CVE-2021-3063

PAN-OS: Denial-of-Service (DoS) Vulnerability in GlobalProtect Portal and Gateway Interfaces

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.

Se presenta una vulnerabilidad de administración inapropiada de condiciones excepcionales en las interfaces de portal y puerta de enlace de Palo Alto Networks GlobalProtect que permite a un atacante no autenticado basado en la red enviar tráfico específicamente diseñado a una interfaz de GlobalProtect que cause que el servicio deje de responder. Los intentos repetidos de enviar esta petición resulta en una denegación de servicio a todos los servicios de PAN-OS, reiniciando el dispositivo y poniéndolo en modo de mantenimiento. Este problema afecta a: PAN-OS versiones 8.1 anteriores a PAN-OS 8.1.21; PAN-OS versiones 9.0 anteriores a PAN-OS 9.0.14-h4; PAN-OS versiones 9.1 anteriores a PAN-OS 9.1.11-h3; PAN-OS versiones 10.0 anteriores a PAN-OS 10.0.8-h4; PAN-OS versiones 10.1 anteriores a PAN-OS 10.1.3. Los clientes de Prisma Access no están afectados por este problema

*Credits: This issue was found by Nicholas Newsom of Palo Alto Networks during internal security review.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-06 CVE Reserved
2021-11-10 CVE Published
2024-07-26 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-755: Improper Handling of Exceptional Conditions

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.paloaltonetworks.com/CVE-2021-3063	2021-11-15

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"				>= 8.1.0 < 8.1.21 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 8.1.0 < 8.1.21"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 9.0.0 <= 9.0.14 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 9.0.0 <= 9.0.14"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 9.1.0 <= 9.1.11 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 9.1.0 <= 9.1.11"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 10.0.0 <= 10.0.8 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 10.0.0 <= 10.0.8"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 10.1.0 < 10.1.3 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 10.1.0 < 10.1.3"		-		Affected