CVE-2022-43516 Zabbix Agent installer adds “allow all TCP any any” firewall rule

Medium 6.5 Published Updated

The Zabbix agent installer creates an overly permissive Windows Firewall rule, allowing unrestricted incoming TCP connections to all programs and ports.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2022-43516?

CVE-2022-43516 is a medium-severity vulnerability in Zabbix Zabbix, published on 12 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A Firewall Rule which allows all incoming TCP connections to all programs from any source and to all ports is created in Windows Firewall after Zabbix agent installation (MSI)

Weakness: CWE-16

Which versions are affected by CVE-2022-43516?

It affects 2 products.

Products include Microsoft Windows Firewall, Zabbix Zabbix.

How do I fix CVE-2022-43516?

No fix has been published for CVE-2022-43516 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-43516 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-43516 exists.

Sources

Also known as GHSA-wpfh-pv35-c3gc.

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