CVE-2019-10773

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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023	Exploit Third Party Advisory
https://snyk.io/vuln/SNYK-JS-YARN-537806,	Broken Link
https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7	Patch Third Party Advisory
https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/	Exploit Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBI/
https://access.redhat.com/errata/RHSA-2020:0475

Configurations

Configuration 1 (hide)

cpe:2.3:a:yarnpkg:yarn:*:*:*:*:*:*:*:*

Information

Published : 2019-12-16 12:15

Updated : 2020-02-07 20:15

NVD link : CVE-2019-10773

Mitre link : CVE-2019-10773

JSON object : View

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

Products Affected

yarnpkg

yarn

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7.8 /10