CVE-2022-29865

OPC Foundation UA .NET Standard Improper Input Validation Authentication Bypass Vulnerability

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

OPC UA .NET Standard Stack allows a remote attacker to bypass the application authentication check via crafted fake credentials.

OPC UA .NET Standard Stack permite a un atacante remoto eludir la comprobación de autenticación de la aplicación por medio de credenciales falsas diseñadas

This vulnerability allows remote attackers to bypass authentication on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of certificates. The issue results from the lack of proper validation of a user-supplied certificate. An attacker can leverage this vulnerability to bypass authentication on the system.

*Credits: Daan Keuper & Thijs Alkemade from Computest

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-04-27 CVE Reserved
2022-06-16 CVE Published
2024-08-03 CVE Updated
2024-08-23 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29865.pdf	2022-06-27

URL	Date	SRC
https://opcfoundation.org/security	2022-06-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opcfoundation Search vendor "Opcfoundation"		Ua .net Standard Stack Search vendor "Opcfoundation" for product "Ua .net Standard Stack"				< 1.4.368.58 Search vendor "Opcfoundation" for product "Ua .net Standard Stack" and version " < 1.4.368.58"		-		Affected