Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-39463Triangle MicroWorks SCADA Data Gateway Trusted Certification Unrestricted Upload of File Remote Code Execution Vulnerability

High 7.2

In plain English

A high-severity unrestricted file upload in SCADA Data Gateway from Triangle MicroWorks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).

Severity (CVSS 3.0)7.2High

Exploit odds (30 days)1.2%top 30.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Triangle MicroWorks SCADA Data Gateway Trusted Certification Unrestricted Upload of File Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Triangle MicroWorks SCADA Data Gateway. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the trusted certification feature. The issue lies in the handling of the OpcUaSecurityCertificateAuthorityTrustDir variable, which allows an arbitrary file write with attacker-controlled data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-20537.

Affected products (as reported)

Vendor	Product	Versions
Triangle MicroWorks	SCADA Data Gateway	5.1.3.20324

Weakness: CWE-434 · Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

ZDI-23-1031 x_research-advisory
vendor-provided URL vendor-advisory