CVE-2020-5802

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 attacker-controlled memory allocation size can be passed to the C++ new operator in RnaDaSvr.dll by sending a specially crafted ConfigureItems message to TCP port 4241. This will cause an unhandled exception, resulting in termination of RSLinxNG.exe. Observed in FactoryTalk 6.11. All versions of FactoryTalk Linx are affected.

Un tamaño de asignación de memoria controlado por el atacante puede ser pasado al nuevo operador de C++ en la biblioteca RnaDaSvr.dll mediante el envío de un mensaje ConfigureItems especialmente diseñado hacia el puerto TCP 4241. Esto causará una excepción no manejada, resultando en la terminación del archivo RSLinxNG.exe. Observado en FactoryTalk versión 6.11. Todas las versiones de FactoryTalk Linx están afectadas

*Credits: N/A

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

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

2020-01-06 CVE Reserved
2020-12-29 CVE Published
2023-12-18 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (1)

URL	Tag	Source
https://www.tenable.com/security/research/tra-2020-71	Third Party Advisory

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
Rockwellautomation Search vendor "Rockwellautomation"		Factorytalk Linx Search vendor "Rockwellautomation" for product "Factorytalk Linx"				<= 6.11 Search vendor "Rockwellautomation" for product "Factorytalk Linx" and version " <= 6.11"		-		Affected