CVE-2025-32845: Critical SQL Injection Vulnerability in TeleControl Server Basic

Overview

A significant vulnerability, CVE-2025-32845, has been identified that affects TeleControl Server Basic, a widely used application for remote control and monitoring of industrial processes. The vulnerability is related to SQL injection and could potentially allow an attacker to bypass security controls, access sensitive data, and execute malicious code. The issue is specifically situated within the ‘UpdateGeneralSettings’ method of the application, and it applies to all versions before V3.1.2.2. This vulnerability is critical as it gives authenticated remote attackers the potential capability to compromise the system or cause a data breach.

Vulnerability Summary

CVE ID: CVE-2025-32845
Severity: Critical, with a CVSS score of 8.8
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Successful exploitation could lead to system compromise and data leakage.

Affected Products

Product | Affected Versions

TeleControl Server Basic | All versions < V3.1.2.2 How the Exploit Works

The vulnerability lies in the ‘UpdateGeneralSettings’ method that the application uses internally. An attacker can exploit this by sending malicious SQL commands inside legitimate requests to the method. Since the application does not adequately sanitize these inputs, it executes the attacker’s commands. This results in unauthorized access to the application’s database, and the attacker can read from, write to the database, and execute code with “NT AUTHORITYNetworkService” permissions.

Conceptual Example Code

The following is a conceptual code snippet demonstrating how the vulnerability might be exploited:

POST /UpdateGeneralSettings HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=admin&password=admin' OR '1'='1';--&newSetting=value

In the above example, `admin’ OR ‘1’=’1′;–` is the injected SQL. It results in the application executing the SQL command, subsequently allowing the attacker to bypass the authorization controls.

Mitigation and Prevention

Users should immediately apply the vendor-supplied patch for this vulnerability. If the patch cannot be applied immediately, as a temporary mitigation, users should use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and prevent attempts to exploit this vulnerability. Furthermore, users should consider implementing a security policy that restricts network access to the application’s port 8000 to minimize the potential attack surface.