What is the vulnerability ID for this vulnerability?

The vulnerability ID is CVE-2020-35217.

What is the severity of CVE-2020-35217?

The severity of CVE-2020-35217 is high.

What is the affected software for CVE-2020-35217?

The affected software for CVE-2020-35217 is Eclipse Vert.x-web version 4.0.0 milestone 1-4.

How does this vulnerability work?

This vulnerability allows an attacker to bypass CSRF verification by comparing the CSRF token in the cookie against a CSRF token that is stored in the session.

Is there a fix available for CVE-2020-35217?

Yes, a fix has been implemented. Please refer to the provided reference for more information.

Vulnerability/
CVE-2020-35217

high

8.8

CWE

352

20/1/2021

4/8/2024

CVE-2020-35217: CSRF

First published: Wed Jan 20 2021(Updated: )

Vert.x-Web framework v4.0 milestone 1-4 does not perform a correct CSRF verification. Instead of comparing the CSRF token in the request with the CSRF token in the cookie, it compares the CSRF token in the cookie against a CSRF token that is stored in the session. An attacker does not even need to provide a CSRF token in the request because the framework does not consider it. The cookies are automatically sent by the browser and the verification will always succeed, leading to a successful CSRF attack.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Eclipse Vert.x-Web	=4.0.0-milestone1
Eclipse Vert.x-Web	=4.0.0-milestone2
Eclipse Vert.x-Web	=4.0.0-milestone3
Eclipse Vert.x-Web	=4.0.0-milestone4

Remedy

https://github.com/vert-x3/vertx-web/pull/1613

Never miss a vulnerability like this again

Reference Links

https://github.com/vert-x3/vertx-web/pull/1613

Frequently Asked Questions

What is the vulnerability ID for this vulnerability?
The vulnerability ID is CVE-2020-35217.
What is the severity of CVE-2020-35217?
The severity of CVE-2020-35217 is high.
What is the affected software for CVE-2020-35217?
The affected software for CVE-2020-35217 is Eclipse Vert.x-web version 4.0.0 milestone 1-4.
How does this vulnerability work?
This vulnerability allows an attacker to bypass CSRF verification by comparing the CSRF token in the cookie against a CSRF token that is stored in the session.
Is there a fix available for CVE-2020-35217?
Yes, a fix has been implemented. Please refer to the provided reference for more information.

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collector/mitre-cve
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vendor/eclipse
canonical/eclipse vert.x-web
version/eclipse vert.x-web/4.0.0-milestone1
version/eclipse vert.x-web/4.0.0-milestone2
version/eclipse vert.x-web/4.0.0-milestone3
version/eclipse vert.x-web/4.0.0-milestone4

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