Overview
We are discussing a high severity SQL injection vulnerability identified as CVE-2025-30003, which affects all versions of TeleControl Server Basic prior to V3.1.2.2. This vulnerability is significant as it allows an authenticated remote attacker to bypass authorization controls, thus enabling them to read and write to the application’s database. This constitutes a significant security risk, as it can potentially enable system compromise or data leakage.
The vulnerability is of particular concern to organizations that use TeleControl Server Basic for their operations as it exposes their systems to potential cyber attacks. The vulnerability is exploitable through the internally used ‘UpdateProjectConnections’ method and requires the attacker to have access to port 8000 on a system where a vulnerable version of the application is executed on.
Vulnerability Summary
CVE ID: CVE-2025-30003
Severity: High – 8.8 (CVSS score)
Attack Vector: Network
Privileges Required: Low (Authenticated user)
User Interaction: Required
Impact: System Compromise, Data Leakage
Affected Products
No phone number, email, or personal info required.
Product | Affected Versions
TeleControl Server Basic | All versions < V3.1.2.2 How the Exploit Works
The vulnerability occurs due to a lack of proper sanitization of user inputs within the ‘UpdateProjectConnections’ method. This allows an attacker to send specially crafted SQL commands, leading to SQL injection. An attacker who successfully exploits this vulnerability can manipulate SQL queries, allowing them to read from or write to the application’s database and execute code with “NT AUTHORITY\NetworkService” permissions.
Conceptual Example Code
An example of how this vulnerability might be exploited is shown below:
POST /UpdateProjectConnections HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"projectID": "1; DROP TABLE users;"
}In this example, the attacker injects a malicious SQL command (`DROP TABLE users;`) to delete the users table from the database. This is a simple example. An actual attack could involve more sophisticated commands to exfiltrate data, manipulate data, or gain unauthorized access.
Recommendations for Mitigation
Users are strongly recommended to update their TeleControl Server Basic to the latest version (V3.1.2.2 or later) as soon as possible, as this contains the vendor patch which addresses this vulnerability.
As a temporary mitigation measure, users can implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block potential SQL injection attacks. However, this does not replace the need for patching the software as it only offers a layer of protection against this specific attack vector.