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Cross-site Request Forgery (CSRF) Affecting rack package, versions <2.1.4 >=2.2.0, <2.2.3

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.24% (65th percentile)
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NVD
7.5 high
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SUSE
6.8 medium
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Red Hat
7.5 high

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  • Snyk ID SNYK-RUBY-RACK-572377
  • published 16 Jun 2020
  • disclosed 16 Jun 2020
  • credit Unknown
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Introduced: 16 Jun 2020

CVE-2020-8184 Open this link in a new tab
CWE-352 Open this link in a new tab

How to fix?

Upgrade rack to version 2.1.4, 2.2.3 or higher.

Overview

rack is a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single method call.

Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF). It is possible to forge a secure or host-only cookie prefix in Rack using an arbitrary cookie write by using URL encoding (percent-encoding) on the name of the cookie. This could result in an application that is dependent on this prefix to determine if a cookie is safe to process being manipulated into processing an insecure or cross-origin request.

References