CVE-2025-32842: 
Telecontrol Server Basic vulnerability analysis and mitigation

A critical SQL injection vulnerability (CVE-2025-32842) has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The vulnerability exists in the internally used 'GetUsers' method, which could allow an authenticated remote attacker to bypass authorization controls. The vulnerability was discovered and disclosed on April 16, 2025, affecting all versions of TeleControl Server Basic prior to V3.1.2.2 (Siemens Advisory, CISA Advisory).

The vulnerability is classified as an SQL injection (CWE-89) with a CVSS v3.1 base score of 8.8 (HIGH) and vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Additionally, it has a CVSS v4.0 base score of 8.7 with vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. The vulnerability specifically affects the 'GetUsers' method in the application (NVD, Siemens Advisory).

Successful exploitation of this vulnerability could allow an authenticated remote attacker to bypass authorization controls, read from and write to the application's database, and execute code with 'NT AUTHORITY\NetworkService' permissions. The attack requires the attacker to have access to port 8000 on a system where a vulnerable version of the application is running (CISA Advisory).

The vulnerability requires network access and low attack complexity, but does need valid authentication credentials. An attacker must be able to access port 8000 on the target system where a vulnerable version of TeleControl Server Basic is executed (Siemens Advisory).

Siemens has released version V3.1.2.2 which addresses this vulnerability and recommends users to update to this latest version. As a temporary workaround, organizations should restrict access to port 8000 on affected systems to trusted IP addresses only. Additionally, Siemens recommends configuring the environment according to their operational guidelines for Industrial Security (Siemens Advisory).