CVE-2021-34597

Phoenix Contact: PC Worx/-Express prone to improper input validation vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper Input Validation vulnerability in PC Worx Automation Suite of Phoenix Contact up to version 1.88 could allow an attacker with a manipulated project file to unpack arbitrary files outside of the selected project directory.

Una vulnerabilidad de comprobación de entrada inapropiada en PC Worx Automation Suite de Phoenix Contact versiones hasta 1.88, podría permitir a un atacante con un archivo de proyecto manipulado desempaquetar archivos arbitrarios fuera del directorio del proyecto seleccionado

*Credits: The vulnerability was discovered by Jake Baines of Dragos Inc. We kindly appreciate the coordinated disclosure of these vulnerabilities by the finder., PHOENIX CONTACT thanks CERT@VDE for the coordination and support with this publication.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

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

2021-06-10 CVE Reserved
2021-11-04 CVE Published
2024-07-19 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (1)

URL	Tag	Source
https://cert.vde.com/en/advisories/VDE-2021-052	Mitigation

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Phoenixcontact Search vendor "Phoenixcontact"		Pc Worx Search vendor "Phoenixcontact" for product "Pc Worx"				<= 1.88 Search vendor "Phoenixcontact" for product "Pc Worx" and version " <= 1.88"		-		Affected
Phoenixcontact Search vendor "Phoenixcontact"		Pc Worx Express Search vendor "Phoenixcontact" for product "Pc Worx Express"				<= 1.88 Search vendor "Phoenixcontact" for product "Pc Worx Express" and version " <= 1.88"		-		Affected