CVE-2019-19367 : Vulnerability Insights and Analysis

In FusionPBX version 4.4.1, a cross-site scripting (XSS) vulnerability was discovered in app/fax/fax_files.php, allowing remote attackers to inject malicious scripts or HTML through the id parameter.

Understanding CVE-2019-19367

This CVE identifies a security issue in FusionPBX version 4.4.1 that can be exploited by attackers to execute XSS attacks.

What is CVE-2019-19367?

The vulnerability in FusionPBX version 4.4.1 enables remote attackers to insert their own web scripts or HTML code via the id parameter, potentially leading to unauthorized actions on the affected system.

The Impact of CVE-2019-19367

The exploitation of this vulnerability could result in unauthorized access, data theft, and potential manipulation of the affected FusionPBX system.

Technical Details of CVE-2019-19367

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

Vulnerability Description

The XSS vulnerability in app/fax/fax_files.php in FusionPBX 4.4.1 allows attackers to inject arbitrary web scripts or HTML code through the id parameter.

Affected Systems and Versions

FusionPBX version 4.4.1

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted requests containing malicious scripts or HTML code through the id parameter, tricking the system into executing these scripts.

Mitigation and Prevention

To address CVE-2019-19367 and enhance system security, follow these mitigation steps:

Immediate Steps to Take

Update FusionPBX to a patched version that addresses the XSS vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent script injection.
Regularly monitor and audit web application logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and remediate vulnerabilities.
Educate developers and administrators on secure coding practices to prevent XSS and other common web application vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by FusionPBX and promptly apply them to ensure the system is protected against known vulnerabilities.