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CVE-2023-32170

Published: May 3, 2024Updated: Aug 8, 2025 Sources: CVE List NVD BDUCWE-20
6.5MEDIUM
NVD MITRE
EPSS Score
0.6%
Top 55.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. User interaction is required to exploit this vulnerability in that the target must choose to accept a client certificate. The specific flaw exists within the processing of client certificates. The issue results from the lack of proper validation of certificate data. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20494.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20

Affected Products

unified-automation
commercialaka .net based opc ua client/server sdk, opc ua c\+\+ demo server, opc ua c++ demo server
uagatewayLibrary
OSS Libraries / generic-library
Unified Automation GmbH
commercialaka uagateway, unified automation .net
UaGatewayOn-prem
ICS / OT / IoT / industrial-network
Unified Automation
commercialaka unifiedautomation.com, unified automation uagateway
UaGatewayOn-prem
ICS / OT / IoT / industrial-network

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt
documentation.unified-automation.com
https://www.zerodayinitiative.com/advisories/ZDI-23-775/
zerodayinitiative.com
https://www.zerodayinitiative.com/advisories/ZDI-23-775/
zerodayinitiative.com
and 2 more references View all →

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