CVE-2023-39482: Softing Secure Integration Server Hardcoded Cryptographic Key Information Disclosure Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% 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-321

Description

Softing Secure Integration Server Hardcoded Cryptographic Key Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information 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 libopcuaclient.so. The issue results from hardcoding crytographic keys within the product. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-20610.

Affected products

Softing edgeAggregator: before 3.70 — fixed in 3.70
Softing edgeConnector: before 3.70 — fixed in 3.70
Softing Secure Integration Server: before 1.30 — fixed in 1.30

How to fix

Upgrade to a fixed version: Softing edgeAggregator 3.70; Softing edgeConnector 3.70; Softing Secure Integration Server 1.30. Check the vendor advisory for mitigations.

References

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