Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability

Vulnerability Description

Unified Automation UaGateway OPC UA Server Null Pointer Dereference 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 ImportCsv method. A crafted XML payload can cause a null pointer dereference. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20495.

References

• https://www.zerodayinitiative.com/advisories/ZDI-23-776/
• https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt