CVE-2019-9839 : Exploit Details and Defense Strategies

VFront 0.99.5 has a vulnerability that can lead to Reflected XSS via specific parameters in certain files.

Understanding CVE-2019-9839

This CVE involves a Reflected XSS vulnerability in VFront 0.99.5, affecting specific parameters in particular files.

What is CVE-2019-9839?

CVE-2019-9839 is a security vulnerability in VFront 0.99.5 that allows attackers to execute malicious scripts through reflected cross-site scripting (XSS) by manipulating certain parameters in specific files.

The Impact of CVE-2019-9839

This vulnerability can be exploited by attackers to inject and execute malicious scripts in the context of a user's web browser, potentially leading to unauthorized access, data theft, and other security risks.

Technical Details of CVE-2019-9839

This section provides more technical insights into the vulnerability.

Vulnerability Description

The parameter

descrizione_g

in

admin/menu_registri.php

or the parameter

azzera

in

admin/sync_reg_tab.php

can lead to Reflected XSS in VFront 0.99.5.

Affected Systems and Versions

Product: VFront
Version: 0.99.5

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the

descrizione_g

parameter in

admin/menu_registri.php

or the

azzera

parameter in

admin/sync_reg_tab.php

to inject and execute malicious scripts.

Mitigation and Prevention

Protecting systems from CVE-2019-9839 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update VFront to the latest version to patch the vulnerability.
Implement input validation to sanitize user inputs and prevent script injection.
Monitor and filter user-generated content to detect and block malicious scripts.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Educate developers and users on secure coding practices and the risks of XSS attacks.

Patching and Updates

Regularly check for security updates and patches from VFront to ensure that known vulnerabilities, including CVE-2019-9839, are promptly addressed.