Linux distributions
TMA-ROCKY8-1.1.2.6.3
Ensure nosuid option set on /var/log partition
MediumLevel 1Automatedlinux
Description
The nosuid mount option specifies that the filesystem cannot contain setuid files.
How it is checked
Audit method: Shell command
shell
if ! findmnt -kn /var/log >/dev/null 2>&1; then echo compliant; elif findmnt -kn /var/log | grep -qw -- nosuid; then echo compliant; else echo /var/log' is mounted without nosuid'; fi- Expected output
compliant
How it is fixed
Fix method: Guidance or infrastructure patch
- IF - a separate partition exists for /var/log. Edit the /etc/fstab file and add nosuid 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
Properties
- Operating systems
- rocky-8
- Tags
- cis-convertedfilesystemlinux
- Reference
- CIS Rocky Linux 8 Benchmark v3.0.0 - 1.1.2.6.3
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
shell
tmaegis scan --target linux