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CVE-2025-59297: Delta Electronics DIAScreen Vulnerability Due to Lack of User-Supplied File Validation

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Overview

This report provides an analysis of the CVE-2025-59297 vulnerability found in Delta Electronics DIAScreen. The software lacks proper validation of user-supplied files, making susceptible systems possible targets for attackers who can execute malicious code within the current process. This vulnerability has the potential to compromise system integrity and cause data leakage, making it a critical issue to address for any organization using the affected software.

Vulnerability Summary

CVE ID: CVE-2025-59297
Severity: High (CVSS: 7.8)
Attack Vector: User-supplied file
Privileges Required: None
User Interaction: Required
Impact: Execution of malicious code, potential for system compromise and data leakage

Affected Products

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Product | Affected Versions

Delta Electronics DIAScreen | All Versions

How the Exploit Works

The exploit works by exploiting the lack of validation for user-supplied files in Delta Electronics DIAScreen software. Attackers can craft a malicious file, which when opened by a user, can execute arbitrary code in the context of the current process. This could potentially allow an attacker to compromise the system or leak sensitive data.

Conceptual Example Code

This is a conceptual example demonstrating how a malicious file could be crafted. Note that actual malicious content is not provided.

POST /uploadFile HTTP/1.1
Host: vulnerable.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="malicious_file.txt"
Content-Type: text/plain
{ "malicious_code": "..." }
------WebKitFormBoundary7MA4YWxkTrZu0gW

Mitigation

To mitigate the risk of this vulnerability, it is recommended to apply the vendor patch as soon as it is available. In the interim, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Additionally, it is advisable to avoid opening any untrusted or unknown files.

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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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