CVE-2020-2002

PAN-OS: Spoofed Kerberos key distribution center authentication bypass

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0.

Existe una vulnerabilidad de omisión de autenticación mediante suplantación de identidad en el daemon de autenticación y los componentes de ID de usuario de PAN-OS de Palo Alto Networks al no verificar la integridad del centro de distribución de claves (KDC) Kerberos antes de autenticar a los usuarios. Esto afecta a todas las formas de autenticación que usan un perfil de autenticación Kerberos. Un atacante de tipo intermediario con la capacidad de interceptar la comunicación entre PAN-OS y KDC puede iniciar sesión en PAN-OS como administrador. Este problema afecta: PAN-OS 7.1 versiones anteriores a la versión 7.1.26; PAN-OS 8.1 versiones anteriores a la versión 8.1.13; PAN-OS 9.0 versiones anteriores a la versión 9.0.6; Todas las versiones de PAN-OS 8.0.

*Credits: Palo Alto Networks would like to thank Yoav Iellin, Yaron Kassner, and Rotem Zach from Silverfort for discovering and reporting this issue.

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-04 CVE Reserved
2020-05-13 CVE Published
2023-03-07 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-290: Authentication Bypass by Spoofing

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.paloaltonetworks.com/CVE-2020-2002	2020-05-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 7.1.0 < 7.1.26 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 7.1.0 < 7.1.26"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 8.0.0 <= 8.0.20 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 8.0.0 <= 8.0.20"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 8.1.0 < 8.1.13 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 8.1.0 < 8.1.13"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 9.0.0 < 9.0.6 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 9.0.0 < 9.0.6"		-		Affected