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V-248625

CAT II (Medium)

OL 8 file systems must not interpret character or block special devices that are imported via Network File System (NFS).

Rule ID

SV-248625r1156665_rule

STIG

Oracle Linux 8 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-000366

Discussion

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 nonprivileged users to attain unauthorized administrative access.

Check Content

Note: If no NFS mounts are configured, this requirement is Not Applicable.

Verify 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

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