificate of the user or group to the corresponding user or group in the "sssd.conf" file with the following command:

$ sudo cat /etc/sssd/sssd.conf
[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 system administrator (SA) to indicate how certificates are mapped to accounts. If there is no evidence of certificate mapping, this is a finding.

Vulnerability Number

V-271606

Documentable

False

Rule Version

OL09-00-000910

Severity Override Guidance

Verify that OL 9 maps the authenticated identity to the certificate of the user or group to the corresponding user or group in the "sssd.conf" file with the following command:

$ sudo cat /etc/sssd/sssd.conf
[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 system administrator (SA) to indicate how certificates are mapped to accounts. If there is no evidence of certificate mapping, this is a finding.

Check Content Reference

M

Target Key

5680