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    CVE-2023-39479

    Softing Secure Integration Server OPC UA Gateway Directory Creation Vulnerability. This vulnerability allows remote attackers to create directories on affected installations of Softing Secure Integration Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of FileDirectory OPC UA Objects. The issue results from allowing unauthorized access to the filesystem. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-20548.

    Published:May 3, 2024
    Last Modified:Aug 12, 2025
    EPS:May 3, 2024
    EPSS Score:0.00419
    CVSS Score:8.8

    Affected Products

    Vendor
    Softing
    Product
    Secure Integration Server

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-150 Collect Data from Common Resource Locations
    CAPEC-639 Probe System Files

    Related CVEs

    CVE-2023-39482 (CVSS 6.5) — Softing Secure Integration Server Hardcoded Cryptographic Key Information Disclosure Vulnerability. This vulne…
    CVE-2023-39481 (CVSS 8.8) — Softing Secure Integration Server Interpretation Conflict Remote Code Execution Vulnerability. This vulnerabil…
    CVE-2023-39480 (CVSS 6.5) — Softing Secure Integration Server FileDirectory OPC UA Object Arbitrary File Creation Vulnerability. This vuln…
    CVE-2023-39478 (CVSS 8.8) — Softing Secure Integration Server Exposure of Resource to Wrong Sphere Remote Code Execution Vulnerability. Th…
    CVE-2023-38125 (CVSS 8.8) — Softing edgeAggregator Permissive Cross-domain Policy with Untrusted Domains Remote Code Execution Vulnerabili…
    CVE-2023-27336 (CVSS 7.5) — Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vul…
    CVE-2023-27335 (CVSS 9.6) — Softing edgeAggregator Client Cross-Site Scripting Remote Code Execution Vulnerability. This vulnerability all…
    CVE-2023-27334 (CVSS 7.5) — Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulne…
    CVE-2023-41151 (CVSS 7.5) — An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may …
    CVE-2022-37453 (CVSS 7.5) — An issue was discovered in Softing OPC UA C++ SDK before 6.10. A buffer overflow or an excess allocation happe…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High