CVE-2025-32837: Critical SQL Injection Vulnerability in TeleControl Server Basic

Overview

The cybersecurity threat landscape is ever-changing, with new vulnerabilities emerging on a regular basis. One of the most recent threats is the CVE-2025-32837 vulnerability, a serious flaw found in TeleControl Server Basic affecting all versions prior to V3.1.2.2. This vulnerability could allow an attacker to bypass security measures, enabling them to read from and write to the application’s database, and execute code with “NT AUTHORITYNetworkService” permissions. This vulnerability is particularly concerning given its potential impact on system integrity and data security, making it a priority for organizations using TeleControl Server Basic to address.

Vulnerability Summary

CVE ID: CVE-2025-32837
Severity: Critical – 8.8 CVSS Score
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential 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 an internally used ‘GetActiveConnectionVariables’ method of TeleControl Server Basic. An attacker exploiting this vulnerability could use a specially crafted SQL query to manipulate the application’s database. The attacker would need authenticated access and the ability to reach port 8000 where the vulnerable application is running. Successful exploitation could result in unauthorized reading and writing to the application’s database and the execution of code with “NT AUTHORITYNetworkService” permissions.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited:

POST /GetActiveConnectionVariables HTTP/1.1
Host: target.example.com:8000
Content-Type: application/json
{ "database_query": "1; DROP TABLE users;" }

In this example, the malicious SQL command `DROP TABLE users;` would result in the deletion of the ‘users’ table from the database if successfully executed.

Mitigation

Organizations affected by this vulnerability are advised to immediately apply vendor patches to prevent potential exploitation. If patches are not yet available, users can employ Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) as temporary mitigations. Moreover, restricting network access to vulnerable systems can further decrease the risk of exploitation.