DISA STIGS Viewer

OL 9 must mount /var/log with the noexec option.

Overview

Finding ID Version Rule ID IA Controls Severity
V-271658 OL09-00-002062 SV-271658r1091686_rule   Medium
Description
The "noexec" mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files, as they may be incompatible. Executing files from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access.
STIG Date
Oracle Linux 9 Security Technical Implementation Guide 2025-05-08

Details

Check Text (C-75708r1091684_chk)
Verify that OL 9 is configured to mount /var/log with the noexec option.

Verify "/var/log" is mounted with the "noexec" option:

$ mount | grep /var/log
/dev/mapper/ol-var-log on /var/log type xfs (rw,nodev,nosuid,noexec,seclabel)

If the "/var/log" file system is mounted without the "noexec" option, this is a finding.
Fix Text (F-75615r1091685_fix)
Configure OL 9 to mount /var/log with the noexec option.

Modify "/etc/fstab" to use the "noexec" option on the "/var/log" directory.