Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-41185Unified Automation UaGateway Certificate Parsing Integer Overflow Denial-of-Service Vulnerability

High 8.6

In plain English

A high-severity integer overflow 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 0.8% (higher than 57% of all known vulnerabilities).

Severity (CVSS 3.0)8.6High

Exploit odds (30 days)0.8%top 42.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Unified Automation UaGateway Certificate Parsing Integer Overflow 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 not required to exploit this vulnerability. The specific flaw exists within the processing of client certificates. When parsing the certificate length field, the process does not properly validate user-supplied data, which can result in an integer overflow. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20353.

Affected products (as reported)

Vendor	Product	Versions
Unified Automation	UaGateway	1.5.12

Weakness: CWE-190 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References

ZDI-23-1286 x_research-advisory