The hosts.lpd file (or equivalent) must not contain a + character.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-827	GEN003900	SV-37447r2_rule		Medium

Description
Having the '+' character in the hosts.lpd (or equivalent) file allows all hosts to use local system print resources.

STIG	Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide	2017-03-01

Details

Check Text ( C-36119r2_chk )
RHEL uses "cups" print service. Verify remote host access is limited. Procedure: # grep -i Listen /etc/cups/cupsd.conf The /etc/cups/cupsd.conf file must not contain a Listen *: or equivalent line. If the network address of the "Listen" line is unrestricted, this is a finding. # grep -i "Allow From" /etc/cups/cupsd.conf The "Allow From" line within the "" element should limit access to the printers to @LOCAL and specific hosts. If the "Allow From" line contains "All" this is a finding

Check Text ( C-36119r2_chk )

RHEL uses "cups" print service. Verify remote host access is limited.

Procedure:
# grep -i Listen /etc/cups/cupsd.conf
The /etc/cups/cupsd.conf file must not contain a Listen *: or equivalent line.
If the network address of the "Listen" line is unrestricted, this is a finding.

# grep -i "Allow From" /etc/cups/cupsd.conf
The "Allow From" line within the "" element should limit access to the printers to @LOCAL and specific hosts.
If the "Allow From" line contains "All" this is a finding

Fix Text (F-31365r1_fix)
Configure cups to use only the localhost or specified remote hosts. Procedure: Modify the /etc/cups/cupsd.conf file to "Listen" only to the local machine or a known set of hosts (i.e., Listen localhost:631). Modify the /etc/cups/cupsd.conf file "" element to "Deny From All" and "Allow from 127.0.0.1" or allowed host addresses. Restart cups: # service cups restart