GLSA-201701-70 : Firewalld: Improper authentication methods

medium Nessus Plugin ID 96856

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201701-70 (Firewalld: Improper authentication methods)

A flaw in Firewalld allows any locally logged in user to tamper with or change firewall settings. This is due to how Firewalld handles authentication via polkit which is not properly applied to 5 particular functions to include: addPassthrough, removePassthrough, addEntry, removeEntry, and setEntries.
Impact :

A local attacker could tamper or change firewall settings leading to the additional exposure of systems to include unauthorized remote access.
Workaround :

There is no known workaround at this time.

Solution

All Firewalld users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-firewall/firewalld-0.4.3.3'

Plugin Details

Severity: Medium

ID: 96856

File Name: gentoo_GLSA-201701-70.nasl

Version: 3.4

Type: local

Family: Gentoo Local Security Checks

Published: 1/30/2017

Updated: 1/11/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:firewalld, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 1/29/2017

Reference Information

CVE: CVE-2016-5410

GLSA: 201701-70

Detections

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