crumb@0.1.2 vulnerabilities

CSRF crumb generation and validation plugin

Direct Vulnerabilities

Known vulnerabilities in the crumb package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • M
Authentication Bypass

crumb is CSRF crumb generation and validation plugin.

Affected versions of the package are vulnerable to Authentication Bypass. crumb does not validate the hostname while comparing a request origin against the whitelist, but rather compare http protocol alone. This opens a window for attackers to gain information by Man in the Middle (MitM) attacks.

How to fix Authentication Bypass?

Upgrade crumb to version 4.0.2 or higher.

  • M
CORS Token Disclosure

When CORS is enabled on a hapi route handler, it is possible to set a crumb token for a different domain. An attacker would need to have an application consumer visit a site they control, request a route supporting CORS, and then retrieve the token. With this token, they could possibly make requests to non CORS routes as this user.

A configuration and scenario where this would occur is unlikely, as most configurations will set CORS globally (where crumb is not used), or not at all.

Source: Node Security Project

How to fix CORS Token Disclosure?

Update crumb to version 3.0.0 or greater.