CVE-2020-9482 : Vulnerability Insights and Analysis

Apache NiFi Registry versions 0.1.0 to 0.5.0 have a vulnerability where the authentication token is not properly invalidated on the server side, allowing unauthorized API requests for up to 12 hours after logout.

Understanding CVE-2020-9482

This CVE relates to a security issue in Apache NiFi Registry versions 0.1.0 to 0.5.0 that affects the authentication mechanism.

What is CVE-2020-9482?

If NiFi Registry 0.1.0 to 0.5.0 uses an authentication mechanism other than PKI, the server-side authentication token is not invalidated upon user logout, enabling unauthorized API requests.

The Impact of CVE-2020-9482

The vulnerability allows malicious actors to exploit user tokens for up to 12 hours post-logout, potentially leading to unauthorized access and misuse of the NiFi Registry API.

Technical Details of CVE-2020-9482

Apache NiFi Registry versions 0.1.0 to 0.5.0 are susceptible to the following:

Vulnerability Description

Inadequate server-side token invalidation post-logout

Affected Systems and Versions

Product: Apache NiFi Registry
Vendor: Apache
Versions: 0.1.0 to 0.5.0

Exploitation Mechanism

Unauthorized use of client-side tokens for API requests after user logout

Mitigation and Prevention

To address CVE-2020-9482, consider the following steps:

Immediate Steps to Take

Upgrade NiFi Registry to a patched version
Implement PKI-based authentication

Long-Term Security Practices

Regularly review and update authentication mechanisms
Monitor API requests for unusual activity

Patching and Updates

Apply security patches promptly to mitigate vulnerabilities.