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


Finding ID Version Rule ID IA Controls Severity
V-248625 OL08-00-010640 SV-248625r779441_rule Medium
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.
Oracle Linux 8 Security Technical Implementation Guide 2022-12-06


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.