CVE-2022-30551

Prosys OPC UA SDK for Java OPC UA Messages Resource Exhaustion Denial-of-Service 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 Legacy Java Stack 2022-04-01 allows a remote attacker to cause a server to stop processing messages by sending crafted messages that exhaust available resources.

OPC UA Legacy Java Stack versión 01-04-2022, permite a un atacante remoto causar que un servidor deje de procesar mensajes mediante el envío de mensajes diseñados que agotan los recursos disponibles

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Prosys OPC UA SDK for Java. Authentication is not required to exploit this vulnerability.
The specific flaw exists within handling of OPC UA messages. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

*Credits: Vera Mens, Uri Katz, Sharon Brizinov of Claroty Research

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

2022-05-11 CVE Reserved
2022-05-20 CVE Published
2024-08-03 CVE Updated
2024-11-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (3)

URL	Tag	Source
https://github.com/OPCFoundation/UA-Java-Legacy	Product

URL	Date	SRC

URL	Date	SRC
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-30551.pdf	2022-06-01

URL	Date	SRC
https://opcfoundation.org	2022-06-01

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-java Search vendor "Opcfoundation" for product "Ua-java"				2022-04-01 Search vendor "Opcfoundation" for product "Ua-java" and version "2022-04-01"		-		Affected