Files executed through a mail aliases file must not have extended ACLs.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22441	GEN004430	SV-26691r1_rule	ECLP-1	Medium

Description
Excessive permissions on files executed through a mail alias file could result in modification by an unauthorized user, execution of malicious code, and/or system compromise.

STIG	Date
SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE	2015-10-01

Details

Check Text ( C-27709r1_chk )
Examine the contents of the /etc/mail/aliases file. For each file referenced, check the permissions of the file. # ls -lL [file referenced from aliases] If the permissions include a "+", the file has an extended ACL and this is a finding.

Fix Text (F-23932r1_fix)
Remove the extended ACL from the file. # getfacl [file referenced from aliases] Remove each ACE returned. # setfacl -d [ACE] [file referenced from aliases]