Description

In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted "bin" keys. Existing files could be overwritten depending on the current user permission set.

Remediation

References

https://access.redhat.com/errata/RHSA-2020:0475

https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/

https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7

https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBI/

https://snyk.io/vuln/SNYK-JS-YARN-537806%2C

Related Vulnerabilities

CVE-2021-23460 Vulnerability in npm package min-dash

CVE-2022-31198 Vulnerability in npm package @openzeppelin/contracts

CVE-2017-16010 Vulnerability in npm package i18next

CVE-2022-25349 Vulnerability in maven package org.webjars.npm:materialize-css

CVE-2021-43571 Vulnerability in npm package starkbank-ecdsa

Severity

High

Classification

CWE-59 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Tags

Exploit Third Party Advisory Patch