Executive Summary

Summary
Title Firewalld: Improper authentication methods
Informations
Name GLSA-201701-70 First vendor Publication 2017-01-29
Vendor Gentoo Last vendor Modification 2017-01-29
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in Firewalld allows firewall configurations to be modified by unauthenticated users.

Background

Firewalld provides a dynamically managed firewall with support for network/firewall zones to define the trust level of network connections or interfaces.

Description

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.

Resolution

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

References

[ 1 ] CVE-2016-5410 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-5410

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/201701-70

Original Source

Url : http://security.gentoo.org/glsa/glsa-201701-70.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-287 Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1
Os 1
Os 1
Os 1

Nessus® Vulnerability Scanner

Date Description
2017-01-30 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201701-70.nasl - Type : ACT_GATHER_INFO
2016-12-15 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20161103_firewalld_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2016-11-28 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2016-2597.nasl - Type : ACT_GATHER_INFO
2016-11-15 Name : The remote Fedora host is missing a security update.
File : fedora_2016-4dedc6ec3d.nasl - Type : ACT_GATHER_INFO
2016-11-11 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-2597.nasl - Type : ACT_GATHER_INFO
2016-11-04 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-2597.nasl - Type : ACT_GATHER_INFO
2016-08-22 Name : The remote Fedora host is missing a security update.
File : fedora_2016-de55d2c2c9.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2017-04-25 21:25:25
  • Multiple Updates
2017-04-19 21:25:00
  • Multiple Updates
2017-01-31 13:26:20
  • Multiple Updates
2017-01-29 21:23:33
  • First insertion