Author: Ameeba

Overview

The world of cybersecurity is continuously evolving, and a recent vulnerability, CVE-2025-32860, has been identified in TeleControl Server Basic. This vulnerability, which affects all versions of the application prior to V3.1.2.2, allows for SQL injection through the internally used ‘UnlockWebServerGatewaySettings’ method. This could potentially allow an authenticated remote attacker to bypass authorization controls, read from and write to the application’s database, and execute code with “NT AUTHORITYNetworkService” permissions. This vulnerability is severe due to its potential to compromise systems and cause data leakage.

Vulnerability Summary

CVE ID: CVE-2025-32860
Severity: High (8.8 CVSS Score)
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

The vulnerability exists due to insufficient input validation in the ‘UnlockWebServerGatewaySettings’ method. This method, which is internally used by the application, does not effectively sanitize user input and can be manipulated through SQL injection. An attacker, after gaining network access and authenticating themselves, can pass malicious SQL statements to manipulate the application’s database. They can bypass authorization controls, read from and write to the database, and even execute code with “NT AUTHORITYNetworkService” permissions.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP request:

POST /UnlockWebServerGatewaySettings HTTP/1.1
Host: vulnerable.server.com
Content-Type: application/sql
{ "settings": "'; DROP TABLE users; --" }

In the above example, the attacker is sending a malicious SQL statement (`DROP TABLE users;`) to the server, which could potentially lead to data loss if the ‘users’ table exists.
Please note that this is a conceptual example and might not work as-is. The actual exploit would depend on the specific implementation of the ‘UnlockWebServerGatewaySettings’ method and the structure of the application’s database.

Overview

This blog post will examine a critical vulnerability, identified as CVE-2025-32859, that affects TeleControl Server Basic, a popular application used in telecommunication infrastructures. The vulnerability, which involves SQL injection through an internally used method, exposes users to potential attacks that can compromise their systems and lead to significant data leakage. Addressing this vulnerability is of high importance due to the potential damage and the broad user base of the affected application.

Vulnerability Summary

CVE ID: CVE-2025-32859
Severity: High – CVSS Score 8.8
Attack Vector: Network
Privileges Required: Low (authenticated remote access)
User Interaction: None
Impact: System compromise, data leakage, and unauthorized execution of code

Affected Products

Product | Affected Versions

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

The exploit leverages an SQL injection vulnerability. An attacker who has authenticated remote access can bypass authorization controls via the ‘LockWebServerGatewaySettings’ method. This method, which is internally used by the application, is vulnerable to SQL injection, allowing the attacker to manipulate the application’s database.
The intruder can read and write to the application’s database and execute code with “NT AUTHORITYNetworkService” permissions. This level of access can lead to a system compromise, including unauthorized data access and potential data leakage. The attack requires the vulnerable version of the application to be running and accessible via port 8005.

Conceptual Example Code

Here is a conceptual example of how an attacker might exploit this vulnerability:

POST /LockWebServerGatewaySettings HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"query": "SELECT * FROM Users WHERE UserID='1' OR '1'='1';--"
}

In this example, the attacker injects malicious SQL code into the ‘LockWebServerGatewaySettings’ method, causing the application to return data it shouldn’t. The impact can be severe, leading to system compromise, data leakage, and unauthorized code execution.

Mitigation Guidance

TeleControl has released a patch (version V3.1.2.2) that addresses this vulnerability. Users are strongly advised to update their systems to this or a later version. As a temporary measure, users can also implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block malicious traffic exploiting this vulnerability. However, these measures are only temporary and cannot substitute for the application of the vendor-released patch.

Overview

In the realm of cybersecurity, vulnerabilities are often an inevitable part of software development. Recently, a significant vulnerability, CVE-2025-32858, has been identified in all versions of TeleControl Server Basic prior to V3.1.2.2. This vulnerability is of particular concern as it allows for SQL injection, a common hacking technique used to manipulate databases, through an internally used method. This exploit has the potential to affect any organization or individual using the affected versions of this application, leading to potential system compromise or data leakage.
The severity of this issue is underlined by the fact that a successful attack could provide an attacker with access to sensitive data or even control over the system. Therefore, it is crucial for users of TeleControl Server Basic to understand the details of this vulnerability and take the necessary steps to mitigate the risks it poses.

