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APPL-26-002003 The macOS system must disable Network File System (NFS) service.

DISA STIG library V1R4
All changes in this version
first version loaded CAT II

Maps to AC-3 via CCI-000213

Title

The macOS system must disable Network File System (NFS) service.

Control

Verify the macOS system is configured to disable NFS service with the following commands: isDisabled=$(/sbin/nfsd status | /usr/bin/awk '/nfsd service/ {print $NF}') if [[ "$isDisabled" == "disabled" ]] && [[ -z $(/usr/bin/pgrep nfsd) ]]; then echo "pass" else echo "fail" fi If the result is not "pass", this is a finding.

Discussion

Support for NFS services is nonessential and, therefore, must be disabled. Enabling any service increases the attack surface for an intruder. By disabling unnecessary services, the attack surface is minimized.

Related controls

CCI-000213

Fix

Configure the macOS system to disable NFS service with the following commands: /bin/launchctl disable system/com.apple.nfsd /bin/rm -rf /etc/exports The system may need a restart for the update to take effect.