The NFS anonymous UID and GID must be configured to values without permissions.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECSC-1

Associated with: CCI-000062

SV-38956r1_rule The NFS anonymous UID and GID must be configured to values without permissions.

Vulnerability discussion

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.

Check content

Check if the anon option is set correctly for exported file systems. List exported file systems. # exportfs -v 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

Edit /etc/exports and set the anon=-1 option for exported file systems without it. Re-export the file systems. # exportfs -a

Pro Tips

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You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.