What is CVE-2023-39479?

CVE-2023-39479 is a high-severity vulnerability in Softing Secure Integration Server, classified under Files or Directories Accessible to External Parties. CVSS score: 8.8/10. Published 2024-05-03.

How severe is CVE-2023-39479?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Softing Secure Integration Server

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.

EPSS: 0.016 (74.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Softing Secure Integration Server — versions 1.22.0.8686
Softing Secure_integration_server — versions 1.22.0.8686

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

References

zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2023-39479?: CVE-2023-39479 is a high-severity vulnerability in Softing Secure Integration Server, classified under Files or Directories Accessible to External Parties. CVSS score: 8.8/10. Published 2024-05-03.
How severe is CVE-2023-39479?: High severity. CVSS v3 base score is 8.8 out of 10.