THREATPORT/VULNERABILITY/CVE-2019-16776
HIGH SEVERITY

CVE-2019-16776

Npm vulnerability

CVSS
7.7
EPSS
3.3%
EPSS pct
87th
Exploited
No known
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.
Affected vendor
Npmjs
Affected product
Npm
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Weakness type (CWE)
Published
2019-12-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring low privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2019-16776

  • Confirm whether Npmjs Npm is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-16776.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-16776

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-16776 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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