The NFS exports configuration file must not have an extended ACL.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-38823r1_rule The NFS exports configuration file must not have an extended ACL.

Vulnerability discussion

File system extended ACLs provide access to files beyond what is allowed by the mode numbers of the files. Excessive permissions on the NFS export configuration file could allow unauthorized modification of the file, which could result in Denial of Service to authorized NFS exports and the creation of additional unauthorized exports.

Check content

# aclget /etc/exports If the extended attributes are not disabled, this is a finding.

Fix text

Remove the extended ACL from the NFS export configuration file and change extended attributes to disabled. #acledit /etc/exports

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