CVE-2021-29624: Lack of protection against cookie tossing attacks in fastify-csrf
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.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2021-29624?
CVE-2021-29624 is classified as a moderate vulnerability affecting the fastify-csrf plugin before version 3.1.0.
How do I fix CVE-2021-29624?
To fix CVE-2021-29624, upgrade the fastify-csrf plugin to version 3.1.0 or later.
What types of systems are affected by CVE-2021-29624?
CVE-2021-29624 affects applications using the fastify-csrf plugin versions prior to 3.1.0 that are deployed across multiple subdomains.
What kind of attacks does CVE-2021-29624 protect against?
CVE-2021-29624 is designed to protect against Cross-Site Request Forgery (CSRF) attacks.
Is there any workaround for CVE-2021-29624 if I cannot upgrade?
If upgrading is not possible, consider implementing an alternative CSRF defense mechanism until you can update to version 3.1.0 or later.