What’s Vulnerable › Vulnerabilities

CVE-2023-39479: Softing Secure Integration Server OPC UA Gateway Directory Creation Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-03 · updated 2026-06-17
• Weakness: CWE-552

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.

Affected products

• Softing Secure Integration Server: 1.22.0.8686

References

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

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