Overview
The security of Wi-Fi networks is of paramount importance in the modern world, with many businesses and individuals relying on their integrity for daily operations. Recently, a severe security vulnerability, tagged as CVE-2025-4383, has been discovered in the Wi-Fi Cloud Hotspot software provided by Art-in Bilişim Teknolojileri ve Yazılım Hizm. Tic. Ltd. Şti. This vulnerability can allow potential attackers to bypass the authentication process, leading to severe consequences such as system compromise and data leakage.
Vulnerability Summary
CVE ID: CVE-2025-4383
Severity: Critical (9.3 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
Product | Affected Versions
Wi-Fi Cloud Hotspot | Versions before 30.05.2025
How the Exploit Works
The CVE-2025-4383 vulnerability is due to an improper restriction of excessive authentication attempts in the Wi-Fi Cloud Hotspot software. This flaw allows malicious actors to conduct brute force attacks on the system without getting locked out or detected, potentially enabling them to discover the correct credentials and gain unauthorized access to the system. Once in, they could compromise system integrity or leak sensitive data.
Conceptual Example Code
Please note that the following is a
conceptual
example of how an attacker might exploit the vulnerability. It is crucial to understand that the actual exploit might vary according to the specific network configuration and the attacker’s tactics.
POST /wifi-cloud-hotspot/authenticate HTTP/1.1
Host: vulnerable-hotspot.example.com
Content-Type: application/json
{
"username": "admin",
"password": "guess123" //The attacker repeatedly sends requests with different passwords
}In this example, the attacker is attempting to brute force the authentication process by sending numerous requests with different passwords. Due to the vulnerability, the system does not restrict these excessive attempts, allowing the attacker to continue until they find the correct credentials.
Mitigation
The vendor has released a patch to address this vulnerability. Users are strongly advised to apply this patch immediately to their affected systems. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure, helping to detect and potentially block brute force attacks. However, these are only temporary measures and do not substitute the need for the official vendor patch.
