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Improper Certificate Validation Affecting faye-websocket package, versions <0.11.0

0.0
high

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Scope Changed
    Confidentiality High
    Integrity High

    Threat Intelligence

    EPSS 0.2% (59th percentile)
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NVD
8.7 high

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  • Snyk ID SNYK-RUBY-FAYEWEBSOCKET-597162
  • published 2 Aug 2020
  • disclosed 31 Jul 2020
  • credit Unknown
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Introduced: 31 Jul 2020

CVE-2020-15133 Open this link in a new tab
CWE-295 Open this link in a new tab

How to fix?

Upgrade faye-websocket to version 0.11.0 or higher.

Overview

faye-websocket is a Standards-compliant WebSocket server and client.

Affected versions of this package are vulnerable to Improper Certificate Validation in TLS handshakes. The Faye::WebSocket::Client class uses the EM::Connection#start_tls method in EventMachine to implement the TLS handshake whenever a wss: URL is used for the connection. This method does not implement certificate verification by default, meaning that it does not check that the server presents a valid and trusted TLS certificate for the expected hostname.