PT-2020-19967 · Facebook+1 · Yarn+1

Published 2020-02-24 · Updated 2022-02-09 · CVE-2020-8131

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Yarn versions prior to 1.22.0

Description The issue allows attackers to write to any path on the filesystem, potentially leading to arbitrary code execution by forcing the user to install a malicious package.

Recommendations For versions prior to 1.22.0, update to version 1.22.0 or later to resolve the issue.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

ALT-PU-2020-1415

ALT-PU-2020-1988

CVE-2020-8131

GHSA-8MFC-V7WV-P62G

Affected Products

Alt Linux

Yarn

References · 10

• 🔥 https://hackerone.com/reports/730239 · Exploit
• https://github.com/yarnpkg/yarn/pull/7831 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-8131 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-8131 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-8131 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-8131 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-8131 · Security Note
• https://osv.dev/vulnerability/CVE-2020-8131 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-8mfc-v7wv-p62g · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-8131 · Vendor Advisory