OL 9 must configure SELinux context type to allow the use of a nondefault faillock tally directory.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-271836	SRG-OS-000021-GPOS-00005	OL09-00-003010	SV-271836r1092637_rule	2025-05-08	1

Description
Not having the correct SELinux context on the faillock directory may lead to unauthorized access to the directory.

ℹ️ Check
Note: If the system does not have SELinux enabled and enforcing a targeted policy, or if the pam_faillock module is not configured for use, this requirement is Not Applicable. Verify that OL 9 configures the SELinux context type to allow the use of a nondefault faillock tally directory. Verify the location of the nondefault tally directory for the pam_faillock module with the following command: $ grep 'dir =' /etc/security/faillock.conf dir = /var/log/faillock Check the security context type of the nondefault tally directory with the following command: $ ls -Zd /var/log/faillock unconfined_u:object_r:faillog_t:s0 /var/log/faillock If the security context type of the nondefault tally directory is not "faillog_t", this is a finding.

ℹ️ Check

Note: If the system does not have SELinux enabled and enforcing a targeted policy, or if the pam_faillock module is not configured for use, this requirement is Not Applicable. Verify that OL 9 configures the SELinux context type to allow the use of a nondefault faillock tally directory. Verify the location of the nondefault tally directory for the pam_faillock module with the following command: $ grep 'dir =' /etc/security/faillock.conf dir = /var/log/faillock Check the security context type of the nondefault tally directory with the following command: $ ls -Zd /var/log/faillock unconfined_u:object_r:faillog_t:s0 /var/log/faillock If the security context type of the nondefault tally directory is not "faillog_t", this is a finding.

✔️ Fix
Configure OL 9 to allow the use of a nondefault faillock tally directory while SELinux enforces a targeted policy. Create a nondefault faillock tally directory (if it does not already exist) with the following example: $ sudo mkdir /var/log/faillock Update the /etc/selinux/targeted/contexts/files/file_contexts.local with "faillog_t" context type for the nondefault faillock tally directory with the following command: $ sudo semanage fcontext -a -t faillog_t "/var/log/faillock(/.*)?" Update the context type of the nondefault faillock directory/subdirectories and files with the following command: $ sudo restorecon -R -v /var/log/faillock

✔️ Fix

Configure OL 9 to allow the use of a nondefault faillock tally directory while SELinux enforces a targeted policy. Create a nondefault faillock tally directory (if it does not already exist) with the following example: $ sudo mkdir /var/log/faillock Update the /etc/selinux/targeted/contexts/files/file_contexts.local with "faillog_t" context type for the nondefault faillock tally directory with the following command: $ sudo semanage fcontext -a -t faillog_t "/var/log/faillock(/.*)?" Update the context type of the nondefault faillock directory/subdirectories and files with the following command: $ sudo restorecon -R -v /var/log/faillock