Samba must be configured to not allow guest access to shares.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22501	GEN006235	SV-26832r2_rule		Medium

Description
Guest access to shares permits anonymous access and is not permitted.

STIG	Date
VMware ESX 3 Server	2016-05-13

Details

Check Text ( C-27815r3_chk )
Check the encryption setting for the Samba configuration. 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: # grep -i 'guest ok' /etc/smb.conf /etc/sfw/smb.conf /etc/samba/smb.conf /etc/sfw/samba/smb.conf If the setting exists and is set to yes, this is a finding.

Check Text ( C-27815r3_chk )

Check the encryption setting for the Samba configuration. 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:

# grep -i 'guest ok' /etc/smb.conf /etc/sfw/smb.conf /etc/samba/smb.conf /etc/sfw/samba/smb.conf

If the setting exists and is set to yes, this is a finding.

Fix Text (F-24075r2_fix)
Edit the /etc/smb.conf file and change the guest ok setting to no.