CVE-2016-5410 Auth bypass in n/a

Medium 5.5 Published 19 Apr 2017 Updated 6 Aug 2024

Local users can bypass authentication to modify firewall configurations via D-Bus API methods in firewalld.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2016-5410?

CVE-2016-5410 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Linux Desktop, published on 19 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

firewalld.py in firewalld before 0.4.3.3 allows local users to bypass authentication and modify firewall configurations via the (1) addPassthrough, (2) removePassthrough, (3) addEntry, (4) removeEntry, or (5) setEntries D-Bus API method.

Weakness: CWE-287

Which versions are affected by CVE-2016-5410?

It affects 5 products.

Linux distribution packages (21)

`firewall-applet` Red Hat:enterprise_linux:7::client	All versions	`0:0.4.3.2-8.el7`
`firewall-config` Red Hat:enterprise_linux:7::client	All versions	`0:0.4.3.2-8.el7`
`firewalld` Red Hat:enterprise_linux:7::client	All versions	`0:0.4.3.2-8.el7`
`firewalld-filesystem` Red Hat:enterprise_linux:7::client	All versions	`0:0.4.3.2-8.el7`
`python-firewall` Red Hat:enterprise_linux:7::client	All versions	`0:0.4.3.2-8.el7`
`firewall-applet` Red Hat:enterprise_linux:7::computenode	All versions	`0:0.4.3.2-8.el7`
`firewall-config` Red Hat:enterprise_linux:7::computenode	All versions	`0:0.4.3.2-8.el7`
`firewalld` Red Hat:enterprise_linux:7::computenode	All versions	`0:0.4.3.2-8.el7`
`firewalld-filesystem` Red Hat:enterprise_linux:7::computenode	All versions	`0:0.4.3.2-8.el7`
`python-firewall` Red Hat:enterprise_linux:7::computenode	All versions	`0:0.4.3.2-8.el7`
`firewall-applet` Red Hat:enterprise_linux:7::server	All versions	`0:0.4.3.2-8.el7`
`firewall-config` Red Hat:enterprise_linux:7::server	All versions	`0:0.4.3.2-8.el7`
`firewalld` Red Hat:enterprise_linux:7::server	All versions	`0:0.4.3.2-8.el7`
`firewalld-filesystem` Red Hat:enterprise_linux:7::server	All versions	`0:0.4.3.2-8.el7`
`python-firewall` Red Hat:enterprise_linux:7::server	All versions	`0:0.4.3.2-8.el7`
`firewall-applet` Red Hat:enterprise_linux:7::workstation	All versions	`0:0.4.3.2-8.el7`
`firewall-config` Red Hat:enterprise_linux:7::workstation	All versions	`0:0.4.3.2-8.el7`
`firewalld` Red Hat:enterprise_linux:7::workstation	All versions	`0:0.4.3.2-8.el7`
`firewalld-filesystem` Red Hat:enterprise_linux:7::workstation	All versions	`0:0.4.3.2-8.el7`
`python-firewall` Red Hat:enterprise_linux:7::workstation	All versions	`0:0.4.3.2-8.el7`
`firewalld` openSUSE:Tumbleweed	All versions	`0.4.4.2-1.1`

Products include Firewalld Firewalld, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Hpc Node, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2016-5410?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2016-5410 being exploited?

There is no known exploitation of CVE-2016-5410 in the wild and no public exploit code.

CVE-2026-4948 Firewalld: firewalld: local unprivileged user can modify firewall state due to d-bus setter mis-authorization Medium 5.5

All Redhat Enterprise Linux Desktop vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-5410, GHSA-v2vf-88f9-4px7, RHSA-2016:2597, UBUNTU-CVE-2016-5410, openSUSE-SU-2024:10205-1.