CVE-2020-27956 Explained : Impact and Mitigation

An Arbitrary File Upload vulnerability in the Upload Image component in SourceCodester Car Rental Management System 1.0 allows remote code execution via admin/index.php?page=manage_car by uploading .php files to admin/assets/uploads/.

Understanding CVE-2020-27956

This CVE involves a critical security issue in the SourceCodester Car Rental Management System 1.0 that enables attackers to execute remote code.

What is CVE-2020-27956?

The vulnerability allows malicious users to upload .php files to a specific directory, leading to remote code execution through a crafted URL.

The Impact of CVE-2020-27956

This vulnerability can result in unauthorized access, data theft, and potential system compromise, posing a significant risk to the affected system.

Technical Details of CVE-2020-27956

The technical aspects of the CVE provide insights into the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The flaw permits the uploading of malicious .php files to a directory accessible via a web route, enabling attackers to execute arbitrary code remotely.

Affected Systems and Versions

SourceCodester Car Rental Management System 1.0
All instances where the Upload Image component is present

Exploitation Mechanism

Attackers upload malicious .php files to the admin/assets/uploads/ directory
Crafted URLs allow execution of the uploaded files

Mitigation and Prevention

Protecting systems from CVE-2020-27956 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable file uploads in directories accessible via the web server
Implement input validation to restrict file types and sizes
Regularly monitor and audit file uploads for suspicious activities

Long-Term Security Practices

Conduct regular security assessments and penetration testing
Keep software and systems updated with the latest security patches
Educate users and administrators on secure coding practices

Patching and Updates

Apply patches or updates provided by SourceCodester to address the vulnerability
Stay informed about security advisories and best practices to enhance system security