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1.1.2.6.4 Ensure noexec option set on /var/log partition

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Information

The noexec mount option specifies that the filesystem cannot contain executable binaries.

Since the /var/log filesystem is only intended for log files, set this option to ensure that users cannot run executable binaries from /var/log.

Solution

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

Edit the /etc/fstab file and add noexec 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

See Also

https://workbench.cisecurity.org/benchmarks/18209

Item Details

References: CSCv7|14.6

Plugin: Unix

Control ID: 13ec891d25bda840bfe2c6ac875c7615e2e23f262cfb1aa7bf9da623bb1cff4b