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V-252480

CAT II (Medium)

The macOS system must be configured to disable the Network File System (NFS) daemon unless it is required.

Rule ID

SV-252480r958478_rule

STIG

Apple macOS 12 (Monterey) Security Technical Implementation Guide

Version

V1R9

CCIs

CCI-000381

Discussion

If the system does not require access to NFS file shares or is not acting as an NFS server, support for NFS is non-essential and NFS services must be disabled. NFS is a network file system protocol supported by UNIX-like operating systems. Enabling any service increases the attack surface for an intruder. By disabling unnecessary services, the attack surface is minimized.

Check Content

If the NFS daemon is required, this is not applicable.

To check if the NFS daemon is disabled, use the following command:
/bin/launchctl print-disabled system | /usr/bin/grep com.apple.nfsd

If the results do not show the following, this is a finding:

"com.apple.nfsd" => true

Fix Text

To disable the NFS daemon, run the following command:

/usr/bin/sudo /bin/launchctl disable system/com.apple.nfsd

The system may need to be restarted for the update to take effect.