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Man-in-the-Middle (MitM) Affecting org.webjars.npm:yarn package, versions [,2.0.0-rc.27)

0.0
high

Snyk CVSS

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

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.59% (78th percentile)
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NVD
8.1 high

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  • Snyk ID SNYK-JAVA-ORGWEBJARSNPM-480358
  • published 15 Jul 2019
  • disclosed 12 Jul 2019
  • credit Сковорода Никита Андреевич
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Introduced: 12 Jul 2019

CVE-2019-5448 Open this link in a new tab
CWE-300 Open this link in a new tab

How to fix?

Upgrade org.webjars.npm:yarn to version 2.0.0-rc.27 or higher.

Overview

org.webjars.npm:yarn is a package for dependency management.

Affected versions of this package are vulnerable to Man-in-the-Middle (MitM). Npm credentials such as _authToken were found to be sent over clear text when processing scoped packages that are listed as resolved. This could allow a suitably positioned attacker to eavesdrop and compromise the sent credentials.