Description
The ufw package can be removed with the following command:
Rationale
Running iptables.persistent with ufw enabled may lead
to conflict and unexpected results.
Shell script
The following script can be run on the host to remediate the issue.
# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; then
# CAUTION: This remediation script will remove ufw
# from the system, and may remove any packages
# that depend on ufw. Execute this
# remediation AFTER testing on a non-production
# system!
DEBIAN\_FRONTEND=noninteractive apt-get remove -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 removed
package:
name: ufw
state: absent
when: ansible\_virtualization\_type not in ["docker", "lxc", "openvz", "podman", "container"]
tags:
- disable\_strategy
- low\_complexity
- low\_disruption
- medium\_severity
- no\_reboot\_needed
- package\_ufw\_removed
