CVE-2019-19384 : Exploit Details and Defense Strategies

FusionPBX 4.4.1's app/fax/fax_log_view.php file is vulnerable to a cross-site scripting (XSS) attack, allowing malicious actors to inject arbitrary web scripts or HTML through the fax_uuid parameter.

Understanding CVE-2019-19384

This CVE involves a security vulnerability in FusionPBX 4.4.1 that can be exploited by attackers to execute XSS attacks.

What is CVE-2019-19384?

This CVE identifies a specific XSS vulnerability in the FusionPBX 4.4.1 version, which can be leveraged by remote attackers to insert malicious web scripts or HTML code using the fax_uuid parameter.

The Impact of CVE-2019-19384

The vulnerability can lead to unauthorized access, data theft, and potential manipulation of the affected system's content, posing a significant risk to the confidentiality and integrity of the system.

Technical Details of CVE-2019-19384

FusionPBX 4.4.1's security flaw is detailed below.

Vulnerability Description

The vulnerability in app/fax/fax_log_view.php allows for the injection of arbitrary web scripts or HTML by exploiting the fax_uuid parameter.

Affected Systems and Versions

Affected Version: FusionPBX 4.4.1
Product: FusionPBX
Vendor: N/A

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the fax_uuid parameter to inject malicious scripts or HTML code into the system.

Mitigation and Prevention

Protect your system from CVE-2019-19384 using the following strategies.

Immediate Steps to Take

Apply security patches provided by FusionPBX promptly.
Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
Monitor and filter user-generated content to detect and block malicious scripts.

Long-Term Security Practices

Regularly update FusionPBX to the latest secure versions.
Conduct security audits and penetration testing to identify and address vulnerabilities.
Educate users on safe browsing practices and the risks of executing untrusted scripts.

Patching and Updates

Ensure timely installation of security patches and updates released by FusionPBX to mitigate the XSS vulnerability.