CVE-2020-2039

PAN-OS: Management web interface denial-of-service (DoS) through unauthenticated file upload

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An uncontrolled resource consumption vulnerability in Palo Alto Networks PAN-OS allows for a remote unauthenticated user to upload temporary files through the management web interface that are not properly deleted after the request is finished. It is possible for an attacker to disrupt the availability of the management web interface by repeatedly uploading files until available disk space is exhausted. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.10; PAN-OS 9.1 versions earlier than PAN-OS 9.1.4; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

Una vulnerabilidad de consumo de recursos no controlado en Palo Alto Networks PAN-OS permite a un usuario remoto no autenticado cargar archivos temporales por medio de la interfaz web de administración que no son eliminados apropiadamente una vez finalizada la petición. Es posible que un atacante interrumpa la disponibilidad de la interfaz web de administración cargando archivos de forma repetida hasta que se agote el espacio disponible en disco. Este problema impacta a: Versiones PAN-OS 8.1 anteriores a PAN-OS 8.1.16; Versiones PAN-OS 9.0 anteriores a PAN-OS 9.0.10; Versiones PAN-OS 9.1 anteriores a PAN-OS 9.1.4; Versiones PAN-OS 10.0 anteriores a PAN-OS 10.0.1.

*Credits: Palo Alto Networks thanks Mikhail Klyuchnikov and Nikita Abramov of Positive Technologies for discovering and reporting this issue.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-04 CVE Reserved
2020-09-09 CVE Published
2023-09-13 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.paloaltonetworks.com/CVE-2020-2039	2020-09-15

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 < 8.1.16 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 8.1.0 < 8.1.16"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 9.0.0 < 9.0.10 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 9.0.0 < 9.0.10"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 9.1.0 < 9.1.4 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 9.1.0 < 9.1.4"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 10.0.0 < 10.0.1 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 10.0.0 < 10.0.1"		-		Affected