7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-4147

CVE-2022-4147: Quarkus CORS filter allows simple GET and POST requests with an invalid Origin to proceed

Quarkus CORS filter allows simple GET and POST requests with invalid Origin to proceed. Simple GET or POST requests made with XMLHttpRequest are the ones which have no event listeners registered on the object returned by the XMLHttpRequest upload property and have no ReadableStream object used in the request.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2022-4147

CVE-2022-4147:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
io.quarkus:quarkus-vertx-http	maven	>= 2.14.0.CR1, < 2.14.2.Final	2.14.2.Final
io.quarkus:quarkus-vertx-http	maven	< 2.13.5.Final	2.13.5.Final

Technical Details

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Root Cause Analysis

The vulnerability stems from improper CORS origin validation in Quarkus' HTTP layer. The CORSFilter class is responsible for enforcing CORS policies. The handle method likely contained logic that: 1) Incorrectly classified requests as 'simple' without proper validation 2) Failed to apply origin checks to simple requests 3) Allowed requests with invalid origins to proceed if they met 'simple request' criteria. The fix involved hardening CORS handling and changing error responses, indicating the core validation logic in the CORS filter was flawed. While exact code isn't available, the CORSFilter's request handling is the primary candidate given the vulnerability's nature and component affected (vertx-http).

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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