Bug 1360135 – CVE-2016-5410 firewalld: Firewall configuration can be modified by any logged in user

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Bug 1360135 - (CVE-2016-5410) CVE-2016-5410 firewalld: Firewall configuration can be modified by any logged in user

Summary:	CVE-2016-5410 firewalld: Firewall configuration can be modified by any logged...

Status:	CLOSED ERRATA

Aliases:	CVE-2016-5410

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20160816,repor...
Keywords:	Security

Depends On:	1359296 1367381
Blocks:	1323912 1360139
	Show dependency tree / graph

Reported:	2016-07-26 02:04 EDT by Huzaifa S. Sidhpurwala
Modified:	2016-11-06 00:28 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:	firewalld 0.4.3.3
Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the way firewalld allowed certain firewall configurations to be modified by unauthenticated users. Any locally logged in user could use this flaw to tamper or change firewall settings.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-11-06 00:28:34 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2016:2597	normal	SHIPPED_LIVE	Moderate: firewalld security, bug fix, and enhancement update	2016-11-03 08:11:47 EDT

Groups: None (edit)

Description Huzaifa S. Sidhpurwala 2016-07-26 02:04:34 EDT

FirewallD provides dbus api for modification of configuration after user has been authenticated via polkit. This does not apply for 5 methods which can be called by any logged user using dbus api or firewall-cmd cli interface. Any predefined policy can be used, server or desktop.

list of concerned dbus methods in firewalld.py
addPassthrough
removePassthrough
addEntry
removeEntry
setEntries

Any locally logged in user, could use the above firewalld commands to tamper or change the firewall settings.

This flaw was introduced via the following commit:
https://github.com/t-woerner/firewalld/commit/6b9867cd5c5e2c83adeec42666521a420e59ef11

It affects all firewalld versions since 0.3.12

Comment 1 Huzaifa S. Sidhpurwala 2016-08-16 06:10:41 EDT

Created firewalld tracking bugs for this issue:

Affects: fedora-all [bug 1367381]

Comment 2 Huzaifa S. Sidhpurwala 2016-08-16 06:19:29 EDT

Public via:

http://seclists.org/oss-sec/2016/q3/291

Comment 3 Huzaifa S. Sidhpurwala 2016-08-16 23:17:19 EDT

This issue was fixed in firewalld-0.4.3.3 release:

http://www.firewalld.org/2016/08/firewalld-0-4-3-3-release/

Comment 8 errata-xmlrpc 2016-11-03 17:03:33 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2597 https://rhn.redhat.com/errata/RHSA-2016-2597.html

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