CVE-2021-3054

PAN-OS: Unsigned Code Execution During Plugin Installation Race Condition Vulnerability

Severity Score

6.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access.

Una vulnerabilidad de condición de carrera de tiempo de comprobación a tiempo de uso (TOCTOU) en la interfaz web de Palo Alto Networks PAN-OS permite a un administrador autenticado con permiso para cargar plugins ejecutar código arbitrario con privilegios de usuario root. Este problema afecta a: PAN-OS versión 8.1 anteriores a PAN-OS 8.1.20; PAN-OS versión 9.0 anteriores a PAN-OS 9.0.14; PAN-OS versión 9.1 anteriores a PAN-OS 9.1.11; PAN-OS versión 10.0 anteriores a PAN-OS 10.0.7; PAN-OS versión 10.1 anteriores a PAN-OS 10.1.2. Este problema no afecta a Prisma Access

*Credits: Palo Alto Networks thanks Praetorian for discovering and reporting this issue.

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-06 CVE Reserved
2021-09-08 CVE Published
2023-04-01 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.paloaltonetworks.com/CVE-2021-3054	2021-09-15

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 < 8.1.20 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 8.1.0 < 8.1.20"		-		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 < 10.0.7 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 10.0.0 < 10.0.7"		-		Affected
Paloaltonetworks Search vendor "Paloaltonetworks"		Pan-os Search vendor "Paloaltonetworks" for product "Pan-os"				>= 10.1.0 < 10.1.2 Search vendor "Paloaltonetworks" for product "Pan-os" and version " >= 10.1.0 < 10.1.2"		-		Affected