CVE-2019-11021 Explained : Impact and Mitigation

Schlix CMS 2.1.8-7 has a vulnerability in the admin/app/mediamanager that allows authenticated users to upload files without restrictions, potentially leading to remote code execution. Although uploading a PHP file via the Media Manager was unintentional, it requires administrator permission. The likelihood of an administrator exploiting this bug on their site is rare.

Understanding CVE-2019-11021

In Schlix CMS 2.1.8-7, a flaw in the admin/app/mediamanager allows authenticated users to upload files without restrictions, potentially leading to remote code execution.

What is CVE-2019-11021?

The vulnerability in Schlix CMS 2.1.8-7 enables authenticated users to upload files without restrictions, which could result in remote code execution.

The Impact of CVE-2019-11021

Authenticated users can upload files without restrictions, posing a risk of remote code execution.
Uploading PHP files via the Media Manager, although unintentional, requires administrator permission.
The likelihood of an administrator exploiting this bug on their site is considered rare.

Technical Details of CVE-2019-11021

Schlix CMS 2.1.8-7 vulnerability details.

Vulnerability Description

Vulnerability in admin/app/mediamanager allowing unrestricted file uploads.
Risk of remote code execution due to the flaw.

Affected Systems and Versions

Product: Schlix CMS 2.1.8-7
Vendor: N/A
Version: N/A

Exploitation Mechanism

Authenticated users can upload files without restrictions, potentially leading to remote code execution.

Mitigation and Prevention

Protecting against CVE-2019-11021.

Immediate Steps to Take

Update Schlix CMS to a patched version.
Restrict file upload permissions for users.
Monitor file uploads for suspicious activity.

Long-Term Security Practices

Regularly audit and review file upload permissions.
Educate administrators on secure file upload practices.

Patching and Updates

Apply patches and updates provided by Schlix CMS to address the vulnerability.