CVE-2022-4147 : Vulnerability Insights and Analysis

This article provides an overview of CVE-2022-4147, a vulnerability in Quarkus CORS filter that allows simple GET and POST requests with an invalid Origin to proceed.

Understanding CVE-2022-4147

CVE-2022-4147 is a security vulnerability in the Quarkus CORS filter that enables simple GET and POST requests with an invalid Origin to continue. These requests are typically made with XMLHttpRequest without event listeners or ReadableStream objects.

What is CVE-2022-4147?

The CVE-2022-4147 vulnerability in Quarkus-2 allows certain simple XMLHttpRequest requests to bypass security checks despite having an invalid Origin.

The Impact of CVE-2022-4147

This vulnerability could be exploited by an attacker to perform cross-origin attacks, leading to unauthorized data access or manipulation within the application.

Technical Details of CVE-2022-4147

The technical details of CVE-2022-4147 include:

Vulnerability Description

The issue arises from the CORS filter in Quarkus-2, which fails to properly validate the Origin header in certain XMLHttpRequest requests.

Affected Systems and Versions

The vulnerability affects Quarkus-2 version 2.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting requests with an invalid Origin, allowing them to by-pass CORS restrictions and potentially launch cross-origin attacks.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-4147, follow these steps:

Immediate Steps to Take

Implement proper input validation and sanitization techniques.
Monitor and restrict the Origin headers in XMLHttpRequest requests.

Long-Term Security Practices

Regularly update Quarkus-2 to the latest version to patch known vulnerabilities.
Conduct security audits and testing to identify and address any security gaps.

Patching and Updates

Refer to the official security advisory from Red Hat for detailed instructions on patching and updating Quarkus-2.