Vulnerability Summary

CVE ID: CVE-2025-32858
Severity: High (8.8/10)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
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

The vulnerability lies in the ‘UpdateWebServerGatewaySettings’ method internally used by TeleControl Server Basic. An attacker can manipulate this function with malicious SQL statements. This SQL injection can bypass authorization controls and gain access to the application’s database. The attacker can read from and write to the database, even execute code with “NT AUTHORITYNetworkService” permissions. The exploit requires the attacker to be able to access port 8000 on a system running a vulnerable version of the application.

Conceptual Example Code

Here is a conceptual example of how an attacker might exploit this vulnerability. This example uses a malicious SQL statement in a HTTP POST request to the vulnerable endpoint.

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

In this example, the malicious SQL statement `’; DROP TABLE users; –` is injected into the application through the serverGatewaySettings parameter. This could cause the application to delete the users table from its database, leading to potential data loss and disruption of service.
Remember, this is a conceptual example and the actual exploit could take various forms depending on the attacker’s goals and the specific configuration of the system being targeted.

Overview

A new high-risk vulnerability, CVE-2025-32856, has been identified in TeleControl Server Basic, a widely used industrial control system. This vulnerability poses a significant risk to businesses using versions prior to V3.1.2.2. It can potentially allow an authenticated remote attacker to manipulate the application’s database, bypassing authorization controls, and even execute code. This can lead to severe consequences, such as system compromise or data leakage.
This vulnerability is especially concerning because of its high severity score (8.8), signifying that exploited systems could suffer significant impact. Companies using the affected versions of TeleControl Server Basic are strongly advised to patch their systems or apply mitigation strategies as soon as possible.

Vulnerability Summary

CVE ID: CVE-2025-32856
Severity: High, CVSS score of 8.8
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potentially complete system compromise, data leakage, and unauthorized code execution

Affected Products

Product | Affected Versions

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

The vulnerability, CVE-2025-32856, results from an SQL injection flaw in the ‘LockBufferingSettings’ method used internally by the application. An attacker with network access to port 8000 can exploit this vulnerability by sending specially crafted SQL statements to manipulate the application’s database. This could allow the attacker to bypass authorization, read from and write to the database, and potentially execute arbitrary code with “NT AUTHORITYNetworkService” permissions.

Conceptual Example Code

Assuming the attacker knows the structure of the application’s database, a malicious SQL statement could be crafted as follows:

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

In this conceptual example, the attacker sends a request to the vulnerable endpoint, injecting a malicious SQL command to delete the ‘users’ table from the database. This is a simplified example; real-world attacks might be more complex and could potentially lead to full system compromise.

Mitigation

To mitigate this vulnerability, it is recommended to apply the latest patches provided by the TeleControl Server Basic vendor. If patching is not immediately possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary measure can help protect against potential SQL injection attacks. Regularly monitoring system logs and network traffic can also aid in early detection of any unusual activity.

Overview

CVE-2025-32855 is a significant cybersecurity vulnerability affecting all versions of TeleControl Server Basic prior to V3.1.2.2. This vulnerability is a type of SQL Injection, a common and dangerous security flaw that can be exploited by an attacker to manipulate the application’s database. It was identified that the ‘UnlockOpcSettings’ method, internally used by the application, is susceptible to this SQL injection attack. The vulnerability is particularly concerning because it allows an authenticated attacker to bypass authorization controls, read from, write to the application’s database, and even execute code with “NT AUTHORITYNetworkService” permissions. Given these capabilities, this vulnerability could potentially lead to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-32855
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low (Authenticated Users)
User Interaction: None
Impact: Bypass of authorization controls, potential system compromise and data leakage

Affected Products

Product | Affected Versions

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

An attacker who has gained authenticated access to the TeleControl Server Basic application can exploit this vulnerability by sending specially crafted SQL queries through the ‘UnlockOpcSettings’ method. This method fails to properly sanitize user input, allowing an attacker to manipulate the SQL commands executed by the application. Consequently, an attacker can read from and write to the application’s database, bypassing authorization controls, and potentially compromising the system or leaking data.

Conceptual Example Code

Please note that the following code is a conceptual example and may not work as is. It’s provided to illustrate how an attacker might exploit the vulnerability:

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

In this example, the attacker sends a malicious POST request to the ‘UnlockOpcSettings’ endpoint. The ‘parameter’ field contains a SQL query that, if not properly sanitized by the application, would result in the deletion of the ‘users’ table from the database.

Mitigation

Vendors have released a patch to address this vulnerability. Users of affected versions of TeleControl Server Basic are urged to update their software to version 3.1.2.2 or later as soon as possible. As a temporary mitigation measure, users could also employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and prevent SQL injection attempts.