CVE-2020-2018

An authentication bypass vulnerability in Palo Alto Networks PAN-OS Panorama proxy service allows an unauthenticated user with network access to Panorama and the knowledge of the Firewall’s serial number to register the PAN-OS firewall to register the device. After the PAN-OS device is registered, the user can further compromise the PAN-OS instances managed by Panorama.
This issue affects:

PAN-OS 7.1 versions earlier than 7.1.26;

PAN-OS 8.0 versions earlier than 8.0.21;

PAN-OS 8.1 versions earlier than 8.1.12;

PAN-OS 9.0 versions earlier than 9.0.6.

Source: CVE-2020-2018