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CVE-2024-40071: Arbitrary File Upload Vulnerability in Sourcecodester Online ID Generator System 1.0

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Overview

CVE-2024-40071 is a severe vulnerability found in the Sourcecodester Online ID Generator System 1.0. This vulnerability allows for arbitrary file uploads, leading to the execution of arbitrary code by attackers. Business organizations and individuals who use this system for generating IDs are at risk. The severity of this vulnerability is magnified by its potential to lead to system compromise or data leakage, which can have severe consequences for the affected entity, including loss of data, financial implications and reputational damage.

Vulnerability Summary

CVE ID: CVE-2024-40071
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage

Affected Products

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Product | Affected Versions

Sourcecodester Online ID Generator System | 1.0

How the Exploit Works

This vulnerability exploits the file upload functionality of the Sourcecodester Online ID Generator System. The system settings file, id_generator/classes/SystemSettings.php?f=update_settings, does not adequately validate user-supplied input, allowing an attacker to upload and execute a malicious PHP file. This execution can compromise the system and lead to potential data leakage.

Conceptual Example Code

Below is a conceptual example of how this vulnerability could be exploited. An attacker may craft a malicious PHP file and upload it via an HTTP POST request.

POST /id_generator/classes/SystemSettings.php?f=update_settings HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="uploaded_file"; filename="malicious.php"
Content-Type: application/x-php
<?php
// malicious code here
?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--

This request uploads a PHP file containing malicious code, which can then be executed on the server, compromising the system and potentially leading to data leakage.

Mitigation

Users of the affected system are advised to apply the vendor patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to provide temporary mitigation. Regularly monitoring system logs and network traffic can also help in detecting any unusual activity, and immediate action should be taken if any such activity is detected.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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