CVE-2019-16675

Phoenix Contact Automationworx MWT File Parsing Out-Of-Bounds Read Remote Code Execution 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

An issue was discovered in PHOENIX CONTACT PC Worx through 1.86, PC Worx Express through 1.86, and Config+ through 1.86. A manipulated PC Worx or Config+ project file could lead to an Out-of-bounds Read and remote code execution. The attacker needs to get access to an original PC Worx or Config+ project to be able to manipulate data inside. After manipulation, the attacker needs to exchange the original files with the manipulated ones on the application programming workstation.

Se detectó un problema en PHOENIX CONTACT PC Worx versiones hasta 1.86, PC Worx Express versiones hasta 1.86 y Config+ versiones hasta 1.86. Un archivo de proyecto de PC Worx o Config+ manipulado podría conllevar a una lectura fuera de límites y a una ejecución de código remota. El atacante necesita conseguir acceso a un proyecto original de PC Worx o Config+ para poder manipular los datos en su interior. Luego de la manipulación, el atacante necesita intercambiar los archivos originales por los manipulados en la estación de trabajo de programación de aplicaciones.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Phoenix Contact Automationworx. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of MWT files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: 9sg Security Team

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

2019-09-21 CVE Reserved
2019-10-31 CVE Published
2024-08-05 CVE Updated
2024-10-24 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (4)

URL	Tag	Source
https://cert.vde.com/en-us/advisories	Third Party Advisory
https://www.us-cert.gov/ics/advisories/icsa-19-302-01	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-19-922	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-19-991	X_refsource_misc

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"		Config\+ Search vendor "Phoenixcontact" for product "Config\+"				<= 1.86 Search vendor "Phoenixcontact" for product "Config\+" and version " <= 1.86"		-		Affected
Phoenixcontact Search vendor "Phoenixcontact"		Pc Worx Search vendor "Phoenixcontact" for product "Pc Worx"				<= 1.86 Search vendor "Phoenixcontact" for product "Pc Worx" and version " <= 1.86"		-		Affected
Phoenixcontact Search vendor "Phoenixcontact"		Pc Worx Express Search vendor "Phoenixcontact" for product "Pc Worx Express"				<= 1.86 Search vendor "Phoenixcontact" for product "Pc Worx Express" and version " <= 1.86"		-		Affected