Man-in-the-Middle (MitM) Affecting yarn package, versions <1.17.3
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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Test your applications- Snyk ID SNYK-JS-YARN-451571
- published 15 Jul 2019
- disclosed 12 Jul 2019
- credit Сковорода Никита Андреевич
Introduced: 12 Jul 2019
CVE-2019-5448 Open this link in a new tabHow to fix?
Upgrade yarn
to version 1.17.3 or higher.
Overview
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.