CVE-2022-33916

OPC Foundation UA .NET Standard BrowseRequest Missing Authentication Information Disclosure 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 Reference Server 1.04.368 allows a remote attacker to cause the application to access sensitive information.

OPC UA .NET Standard Reference Server versión 1.04.368, permite a un atacante remoto causar que la aplicación acceda a información confidencial.

This vulnerability allows remote attackers to disclose sensitive information 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 OPC UA BrowseRequests. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to disclose information in the context of the service.

*Credits: Uri Katz of Claroty Research

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-06-17 CVE Reserved
2022-08-05 CVE Published
2024-08-03 CVE Updated
2024-09-18 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-33916.pdf	2022-08-25

URL	Date	SRC
https://opcfoundation.org	2022-08-25

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"				1.04.368 Search vendor "Opcfoundation" for product "Ua .net Standard Stack" and version "1.04.368"		-		Affected