(Pwn2Own) Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability
Vulnerability Details
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.
Additional Details
Unified Automation has issued an update to correct this vulnerability. More details can be found at:
https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt
Disclosure Timeline
- 2023-02-22 - Vulnerability reported to vendor
- 2023-05-31 - Coordinated public release of advisory
Credit
Axel '0vercl0k' Souchet of https://doar-e.github.io/
