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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22493	GEN005770	SV-26817r1_rule	ECLP-1	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
HP-UX 11.23 Security Technical Implementation Guide	2015-12-02

Details

Check Text ( C-35032r2_chk )
Check the mode of the NFS export configuration file. # echo `ls -lL /etc/dfs/dfstab` | sed -e 's/^[ \t]*//' | tr '\011' ' ' | tr -s ' ' | cut -f 1,1 -d " " If the permissions include a + the file has an extended ACL, this is a finding.

Fix Text (F-24060r2_fix)
Remove the optional ACL from the file. # chacl -z /etc/dfs/dfstab