Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-32174Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability

Critical 9.1

In plain English

A critical-severity use-after-free in UaGateway from Unified Automation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 79% of all known vulnerabilities).

Severity (CVSS 3.0)9.1Critical

Exploit odds (30 days)1.9%top 20.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unified Automation UaGateway. Authentication is required to exploit this vulnerability when the product is in its default configuration. The specific flaw exists within the handling of NodeManagerOpcUa objects. 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 execute code in the context of SYSTEM. . Was ZDI-CAN-20577.

Affected products (as reported)

Vendor	Product	Versions
Unified Automation	UaGateway	UaGateway 1.5.13

Weakness: CWE-416 · Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

ZDI-23-780 x_research-advisory
vendor-provided URL vendor-advisory