CVE-2025-32827: Critical SQL Injection Vulnerability in TeleControl Server Basic

Overview

We are diving into the details of the critical vulnerability identified in TeleControl Server Basic, a commonly used application for remote control and monitoring of systems. This vulnerability, tracked as CVE-2025-32827, enables an authenticated remote attacker to manipulate the application’s database, bypassing authorization controls, and even executing code with significant permissions. Given the widespread use of TeleControl Server Basic, this vulnerability poses a serious threat to the confidentiality, integrity, and availability of sensitive data in affected systems.

Vulnerability Summary

CVE ID: CVE-2025-32827
Severity: Critical (CVSS 8.8)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Unauthorized access to sensitive data, potential system compromise

Affected Products

Product | Affected Versions

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

The vulnerability lies in the ‘ActivateProject’ method used internally by the application. An attacker who has network access to port 8000 and is authenticated can exploit this vulnerability by injecting malicious SQL queries via this method. This allows them to manipulate the application’s database, potentially reading sensitive information, modifying data, or executing arbitrary code with “NT AUTHORITYNetworkService” permissions.

Conceptual Example Code

An attacker might exploit the vulnerability using a specially crafted SQL query like the following:

POST /ActivateProject HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "project_name": "valid_project_name'; DROP TABLE users; --" }

In this conceptual example, the attacker is injecting a SQL command (‘DROP TABLE users’) that deletes the ‘users’ table from the database. The ‘–‘ at the end of the command is a SQL comment operator that makes the database ignore the rest of the original SQL command, preventing any errors that could alert the system to the attack.

Mitigation and Prevention

The immediate mitigation for this vulnerability is to block access to port 8000 or use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and prevent SQL injection attacks. However, these are only temporary measures. The definitive remedy is to apply the vendor’s patch, which fixes the vulnerability in the ‘ActivateProject’ method. Users of TeleControl Server Basic should update their application to version V3.1.2.2 or later as soon as possible.