CVEs-PoC/2018/CVE-2018-7408.md

### [CVE-2018-7408](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7408)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.

### POC

#### Reference
- https://github.com/npm/npm/issues/19883

#### Github
No PoCs found on GitHub currently.