CVE-2023-32172

Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. Authentication is required to exploit this vulnerability. The specific flaw exists within the implementation of the ImportXML function. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20497.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-777/	Third Party Advisory
https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-777/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:unified-automation:uagateway:*:*:*:*:*:*:*:*

History

08 Aug 2025, 14:17

Type	Values Removed	Values Added
First Time		Unified-automation Unified-automation uagateway
CPE		cpe:2.3:a:unified-automation:uagateway::::::::
References	~~() https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt -~~	() https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt - Release Notes
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-23-777/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-23-777/ - Third Party Advisory

Information

Published : 2024-05-03 02:15

Updated : 2025-08-08 14:17

NVD link : CVE-2023-32172

Mitre link : CVE-2023-32172

CVE.ORG link : CVE-2023-32172

JSON object : View

Products Affected

unified-automation

uagateway

CWE

CWE-416

Use After Free

{"id": "CVE-2023-32172", "cveTags": [], "metrics": {"cvssMetricV30": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2024-05-03T02:15:22.773", "references": [{"url": "https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt", "tags": ["Release Notes"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-777/", "tags": ["Third Party Advisory"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-777/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. Authentication is required to exploit this vulnerability.\n\nThe specific flaw exists within the implementation of the ImportXML function. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20497."}, {"lang": "es", "value": "Vulnerabilidad de denegaci\u00f3n de servicio de Use-After-Free del servidor UaGateway OPC UA de Unified Automation. Esta vulnerabilidad permite a atacantes remotos crear una condici\u00f3n de denegaci\u00f3n de servicio en las instalaciones afectadas de Unified Automation UaGateway. Se requiere autenticaci\u00f3n para aprovechar esta vulnerabilidad. La falla espec\u00edfica existe en la implementaci\u00f3n de la funci\u00f3n ImportXML. El problema surge de la falta de validaci\u00f3n de la existencia de un objeto antes de realizar operaciones sobre \u00e9l. Un atacante puede aprovechar esta vulnerabilidad para crear una condici\u00f3n de denegaci\u00f3n de servicio en el sistema. Era ZDI-CAN-20497."}], "lastModified": "2025-08-08T14:17:00.330", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:unified-automation:uagateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0198D9C1-4354-4611-A3F3-16059270B375", "versionEndExcluding": "1.5.13.487"}], "operator": "OR"}]}], "sourceIdentifier": "zdi-disclosures@trendmicro.com"}