Unauthorized File Access in npm CLI before before version 6.13.3
CVE-2019-16776

7.7HIGH

Key Information:

Vendor

Npm

Status
Cli
Vendor
CVE Published:
13 December 2019

What is 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.

Affected Version(s)

cli < 6.13.3 < 6.13.3

References

https://blog.npmjs.org/post/189618601100/binary-planting-...
x_refsource_MISC
https://github.com/npm/cli/security/advisories/GHSA-x8qc-...
x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpujan2020.html
x_refsource_MISC

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.