Removable media, remote file systems, and any file system not containing approved device files must be mounted with the nodev option.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22368	GEN002430	SV-63455r1_rule		Medium

Description
The "nodev" (or equivalent) mount option causes the system to not handle device files as system devices. This option must be used for mounting any file system not containing approved device files. Device files can provide direct access to system hardware and can compromise security if not protected.

STIG	Date
Oracle Linux 5 Security Technical Implementation Guide	2020-02-25

Details

Check Text ( C-52157r1_chk )
Check /etc/mtab and verify the "nodev" mount option is used on any filesystems mounted from removable media or network shares. If any filesystem mounted from removable media or network shares does not have this option, this is a finding.

Fix Text (F-54061r1_fix)
Edit /etc/fstab and add the "nodev" option to any filesystems mounted from removable media or network shares.