OL 8 file systems must not interpret character or block special devices that are imported via NFS.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-248625	OL08-00-010640	SV-248625r991589_rule		Medium

Description

The "nodev" mount option causes the system to not interpret character or block special devices. Executing character or block special devices 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-52059r779439_chk)

Verify that file systems being imported via NFS are mounted with the "nodev" option with the following command:

$ sudo grep nfs /etc/fstab | grep nodev

UUID=e06097bb-cfcd-437b-9e4d-a691f5662a7d /store nfs rw,nosuid,nodev,noexec 0 0

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

Fix Text (F-52013r779440_fix)

Configure the "/etc/fstab" to use the "nodev" option on file systems that are being imported via NFS.