CVE-2023-29377
Received Received - Intake

FileType Bypass in Softing OPC UA C++ SDK

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: MITRE

Description
An issue was discovered in Softing OPC UA C++ SDK through 6.20 and Softing Secure Integration Server through 1.22. By using FileType renames, it is possible to bypass limitations on assignment of a directory path to FileDirectory OPC UA objects and a file path to File OPC UA objects.

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-14
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2023-29377
EUVD
EUVD-2023-60649

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
softing opc_ua_c++_sdk to 6.20 (inc)
softing secure_integration_server to 1.22 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-23 The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.

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Executive Summary

This vulnerability in Softing OPC UA C++ SDK and Softing Secure Integration Server allows bypassing restrictions on file path assignments to OPC UA objects. By exploiting FileType renames, an attacker can manipulate directory or file paths, potentially leading to unauthorized access or code execution.

Detection Guidance

Detecting this vulnerability requires checking for outdated versions of Softing OPC UA C++ SDK or Softing Secure Integration Server. Inspect installed software versions and compare them against the patched releases. Monitor logs for unusual file renaming or path manipulation attempts in OPC UA FileDirectory operations.

Impact Analysis

An attacker could bypass authentication and execute arbitrary code on the affected system, potentially gaining root access. This could lead to full system compromise, data theft, or disruption of services relying on the Softing software.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating confidentiality requirements in GDPR and HIPAA. Organizations using affected Softing products may face compliance violations, legal penalties, and reputational damage.

Mitigation Strategies

Immediately update Softing Secure Integration Server to the latest version provided by Softing. Ensure strong authentication mechanisms are enforced for OPC UA operations. Review and restrict access to FileDirectory and File OPC UA objects to prevent unauthorized path modifications.

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