Palo Alto Networks PAN-OS 7.1.x < 7.1.26 / 8.0.x < 8.1.12 / 8.1.x < 8.1.12 / 9.0.x < 9.0.6 Vulnerability

critical Nessus Plugin ID 136814


The remote PAN-OS host is affected by vulnerability


The version of Palo Alto Networks PAN-OS running on the remote host is 7.1.x prior to 7.1.26 or 8.0.x prior to 8.1.12 or 8.1.x prior to 8.1.12 or 9.0.x prior to 9.0.6. It is, therefore, affected by a vulnerability.

- 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 Firewalls 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. (CVE-2020-2018)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade to PAN-OS 7.1.26 / 8.1.12 / 8.1.12 / 9.0.6 or later

See Also

Plugin Details

Severity: Critical

ID: 136814

File Name: palo_alto_CVE-2020-2018.nasl

Version: 1.3

Type: combined

Published: 5/22/2020

Updated: 10/13/2020

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 6.5


Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2020-2018


Risk Factor: Critical

Base Score: 9

Temporal Score: 7.8

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:paloaltonetworks:pan-os

Required KB Items: Host/Palo_Alto/Firewall/Version, Host/Palo_Alto/Firewall/Full_Version, Host/Palo_Alto/Firewall/Source

Exploit Ease: No known exploits are available

Patch Publication Date: 5/13/2020

Vulnerability Publication Date: 5/13/2020

Reference Information

CVE: CVE-2020-2018

CWE: 287

IAVA: 2020-A-0222-S