| name | cis-ubuntu2004-v300-4-2-3 |
| description | Ensure iptables-persistent is not installed with ufw |
| category | cis-networking |
| version | 3.0.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","linux","ubuntu-20.04","firewall","ufw"] |
| cis_id | 4.2.3 |
| 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 4.2.3
Profile
- Level: Level 1 - Server, Level 1 - Workstation
- Assessment Status: Automated
Description
The iptables-persistent is a boot-time loader for netfilter rules, iptables plugin
Rationale
Running both ufw and the services included in the iptables-persistent package may lead to conflict
Audit Procedure
Command Line
Run the following command to verify that the iptables-persistent package is not installed:
dpkg-query -s iptables-persistent &>/dev/null && echo "iptables-persistent is installed"
Expected Result
Nothing should be returned
Remediation
Command Line
Run the following command to remove the iptables-persistent package:
apt purge iptables-persistent
Default Value
Not applicable.
References
- NIST SP 800-53 Rev. 5: 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 | TA0005 | M1033
