CVE-2020-2011 PAN-OS: Panorama registration denial of service

High 7.5 Published 13 May 2020 Updated 16 Sep 2024

Remote unauthenticated attackers can crash the configuration service and force Panorama into maintenance mode via crafted registration requests.

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-2020-2011?

CVE-2020-2011 is a high-severity denial of service vulnerability in Paloaltonetworks Pan-Os, published on 13 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An improper input validation vulnerability in the configuration daemon of Palo Alto Networks PAN-OS Panorama allows for a remote unauthenticated user to send a specifically crafted registration request to the device that causes the configuration service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS Panorama services by restarting the device and putting it into maintenance mode. This issue affects: All versions of PAN-OS 7.1, PAN-OS 8.0; PAN-OS 8.1 versions earlier than 8.1.14; PAN-OS 9.0 versions earlier than 9.0.7; PAN-OS 9.1 versions earlier than 9.1.0.

Weakness: CWE-20

Which versions are affected by CVE-2020-2011?

It affects 1 product.

Products include Paloaltonetworks Pan-Os.

How do I fix CVE-2020-2011?

No fix has been published for CVE-2020-2011 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-2011 being exploited?

There is no known exploitation of CVE-2020-2011 in the wild and no public exploit code.

All Paloaltonetworks Pan-Os vulnerabilities

Sources

Also known as GHSA-hvgf-279c-6rmq.