Skip to content

Arbitrary File Overwrite

Low
andreeleuterio published GHSA-4328-8hgf-7wjr Dec 12, 2019

Package

npm npm (npm )

Affected versions

<6.13.4

Patched versions

6.13.4

Description

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.

Thank you to Daniel Ruf for reporting the issue!

Further information: npm blog post

Severity

Low

CVE ID

CVE-2019-16777

Weaknesses

No CWEs

Credits