CVE-2020-5237 : Vulnerability Insights and Analysis

Multiple relative path traversal vulnerabilities in the oneup/uploader-bundle before 1.9.3 and 2.1.5 allow remote attackers to upload, copy, and modify files on the filesystem, potentially leading to arbitrary code execution.

Understanding CVE-2020-5237

This CVE involves multiple relative path traversal vulnerabilities in the oneup/uploader-bundle, affecting versions prior to 1.9.3 and 2.1.5.

What is CVE-2020-5237?

CVE-2020-5237 refers to the security issue in the oneup/uploader-bundle that enables remote attackers to manipulate files on the filesystem through various parameters in different controllers.

The Impact of CVE-2020-5237

The vulnerability has a CVSS base score of 8.8, indicating a high severity level. Attackers can exploit this flaw to execute arbitrary code, compromise confidentiality, integrity, and availability of the system.

Technical Details of CVE-2020-5237

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability allows attackers to perform relative path traversal by manipulating specific parameters in different controllers of the oneup/uploader-bundle.

Affected Systems and Versions

Product: oneup/uploader-bundle
Vendor: 1up-lab
Versions Affected: < 1.9.3, >= 2.0.0, < 2.1.5

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating parameters in controllers like BlueimpController.php, DropzoneController.php, FineUploaderController.php, MooUploadController.php, and PluploadController.php.

Mitigation and Prevention

Protecting systems from CVE-2020-5237 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the oneup/uploader-bundle to versions 1.9.3 or 2.1.5, where the issue is fixed.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs.
Conduct regular security audits and penetration testing.

Patching and Updates

Regularly apply security patches and updates to all software components.