CVE-2019-16321 Explained : Impact and Mitigation

ScadaBR versions 1.0CE and 1.1.x up to 1.1.0-RC are vulnerable to cross-site scripting (XSS) attacks when a request is made for a non-existent resource.

Understanding CVE-2019-16321

This CVE identifies a security vulnerability in ScadaBR software that can be exploited through cross-site scripting.

What is CVE-2019-16321?

ScadaBR versions 1.0CE and 1.1.x up to 1.1.0-RC are susceptible to XSS attacks when attempting to access a resource that does not exist, particularly through the dwr/test/ PATH_INFO.

The Impact of CVE-2019-16321

The XSS vulnerability in ScadaBR could allow attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-16321

ScadaBR's vulnerability to cross-site scripting is detailed below.

Vulnerability Description

The issue arises when a request is made for a non-existent resource, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

ScadaBR versions 1.0CE and 1.1.x up to 1.1.0-RC

Exploitation Mechanism

Attackers can exploit this vulnerability by accessing the dwr/test/ PATH_INFO, allowing them to inject and execute malicious scripts.

Mitigation and Prevention

Protecting systems from CVE-2019-16321 involves immediate actions and long-term security practices.

Immediate Steps to Take

Implement input validation to prevent script injection attacks
Regularly monitor and analyze web traffic for suspicious activities

Long-Term Security Practices

Keep software up to date with the latest security patches
Educate users on safe browsing habits and recognizing phishing attempts

Patching and Updates

Ensure that ScadaBR is updated to a secure version that addresses the XSS vulnerability.