CVE-2020-23138 : Security Advisory and Response

An unrestricted file upload vulnerability in Microweber 1.1.18 allows attackers to upload malicious files to the server.

Understanding CVE-2020-23138

This CVE involves a critical file upload vulnerability in Microweber 1.1.18, enabling attackers to upload harmful files to the server.

What is CVE-2020-23138?

The vulnerability allows an attacker to upload PHP code or any extension (e.g., .exe) to the web server by disguising it as image data with the image/jpeg content type and a .php extension.

The Impact of CVE-2020-23138

This vulnerability can lead to remote code execution, enabling attackers to take control of the server, compromise data, and potentially disrupt services.

Technical Details of CVE-2020-23138

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw in Microweber 1.1.18 admin account page allows for unrestricted file uploads, posing a severe security risk.

Affected Systems and Versions

Product: Microweber 1.1.18
Vendor: Microweber
Versions: All versions are affected

Exploitation Mechanism

Attackers exploit the vulnerability by uploading malicious files disguised as image data with a .php extension, bypassing security measures.

Mitigation and Prevention

Protecting systems from CVE-2020-23138 is crucial to prevent exploitation and maintain security.

Immediate Steps to Take

Disable file uploads in user-controlled areas
Implement file type verification to restrict uploads
Regularly monitor and audit uploaded files

Long-Term Security Practices

Conduct regular security assessments and penetration testing
Keep software and systems updated with the latest security patches

Patching and Updates

Apply patches provided by Microweber promptly to address the vulnerability and enhance system security