CVE-2019-16776
Vulnerability Summary
Timeline
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.
CVSS Metrics
- v3.1•HIGH•Score: 7.7CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
- v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- v2.0•MEDIUM•Score: 5.5AV:N/AC:L/Au:S/C:P/I:P/A:N
EPSS Trends
Current EPSS score: 1.23%• Percentile: 79%
Techniques & Countermeasures
- CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Affected Systems
- fedoraproject•fedora
31
- npm•cli
≥ < 6.13.3, < 6.13.3
- Npm•npm
< 6.13.3
- npmjs•npm
< 6.13.3
- opensuse•leap
15.1
- oracle•graalvm
19.3.0.2
- redhat•enterprise_linux
8.0
- redhat•enterprise_linux_eus
8.1
References (14)
- https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cli
- https://github.com/npm/cli/security/advisories/GHSA-x8qc-rrcw-4r46
- https://www.oracle.com/security-alerts/cpujan2020.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z36UKPO5F3PQ3Q2POMF5LEKXWAH5RUFP/
- 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://nvd.nist.gov/vuln/detail/CVE-2019-16776
- https://github.com/advisories/GHSA-x8qc-rrcw-4r46
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z36UKPO5F3PQ3Q2POMF5LEKXWAH5RUFP
- https://www.npmjs.com/advisories/1436