Puppet Firewall Module May Leave Unmanaged Rules

published 2022-03-02 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15761

cvss: 5.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

In certain situations it is possible for an unmanaged rule to exist on the target system that has the same comment as the rule specified in the manifest. This could allow for unmanaged rules to exist on the target system and leave the system in an unsafe state.

Patch / fix

fixed in 1 distros 2

Puppet Firewall Module 3.4.0

debian red hat

puppet-module-puppetlabs-firewall Debian 14, Debian 13, Debian 12 3.4.0-1

debian advisories DEBIAN-CVE-2022-0675

puppet-firewall openstack 16.2, openstack 16.1 3.4.0-1.94f707cgit.el8ost

red hat advisories RHSA-2022:8869 RHSA-2022:5116

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-0675 updated 2025-11-21 cvss 9.8

puppetlabs-firewall: unmanaged rules could leave system in an unsafe state via duplicate comment

Red Hat OpenStack Platform 13 (Queens) puppet-firewall
affected: no fix available
Red Hat OpenStack Platform 16.1 puppet-firewall 3.4.0-1.94f707cgit.el8ost
fixed: vendor fix RHSA-2022:8869
Red Hat OpenStack Platform 16.2 puppet-firewall 3.4.0-1.94f707cgit.el8ost
fixed: vendor fix RHSA-2022:5116

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

Puppet Firewall Module

Classification

Weakness

CWE-1289 Improper Validation of Unsafe Equivalence in Input
CWE-20 Improper Input Validation

References

puppet.com /security/cve/CVE-2022-0675
vendor-advisory

Sources

CVE List CVE-2022-0675
NVD CVE-2022-0675

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary