RHEL 10 must mount "/var/log/audit" with the "nosuid" option.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-281093RHEL-10-400410SV-281093r1165634_ruleCCI-001764medium
Description
The "nosuid" mount option causes the system to not execute "setuid" and "setgid" files with owner privileges. This option must be used for mounting any file system not containing approved "setuid" and "setguid" files. Executing files from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access.
STIGDate
Red Hat Enterprise Linux 10 Security Technical Implementation Guide2026-03-11

Details

Check Text (C-281093r1165634_chk)

Verify RHEL 10 is configured so that "/var/log/audit" is mounted with the "nosuid" option: $ mount | grep /var/log/audit /dev/mapper/luks-4e45e1ad-5337-42c4-a19f-ee12ccc1d502 on /var/log/audit type xfs (rw,nodev,nosuid,noexec,seclabel) If the "/var/log/audit" file system is mounted without the "nosuid" option, this is a finding.

Fix Text (F-85559r1165633_fix)

Configure RHEL 10 to mount "/var/log/audit" with the "nosuid" option. Modify "/etc/fstab" to use the "nosuid" option on the "/var/log/audit" directory.