Siemens TeleControl Server Basic CreateTrace SQL Injection Remote Code Execution Vulnerability

June 16th, 2025
ZDI-25-381 ZDI-CAN-25911

CVE ID

CVE-2025-27495

CVSS Score

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

Affected Vendors

Siemens

Affected Products

TeleControl Server Basic

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens TeleControl Server Basic. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the implementation of the CreateTrace method. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE.

Additional Details

Siemens has issued an update to correct this vulnerability. More details can be found at:
https://cert-portal.siemens.com/productcert/html/ssa-443402.html

Disclosure Timeline

  • 2025-02-21 - Vulnerability reported to vendor
  • 2025-06-16 - Coordinated public release of advisory
  • 2025-06-16 - Advisory Updated

Credit

Anonymous

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