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1.1.2.6.2 Ensure nodev option set on /var/log partition

Information

The nodev mount option specifies that the filesystem cannot contain special devices.

Since the /var/log filesystem is not intended to support devices, set this option to ensure that users cannot create a block or character special devices in /var/log.

Solution

- IF - a separate partition exists for /var/log.

Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /var/log partition.

Example:

<device> /var/log <fstype> defaults,rw,nosuid,nodev,noexec,relatime 0 0

Run the following command to remount /var/log with the configured options:

# mount -o remount /var/log

Impact:

Setting the nodev option prevents device files from being interpreted on the /var/log filesystem, which is not expected to contain device files; this typically has no operational impact.

See Also

https://workbench.cisecurity.org/benchmarks/27892

Item Details

Category: ACCESS CONTROL, CONFIGURATION MANAGEMENT, MEDIA PROTECTION

References: 800-53|AC-3, 800-53|AC-5, 800-53|AC-6, 800-53|CM-7(2), 800-53|MP-2, CSCv7|14.6

Plugin: Unix

Control ID: 65da255b865e1177580c7460b123672abe10abcffd62b37d330953c23f13e29f