CVE-2019-16777CWE-22

Arbitrary File Overwrite in npm CLI

High · published December 13, 2019

CVSS v3.1
7.7
EPSS
2%
Percentile
81.8
In the wild
Unconfirmed
What it is

Versions of the npm CLI prior to 6.13.4 are vulnerable to an Arbitrary File Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a serve binary, any subsequent installs of packages that also create a serve binary would overwrite the previous serve binary. This behavior is still allowed in local installations and also through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.02126 · 81.8th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2019-12-13T01:00Z
EPSS history
Timeline
  • 13 DEC 01:00Z
    Arbitrary File Overwrite in npm CLI
    cvelistv5