The NFS anonymous UID and GID must be configured to values that have no permissions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-227919	GEN005820	SV-227919r603266_rule		Medium

Description
When an NFS server is configured to deny remote root access, a selected UID and GID are used to handle requests from the remote root user. The UID and GID should be chosen from the system to provide the appropriate level of non-privileged access.

STIG	Date
Solaris 10 X86 Security Technical Implementation Guide	2022-09-07

Details

Check Text ( C-30081r490168_chk )
Check if the anon option is set correctly for exported file systems. List exported file systems. # exportfs -v OR # more /etc/dfs/sharetab Each of the exported file systems should include an entry for the 'anon=' option set to -1 or an equivalent (60001, 60002, 65534, or 65535). If an appropriate 'anon=' setting is not present for an exported file system, this is a finding.

Fix Text (F-30069r490169_fix)
Edit /etc/dfs/dfstab and add the "anon=-1" option for exports lacking it. Re-export the filesystems.