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The smb.conf file must be group-owned by root, bin, or sys.


Overview

Finding ID Version Rule ID IA Controls Severity
V-1056 GEN006120 SV-39890r3_rule Medium
Description
If the group owner of the smb.conf file is not root or a system group, the file may be maliciously modified and the Samba configuration could be compromised.
STIG Date
SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE 2018-04-10

Details

Check Text ( C-38910r4_chk )
Check the group ownership of the smb.conf file. Default locations for this file include /etc, /etc/sfw, /etc/samba, and /etc/sfw/samba. If the system has Samba installed in non-standard locations, also check the smb.conf in those locations.

Procedure:

# ls -l /etc/smb.conf /etc/sfw/smb.conf /etc/samba/smb.conf /etc/sfw/samba/smb.conf

If an smb.conf file is not group-owned by root, bin, or sys, this is a finding.
Fix Text (F-34290r4_fix)
Change the group owner of the smb.conf file.

Procedure:

# chgrp root /etc/smb.conf /etc/sfw/smb.conf /etc/samba/smb.conf /etc/sfw/samba/smb.conf