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CVE-2021-29624

6.5 · MEDIUM

fastify-csrf is an open-source plugin helps developers protect their Fastify server against CSRF attacks.

Published May 19, 2021CWE-565EPSS 0.83%

Overview

CVE-2021-29624 is a medium-severity vulnerability. It was published on May 19, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

fastify-csrf is an open-source plugin helps developers protect their Fastify server against CSRF attacks. Versions of fastify-csrf prior to 3.1.0 have a "double submit" mechanism using cookies with an application deployed across multiple subdomains, e.g. "heroku"-style platform as a service. Version 3.1.0 of the fastify-csrf fixes it. the vulnerability. The user of the module would need to supply a `userInfo` when generating the CSRF token to fully implement the protection on their end. This is needed only for applications hosted on different subdomains.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.htmlGitHubgithub.com/fastify/csrf/pull/2GitHubgithub.com/fastify/fastify-csrf/pull/51GitHubgithub.com/fastify/fastify-csrf/releases/tag/v3.1.0GitHubgithub.com/fastify/fastify-csrf/security/advisories/GHSA-rc4q-9m69-gqp8Refowasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdfRefcheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.htmlGitHubgithub.com/fastify/csrf/pull/2GitHubgithub.com/fastify/fastify-csrf/pull/51GitHubgithub.com/fastify/fastify-csrf/releases/tag/v3.1.0

How CyberStrike helps

Frequently asked questions

What is CVE-2021-29624?

CVE-2021-29624 is a medium-severity vulnerability. It was published on May 19, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-29624?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-29624?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-29624?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-29624 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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