Overview
In the ever-evolving landscape of cyber threats, a new vulnerability has been identified, CVE-2025-32872, that poses a significant risk to systems running TeleControl Server Basic. This vulnerability exposes these systems to SQL injection attacks, potentially leading to unauthorized access or control over the system. This issue arises from the internally used ‘GetOverview’ method, and its exploitation could provide an authenticated remote attacker with the capability to bypass authorization controls. The severity of this vulnerability is further emphasized by its potential to enable malicious actors to alter the application’s database and execute code with “NT AUTHORITYNetworkService” permissions.
Vulnerability Summary
CVE ID: CVE-2025-32872
Severity: High (8.8)
Attack Vector: Network
Privileges Required: Low (Authenticated User)
User Interaction: None
Impact: System compromise, data leakage, unauthorized access and control
Affected Products
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Product | Affected Versions
TeleControl Server Basic | All versions < V3.1.2.2 How the Exploit Works
This vulnerability stems from the ‘GetOverview’ method used internally by the TeleControl Server Basic. An authenticated remote attacker can exploit this method, sending specially crafted SQL queries that the system will execute. These queries can be designed to bypass the authorization controls of the application, granting the attacker unrestricted access to the database. This vulnerability also allows the attacker to execute code with “NT AUTHORITYNetworkService” permissions, potentially leading to a full system compromise.
Conceptual Example Code
The below example demonstrates the potential structure of a malicious SQL query that might be used to exploit this vulnerability.
POST /GetOverview HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"sql_query": "'; DROP TABLE users; --"
}This conceptual example illustrates a basic SQL injection attack, where the attacker appends a malicious query (`DROP TABLE users;`) to the existing query. When this request is processed, the ‘GetOverview’ method may execute the appended query, potentially leading to destructive consequences such as deletion of critical data.
Mitigation and Prevention
The most effective mitigation strategy for this vulnerability is to apply the vendor patch, upgrading the TeleControl Server Basic to version V3.1.2.2 or later. In the absence of a vendor patch or for immediate, temporary mitigation, deploying Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS) can help identify and block potential SQL injection attacks. Regular security audits and secure coding practices can also help in preventing such vulnerabilities.