CVE-2023-39479: secure (CVSS 8.8)

Description

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.

Is your site exposed to CVE-2023-39479?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-552 CWE-552

Affected Products

Vendor	Product	Versions
softing	secure_integration_server	All

References

Other References

https://www.zerodayinitiative.com/advisories/ZDI-23-1061/ https://www.zerodayinitiative.com/advisories/ZDI-23-1061/

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2023-39479? +

CVE-2023-39479 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-39479? +

CVE-2023-39479 affects products from softing, specifically: secure_integration_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-39479? +

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.

Related Vulnerabilities

CVE-2024-6878

Files or Directories Accessible to External Parties vulnerability in Eliz Software Panel allows Collect Data from Common Resource Locations.This issue …

CVE-2009-10005

ContentKeeper Web Appliance (now maintained by Impero Software) versions prior to 125.10 expose the mimencode binary via a CGI endpoint, …

CVE-2025-34110

A directory traversal vulnerability exists in ColoradoFTP Server ≤ 1.3 Build 8 for Windows, allowing unauthenticated attackers to read or …

CVE-2025-34139

A vulnerability exists in Sitecore Experience Manager (XM), Experience Platform (XP), Experience Commerce (XC), and Managed Cloud that could allow …

CVE-2025-64185

Open OnDemand is an open-source HPC portal. Prior to versions 4.0.8 and 3.1.16, Open OnDemand packages create world writable locations …

CVE-2021-4463

Longjing Technology BEMS API versions up to and including 1.21 contains an unauthenticated arbitrary file download vulnerability in the 'downloads' …

CVE-2023-39479