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Cross-site Request Forgery in fastify-csrf

High severity GitHub Reviewed Published Jan 20, 2021 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

npm fastify-csrf (npm)

Affected versions

< 3.0.0

Patched versions

3.0.0

Description

The package fastify-csrf before 3.0.0 has a set of issues that affect its ability to do CSRF protection.

  1. The generated cookie used insecure defaults, and did not have the httpOnly flag on: cookieOpts: { path: '/', sameSite: true }
  2. The CSRF token was available in the GET query parameter

References

Published by the National Vulnerability Database Jan 19, 2021
Reviewed Jan 20, 2021
Published to the GitHub Advisory Database Jan 20, 2021
Last updated Jan 27, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

0.212%
(59th percentile)

Weaknesses

CVE ID

CVE-2020-28482

GHSA ID

GHSA-49wp-qq6x-g2rf

Source code

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