CVE-2021-40872

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 issue was discovered in Softing Industrial Automation uaToolkit Embedded before 1.40. Remote attackers to cause a denial of service (DoS) or login as an anonymous user (bypassing security checks) by sending crafted messages to a OPC/UA server. The server process may crash unexpectedly because of an invalid type cast, and must be restarted.

Se ha detectado un problema en Softing Industrial Automation uaToolkit Embedded versiones anteriores a 1.40. Unos atacantes remotos pueden causar una denegación de servicio (DoS) o iniciar sesión como usuario anónimo (omitiendo las comprobaciones de seguridad) mediante el envío de mensajes diseñados a un servidor OPC/UA. El proceso del servidor puede bloquearse inesperadamente debido a un lanzamiento de tipo no válido, y debe reiniciarse

*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

2021-09-13 CVE Reserved
2021-11-10 CVE Published
2024-07-26 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://industrial.softing.com	2021-11-16
https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-40872.pdf	2021-11-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Softing Search vendor "Softing"		Smartlink Hw-dp Search vendor "Softing" for product "Smartlink Hw-dp"				<= 1.10 Search vendor "Softing" for product "Smartlink Hw-dp" and version " <= 1.10"		-		Affected
Softing Search vendor "Softing"		Uatoolkit Embedded Search vendor "Softing" for product "Uatoolkit Embedded"				< 1.40 Search vendor "Softing" for product "Uatoolkit Embedded" and version " < 1.40"		-		Affected