Overview
In this post, we will delve into a critical vulnerability, dubbed CVE-2025-32846, affecting all versions of TeleControl Server Basic prior to V3.1.2.2. This vulnerability, an SQL injection, poses a significant risk to organizations using the affected software, potentially leading to system compromise or data leakage. With a severity score of 8.8 out of 10 on the Common Vulnerability Scoring System (CVSS), this vulnerability demands immediate attention from cybersecurity professionals and system administrators in order to safeguard sensitive data and maintain system integrity.
Vulnerability Summary
CVE ID: CVE-2025-32846
Severity: Critical (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise or 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 CVE-2025-32846 SQL injection vulnerability arises from the ‘LockGeneralSettings’ method used internally in the TeleControl Server Basic application. This method does not properly sanitize user input, allowing an authenticated remote attacker to inject malicious SQL commands. Once the attacker gains access through this vulnerability, they can bypass authorization controls, read from and write to the application’s database, and even execute code with “NT AUTHORITYNetworkService” permissions. A successful attack is contingent on the attacker being able to access port 8000 on a system where a vulnerable version of the affected application is running.
Conceptual Example Code
Here’s a conceptual example of how the vulnerability might be exploited. In this case, the attacker sends a malicious payload containing SQL commands through a POST request:
POST /LockGeneralSettings HTTP/1.1
Host: target.example.com
Content-Type: application/sql
{ "settings": "'; DROP TABLE Users; --" }The malicious payload inserted into the ‘settings’ parameter causes the application to execute the SQL command ‘DROP TABLE Users’, deleting the Users table from the database. Note that this is a conceptual example and actual exploit code may differ.
Mitigation Guidance
To mitigate the risk posed by this vulnerability, it is recommended that users update TeleControl Server Basic to version V3.1.2.2 or later, in which this vulnerability has been patched. If this is not immediately possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary mitigation by detecting and blocking SQL injection attempts. However, this should not replace the necessity of applying the official patch as soon as feasible.