STIGQter: STIG Summary: Oracle Linux 7 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The Oracle Linux operating system must enable an application firewall, if available.

DISA Rule

SV-221868r603260_rule

Vulnerability Number

V-221868

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL07-00-040520

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Ensure the operating system's application firewall is enabled.

Install the "firewalld" package, if it is not on the system, with the following command:

# yum install firewalld

Start the firewall via "systemctl" with the following command:

# systemctl start firewalld

Check Contents

Verify the operating system enabled an application firewall.

Check to see if "firewalld" is installed with the following command:

# yum list installed firewalld
firewalld-0.3.9-11.el7.noarch.rpm

If the "firewalld" package is not installed, ask the System Administrator if another firewall application (such as iptables) is installed.

If an application firewall is not installed, this is a finding.

Check to see if the firewall is loaded and active with the following command:

# systemctl status firewalld
firewalld.service - firewalld - dynamic firewall daemon

Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled)
Active: active (running) since Tue 2014-06-17 11:14:49 CEST; 5 days ago

If "firewalld" does not show a status of "loaded" and "active", this is a finding.

Check the state of the firewall:

# firewall-cmd --state
running

If "firewalld" does not show a state of "running", this is a finding.

Vulnerability Number

V-221868

Documentable

False

Rule Version

OL07-00-040520

Severity Override Guidance

Verify the operating system enabled an application firewall.

Check to see if "firewalld" is installed with the following command:

# yum list installed firewalld
firewalld-0.3.9-11.el7.noarch.rpm

If the "firewalld" package is not installed, ask the System Administrator if another firewall application (such as iptables) is installed.

If an application firewall is not installed, this is a finding.

Check to see if the firewall is loaded and active with the following command:

# systemctl status firewalld
firewalld.service - firewalld - dynamic firewall daemon

Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled)
Active: active (running) since Tue 2014-06-17 11:14:49 CEST; 5 days ago

If "firewalld" does not show a status of "loaded" and "active", this is a finding.

Check the state of the firewall:

# firewall-cmd --state
running

If "firewalld" does not show a state of "running", this is a finding.

Check Content Reference

M

Target Key

4089

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