CVE-2025-32835: SQL Injection Vulnerability in TeleControl Server Basic

Overview

A high-severity vulnerability has been identified in all versions of TeleControl Server Basic before the V3.1.2.2. This vulnerability is of a critical nature as it could potentially allow an authenticated remote attacker to bypass authorization controls, read, write to the application’s database, and execute code with “NT AUTHORITY\NetworkService” permissions. In essence, the exploit could lead to a complete system compromise or data leakage, making it an issue of high concern for all organizations using the affected versions of TeleControl Server Basic.

Vulnerability Summary

CVE ID: CVE-2025-32835
Severity: High (8.8 CVSS)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

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

An authenticated attacker can exploit this vulnerability by sending specially crafted SQL statements to the ‘UpdateConnectionVariableArchivingBuffering’ method of the TeleControl Server Basic. The affected application fails to properly sanitize user-supplied input before passing it to the SQL query. This allows an attacker to manipulate the SQL query to bypass authorization controls, read from and write to the application’s database, and execute code with “NT AUTHORITYNetworkService” permissions.

Conceptual Example Code

The following is a conceptual example of a malicious SQL statement that an attacker might use to exploit this vulnerability:

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

In this example, the attacker sends a JSON payload with a malicious SQL command that would cause the database to delete the ‘users’ table. Note that this is a conceptual example and the specific exploit would depend on the details of the application’s database schema.

Recommendations for Mitigation

Users are advised to apply the vendor patch as soon as possible to mitigate this vulnerability. If the patch cannot be applied immediately, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can be used as temporary mitigation. These solutions can help to detect and block SQL injection attacks, but they are not a substitute for patching the underlying vulnerability.