Cybersecurity Vulnerabilities

Critical Vulnerability in Pyxis Signage: CVE-2025-0645 Exploited for Unrestricted File Upload

Overview

CVE-2025-0645 identifies a high-severity vulnerability within Narkom Communication and Software Technologies Trade Ltd. Co. Pyxis Signage. This vulnerability allows for the unrestricted upload of files with potentially dangerous types, leading to Accessing Functionality Not Properly Constrained by ACLs. The issue affects Pyxis Signage versions up to and including 31012025. Exploitation of this vulnerability could grant attackers unauthorized access and control over the system.

Technical Details

The root cause of CVE-2025-0645 lies in the insufficient validation of file types during the upload process. The application fails to adequately restrict the types of files that can be uploaded, allowing attackers to upload malicious files (e.g., executable scripts, web shells) to the server. Furthermore, inadequate Access Control Lists (ACLs) on the uploaded files and related functionalities permit unauthorized access and execution of these malicious files. An attacker could leverage this to execute arbitrary code on the server, potentially leading to data breaches, system compromise, or denial-of-service attacks.

CVSS Analysis

The Common Vulnerability Scoring System (CVSS) assigns CVE-2025-0645 a score of 7.2, indicating a HIGH severity. The CVSS vector reflects the exploitability and impact of the vulnerability.

  • Base Score: 7.2
  • Severity: High

This score highlights the significant risk posed by this vulnerability and the urgency with which it should be addressed.

Possible Impact

Successful exploitation of CVE-2025-0645 can have severe consequences, including:

  • Remote Code Execution (RCE): Attackers can execute arbitrary code on the server, gaining complete control of the system.
  • Data Breach: Sensitive data stored on the server may be compromised.
  • System Compromise: The entire system can be compromised, leading to disruption of services and potential financial losses.
  • Denial of Service (DoS): Attackers can disrupt the availability of the service, preventing legitimate users from accessing it.
  • Unauthorized Access: Gain unauthorized access to restricted functionalities.

Mitigation and Patch Steps

To mitigate the risk associated with CVE-2025-0645, the following steps are recommended:

  1. Apply the Patch: Narkom Communication and Software Technologies Trade Ltd. Co. should release a patch addressing this vulnerability. Apply the patch as soon as it becomes available. Check the official vendor website for updates.
  2. Implement File Type Validation: Implement robust file type validation on the server-side. Restrict accepted file types to a predefined list of safe extensions (e.g., .jpg, .png, .pdf) and validate the file content, not just the extension.
  3. Enforce Strong ACLs: Implement and enforce strict Access Control Lists (ACLs) to limit access to uploaded files and related functionalities.
  4. Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities.
  5. Web Application Firewall (WAF): Implement a Web Application Firewall to filter out malicious requests and protect against common web attacks.

References

Cybersecurity specialist and founder of Gowri Shankar Infosec - a professional blog dedicated to sharing actionable insights on cybersecurity, data protection, server administration, and compliance frameworks including SOC 2, PCI DSS, and GDPR.

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