CVE-2023-39463: scada data gateway File Upload RCE

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.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
trianglemicroworks	scada_data_gateway	All

References

Other References

https://www.trianglemicroworks.com/products/scada-data-gateway/what's-new https://www.zerodayinitiative.com/advisories/ZDI-23-1031/ https://www.trianglemicroworks.com/products/scada-data-gateway/what's-new https://www.zerodayinitiative.com/advisories/ZDI-23-1031/

Frequently Asked Questions

What is CVE-2023-39463? +

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. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2023-39463? +

CVE-2023-39463 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-39463? +

CVE-2023-39463 affects products from trianglemicroworks, specifically: scada_data_gateway. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-39463? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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