6.5
MEDIUM
CVE-2021-29624
Fastify CSRF Double Submit Cookie Vulnerability
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.

INFO

Published Date :

May 19, 2021, 10:15 p.m.

Last Modified :

Oct. 25, 2022, 8:56 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-29624 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fastify fastify-csrf
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-29624.

URL Resource
https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html Third Party Advisory
https://github.com/fastify/csrf/pull/2 Patch Third Party Advisory
https://github.com/fastify/fastify-csrf/pull/51 Patch Third Party Advisory
https://github.com/fastify/fastify-csrf/releases/tag/v3.1.0 Third Party Advisory
https://github.com/fastify/fastify-csrf/security/advisories/GHSA-rc4q-9m69-gqp8 Patch Third Party Advisory
https://owasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-29624 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-29624 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Oct. 25, 2022

    Action Type Old Value New Value
    Added CWE NIST CWE-352
  • Initial Analysis by [email protected]

    May. 26, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html No Types Assigned https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html Third Party Advisory
    Changed Reference Type https://github.com/fastify/csrf/pull/2 No Types Assigned https://github.com/fastify/csrf/pull/2 Patch, Third Party Advisory
    Changed Reference Type https://github.com/fastify/fastify-csrf/pull/51 No Types Assigned https://github.com/fastify/fastify-csrf/pull/51 Patch, Third Party Advisory
    Changed Reference Type https://github.com/fastify/fastify-csrf/releases/tag/v3.1.0 No Types Assigned https://github.com/fastify/fastify-csrf/releases/tag/v3.1.0 Third Party Advisory
    Changed Reference Type https://github.com/fastify/fastify-csrf/security/advisories/GHSA-rc4q-9m69-gqp8 No Types Assigned https://github.com/fastify/fastify-csrf/security/advisories/GHSA-rc4q-9m69-gqp8 Patch, Third Party Advisory
    Changed Reference Type https://owasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf No Types Assigned https://owasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:fastify:fastify-csrf:*:*:*:*:*:node.js:*:* versions up to (excluding) 3.1.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-29624 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.14 }} 0.00%

score

0.48790

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability