As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF 1. EXECUTIVE SUMMARY CVSS v3 8.1 ATTENTION: Exploitable remotely/low attack complexity Vendor: Siemens Equipment: SINEC INS Vulnerabilities: Improper Certificate Validation, Improper Input Validation, Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), Unexpected Status Code or Return Value, Missing Report of Error Condition, Improper Check for Unusual or Exceptional Conditions 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to create a denial-of-service condition, intercept credentials, or escalate privileges on the affected device. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Siemens products are affected: SINEC INS: Versions prior to V1.0 SP2 Update 2 3.2 Vulnerability Overview 3.2.1 IMPROPER CERTIFICATE VALIDATION CWE-295 A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a…Read More