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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-227009	GEN005770	SV-227009r603265_rule		Low

Description
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.

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

Details

Check Text ( C-29171r485372_chk )
Check the group ownership of the NFS export configuration file. # ls -lL /etc/dfs/dfstab If the permissions include a "+", the file has an extended ACL and this is a finding.

Fix Text (F-29159r485373_fix)
Remove the extended ACL from the file. # chmod A- /etc/dfs/dfstab