OL 8 file systems must not execute binary files on removable media.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-248622	OL08-00-010610	SV-248622r991589_rule		Medium

Description

The "noexec" mount option causes the system not to 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 unprivileged users to attain unauthorized administrative access.

STIG	Date
Oracle Linux 8 Security Technical Implementation Guide	2024-12-03

Details

Check Text (C-52056r779430_chk)

Verify that file systems used for removable media are mounted with the "noexec" option with the following command:

$ sudo more /etc/fstab

UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid,nodev,noexec 0 0

If a file system found in "/etc/fstab" refers to removable media and it does not have the "noexec" option set, this is a finding.

Fix Text (F-52010r779431_fix)

Configure the "/etc/fstab" to use the "noexec" option on file systems that are associated with removable media.