Use After Free in Unified Automation Uagateway
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.
Vulnerability class: Use-After-Free
EPSS: 0.014 (69.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Unified Automation Uagateway — versions 1.5.12.482
- Unified-automation Uagateway
Weakness classification (CWE)
Public proof-of-concept exploits
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
- zdi-disclosures@trendmicro.com (vendor-advisory, Release Notes)
Frequently asked questions
- What is CVE-2023-32172?
- CVE-2023-32172 is a medium-severity vulnerability in Unified Automation Uagateway, classified under Use After Free. CVSS score: 6.5/10. Published 2024-05-03.
- How severe is CVE-2023-32172?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-32172 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.