Overview
A severe vulnerability, tagged as CVE-2025-32866, has been identified in TeleControl Server Basic, a widely used software that plays a pivotal role in the management and control of telecommunication networks. This vulnerability is of particular concern as it allows an authenticated remote attacker to bypass authorization controls, potentially leading to system compromises and data leakage.
The vulnerability resides in all versions of the application that are less than V3.1.2.2 and may affect a significant number of systems globally. It is of the utmost importance for organizations using TeleControl Server Basic to understand this vulnerability, its potential impact, and how to mitigate it effectively.
Vulnerability Summary
CVE ID: CVE-2025-32866
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise, data leakage
Affected Products
Product | Affected Versions
TeleControl Server Basic | All versions < V3.1.2.2 How the Exploit Works
The vulnerability hinges on an SQL injection point within the ‘GetLogs’ method, an internally used function. An attacker, who has gained authenticated access to the system, can exploit this vulnerability by sending specially crafted inputs through the ‘GetLogs’ method. This would allow the attacker to manipulate SQL queries, bypass authorization controls, and read from and write to the application’s database. In some cases, the attacker might also be able to execute code with “NT AUTHORITYNetworkService” permissions.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. This is a hypothetical SQL injection payload sent through a POST request.
POST /GetLogs HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"logDate": "2025-01-01', DROP TABLE users; --"
}In this example, the attacker uses the SQL injection vulnerability to execute a malicious SQL statement (`DROP TABLE users;`) that would delete the users’ table in the database.
Mitigation Strategies
The primary mitigation strategy for this vulnerability is to apply the vendor-supplied patch. Users of the affected versions of TeleControl Server Basic should upgrade to version V3.1.2.2 or later as soon as possible. As a temporary mitigation measure, implementing a web application firewall (WAF) or intrusion detection system (IDS) can provide some level of protection. However, these are temporary measures, and a permanent fix should be applied as soon as it becomes available.
