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

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000366

SV-63455r1_rule Removable media, remote file systems, and any file system not containing approved device files must be mounted with the nodev option.

Vulnerability discussion

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.

Check content

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

Edit /etc/fstab and add the "nodev" option to any filesystems mounted from removable media or network shares.

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