CVE-2020-1933 : Security Advisory and Response

Apache NiFi 1.0.0 to 1.10.0 is affected by a XSS vulnerability that allows injection of malicious scripts into the UI.

Understanding CVE-2020-1933

A Cross-Site Scripting (XSS) vulnerability in Apache NiFi 1.0.0 to 1.10.0 could potentially lead to the injection of malicious scripts into the user interface.

What is CVE-2020-1933?

The CVE-2020-1933 vulnerability entails the risk of executing unauthorized scripts by an authenticated user using Firefox, causing a potential XSS attack.

The Impact of CVE-2020-1933

The vulnerability poses a risk of compromising the confidentiality and integrity of data by injecting unauthorized scripts into the Apache NiFi UI.

Technical Details of CVE-2020-1933

Apache NiFi 1.0.0 to 1.10.0 is susceptible to XSS attacks due to the following:

Vulnerability Description

XSS vulnerability in Apache NiFi 1.0.0 to 1.10.0 allows the insertion of malicious scripts into the user interface.

Affected Systems and Versions

Product: Apache NiFi
Vendor: Apache Software Foundation
Versions: 1.0.0 to 1.10.0

Exploitation Mechanism

Malicious scripts can be injected through user actions into the Apache NiFi UI with Firefox, affecting unaware authenticated users.

Mitigation and Prevention

To address CVE-2020-1933, consider the following:

Immediate Steps to Take

Disable Apache NiFi UI access or restrict it to trusted users.
Implement input validation to prevent script injection.
Regularly monitor and audit the Apache NiFi UI for suspicious activities.

Long-Term Security Practices

Educate users on identifying and avoiding phishing attempts to mitigate XSS risks.
Stay informed about security updates and best practices for Apache NiFi application usage.

Patching and Updates

Apply the latest security patches and updates provided by Apache Software Foundation to prevent XSS vulnerabilities.