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Change History

https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt

https://www.zerodayinitiative.com/advisories/ZDI-23-777/

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

Zero Day Initiative AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Zero Day Initiative CWE-416

Zero Day Initiative https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt [No types assigned]

Zero Day Initiative https://www.zerodayinitiative.com/advisories/ZDI-23-777/ [No types assigned]