CVE-2017-11756 Explained : Impact and Mitigation

Ear Music version 4.1 build 20170710 has a vulnerability that allows remote authenticated users to run unauthorized PHP code by manipulating music-upload extensions.

Understanding CVE-2017-11756

This CVE involves a security flaw in Ear Music version 4.1 build 20170710 that enables authenticated remote users to execute unauthorized PHP code.

What is CVE-2017-11756?

In Earcms Ear Music through 4.1 build 20170710, authenticated users can upload and execute arbitrary PHP code by modifying music-upload extensions.

The Impact of CVE-2017-11756

The vulnerability permits remote authenticated users to run unauthorized PHP code, potentially leading to severe security breaches and unauthorized access.

Technical Details of CVE-2017-11756

Ear Music version 4.1 build 20170710 is susceptible to remote code execution due to improper validation of uploaded files.

Vulnerability Description

The flaw allows remote authenticated users to upload and execute PHP code by altering permitted music-upload extensions.

Affected Systems and Versions

Product: Ear Music
Version: 4.1 build 20170710

Exploitation Mechanism

Users can manipulate the permitted music-upload extensions in admin.php?iframe=config_upload to include .php along with .mp3 and .m4a, enabling them to upload and execute unauthorized PHP code.

Mitigation and Prevention

To address CVE-2017-11756, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

Disable file uploads in admin settings if not essential.
Implement strict file type validation for uploaded files.
Monitor admin.php?iframe=config_upload for unauthorized changes.

Long-Term Security Practices

Regularly update and patch the Ear Music application.
Conduct security audits to identify and address vulnerabilities.
Educate users on secure upload practices.

Patching and Updates

Apply patches and updates provided by the vendor to mitigate the vulnerability effectively.