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Description
The ufw package can be installed with the following command:
Rationale
ufw controls the Linux kernel network packet filtering
code. ufw allows system operators to set up firewalls and IP
masquerading, etc.
Shell script
The following script can be run on the host to remediate the issue.
#!/bin/bash
# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; then
DEBIAN_FRONTEND=noninteractive apt-get install -y "ufw"
else
>&2 echo 'Remediation is not applicable, nothing was done'
fi
Ansible playbook
The following playbook can be run with Ansible to remediate the issue.
- name: Ensure ufw is installed
package:
name: ufw
state: present
when: ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
tags:
- DISA-STIG-UBTU-20-010433
- enable_strategy
- low_complexity
- low_disruption
- medium_severity
- no_reboot_needed
- package_ufw_installed
