Vulnerability Details : CVE-2019-16776
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.
Vulnerability category: Directory traversal
Exploit prediction scoring system (EPSS) score for CVE-2019-16776
Probability of exploitation activity in the next 30 days: 0.11%
CVSS scores for CVE-2019-16776
|Base Score||Base Severity||CVSS Vector||Exploitability Score||Impact Score||Source|
CWE ids for CVE-2019-16776
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.
References for CVE-2019-16776
- https://lists.fedoraproject.org/archives/list/[email protected]/message/Z36UKPO5F3PQ3Q2POMF5LEKXWAH5RUFP/
Third Party Advisory
Mailing List;Third Party Advisory
Products affected by CVE-2019-16776