CVE-2021-29624 – fastify-csrf

Package

Manager: npm
Name: fastify-csrf
Vulnerable Version: >=0 <3.1.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00254 pctl0.48543

Details

Lack of protection against cookie tossing attacks in fastify-csrf ### Impact Users that used fastify-csrf with the "double submit" mechanism using cookies with an application deployed across multiple subdomains, e.g. "heroku"-style platform as a service. ### Patches Version 3.1.0 of the fastify-csrf fixes it. See https://github.com/fastify/fastify-csrf/pull/51 and https://github.com/fastify/csrf/pull/2. 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. ### Workarounds None available. ### References 1. https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html 2. https://owasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf ### Credits This vulnerability was found by Xhelal Likaj <xhelallikaj20@gmail.com>. ### For more information If you have any questions or comments about this advisory: * Open an issue in [fastify-csrf](https://github.com/fastify/fastify-csrf) * Email us at [hello@matteocollina.com](mailto:hello@matteocollina.com)

Metadata

Created: 2021-05-17T20:53:30Z
Modified: 2021-05-17T20:29:48Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-rc4q-9m69-gqp8/GHSA-rc4q-9m69-gqp8.json
CWE IDs: ["CWE-352", "CWE-565"]
Alternative ID: GHSA-rc4q-9m69-gqp8
Finding: F007
Auto approve: 1