CVE-2020-11807 : Vulnerability Insights and Analysis

Sourcefabric Newscoop 4.4.7 allows an authenticated user to execute arbitrary PHP code due to an Unrestricted File Upload vulnerability.

Understanding CVE-2020-11807

What is CVE-2020-11807?

This CVE refers to a security flaw in Sourcefabric Newscoop 4.4.7 that enables an authenticated user to run arbitrary PHP code on a server by uploading a file with a dangerous type.

The Impact of CVE-2020-11807

The vulnerability allows attackers to execute PHP code and potentially terminal commands on the server, compromising its security and integrity.

Technical Details of CVE-2020-11807

Vulnerability Description

The flaw arises from an Unrestricted Upload of a File with a Dangerous Type in Sourcefabric Newscoop 4.4.7, enabling the execution of arbitrary PHP code.

Affected Systems and Versions

Affected Version: Sourcefabric Newscoop 4.4.7

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading a file with a dangerous type as an avatar update and then accessing the file under the /images/ path.

Mitigation and Prevention

Immediate Steps to Take

Disable file uploads in user-controlled directories
Implement file type verification and validation mechanisms
Regularly monitor and review uploaded files for malicious content

Long-Term Security Practices

Conduct regular security audits and penetration testing
Educate users on secure file upload practices

Patching and Updates

Apply patches and updates provided by Sourcefabric to address the vulnerability.