CVE-2025-31351: SQL Injection Vulnerability in TeleControl Server Basic

Overview

In the realm of cybersecurity, a new critical vulnerability has been identified in all versions of TeleControl Server Basic preceding V3.1.2.2. This vulnerability, tagged as CVE-2025-31351, can potentially compromise the system and lead to data leakage. The vulnerability is significant as it affects a wide range of systems utilizing TeleControl Server Basic, a popular software in network administration. The flaw exposes these systems to SQL injection attacks, which could have severe consequences in terms of information security and integrity.

Vulnerability Summary

CVE ID: CVE-2025-31351
Severity: High (CVSS: 8.8)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise, potential data leakage

Affected Products

Product | Affected Versions

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

The vulnerability resides in the ‘CreateProject’ method, used internally by the TeleControl Server Basic application. An attacker, with authenticated access, can exploit the system by injecting malicious SQL commands. The flaw allows the attacker to bypass authorization controls, read from and write to the application’s database, and execute code with “NT AUTHORITYNetworkService” permissions. However, to launch a successful attack, the attacker must have access to port 8000 on a system where a vulnerable version of the application is being run.

Conceptual Example Code

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

-- Assuming the attacker is authenticated and has access to the 'CreateProject' method
'CREATE PROJECT new_project; -- legitimate command
-- The following is the injected malicious SQL command
'; DROP TABLE users; --

In the above pseudocode, after the legitimate ‘CREATE PROJECT’ command, a malicious SQL command is injected (‘; DROP TABLE users; –‘). This command can potentially delete the entire ‘users’ table from the application’s database, leading to significant data loss and system compromise.

Countermeasures

To mitigate this vulnerability, apply the vendor-provided patch immediately. If that’s not immediately possible, consider using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary measure to detect and prevent potential SQL injection attacks. Regularly updating and patching your software will also help to prevent such vulnerabilities from being exploited.