CVE-2021-29624
Lack of protection against cookie tossing attacks in fastify-csrf
- State
- Published
- Severity
- 6.5 Medium
- Published
- May 19, 2021
- Updated
- Aug 3, 2024
- Reserved
- Mar 30, 2021
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N | GitHub_M |
Weaknesses
- CWE-565 Reliance on Cookies without Validation and Integrity Checking
Affected Products
| Product | Versions |
|---|---|
fastify-csrffastify |
|
References
- https://github.com/fastify/fastify-csrf/security/advisories/GHSA-rc4q-9m69-gqp8
- https://github.com/fastify/csrf/pull/2
- https://github.com/fastify/fastify-csrf/pull/51
- https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html
- https://github.com/fastify/fastify-csrf/releases/tag/v3.1.0
- https://owasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf
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