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---
name: cis-ubuntu2004-v300-4-3-9
description: "Ensure nftables service is enabled"
category: cis-networking
version: "3.0.0"
author: cyberstrike-official
tags: [cis, ubuntu, linux, ubuntu-20.04, firewall, nftables]
cis_id: "4.3.9"
cis_benchmark: "CIS Ubuntu Linux 20.04 LTS Benchmark v3.0.0"
tech_stack: [ubuntu, linux]
cwe_ids: []
chains_with: []
prerequisites: []
severity_boost: {}
---
# CIS Ubuntu Linux 20.04 LTS Benchmark v3.0.0 - Control 4.3.9
## Profile
- **Level:** Level 1 - Server, Level 1 - Workstation
- **Assessment Status:** Automated
## Description
The nftables service allows for the loading of nftables rulesets during boot, or starting on the nftables service
## Rationale
The nftables service restores the nftables rules from the rules files referenced in the `/etc/nftables.conf` file during boot or the starting of the nftables service
## Audit Procedure
### Command Line
Run the following command and verify that the nftables service is enabled:
```bash
systemctl is-enabled nftables
```
## Expected Result
```
enabled
```
## Remediation
### Command Line
Run the following command to enable the nftables service:
```bash
systemctl enable nftables
```
## Default Value
Not applicable.
## References
1. NIST SP 800-53 Rev. 5: CA-9, SC-7
## CIS Controls
v8 - 4.4 Implement and Manage a Firewall on Servers
v8 - 4.5 Implement and Manage a Firewall on End-User Devices
v7 - 9.4 Apply Host-based Firewalls or Port Filtering
MITRE ATT&CK Mappings: T1562, T1562.004 | TA0011 | M1031, M1037
