CVE-2019-16776

MEDIUM

Description

Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. It fails to prevent access to folders outside of the intended node_modules folder through the bin field. A properly constructed entry in the package.json bin field would allow a package publisher to modify and/or gain access to arbitrary files on a user's system when the package is installed. This behavior is still possible through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.html

https://access.redhat.com/errata/RHEA-2020:0330

https://access.redhat.com/errata/RHSA-2020:0573

https://access.redhat.com/errata/RHSA-2020:0579

https://access.redhat.com/errata/RHSA-2020:0597

https://access.redhat.com/errata/RHSA-2020:0602

https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cli

https://github.com/npm/cli/security/advisories/GHSA-x8qc-rrcw-4r46

https://lists.fedoraproject.org/archives/list/[email protected]/message/Z36UKPO5F3PQ3Q2POMF5LEKXWAH5RUFP/

https://www.oracle.com/security-alerts/cpujan2020.html

Details

Source: MITRE

Published: 2019-12-13

Updated: 2020-10-07

Type: CWE-22

Risk Information

CVSS v2.0

Base Score: 5.5

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3.0

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Impact Score: 5.2

Exploitability Score: 2.8

Severity: HIGH