CVE-2017-16222 Directory Traversal in elding
An attacker can read arbitrary files with extensions from the server filesystem via directory traversal in the elding web server library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-16222?
CVE-2017-16222 is a medium-severity path traversal vulnerability in HackerOne elding node module, published on 7 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
elding is a simple web server. elding is vulnerable to a directory traversal issue, allowing an attacker to access the filesystem by placing "../" in the url. The files accessible, however, are limited to files with a file extension. Sending a GET request to /../../../etc/passwd, for example, will return a 404 on etc/passwd/index.js.
Weakness: CWE-22
Which versions are affected by CVE-2017-16222?
2 open source packages ship an affected version, including elding. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
elding npm | All versions to 1.0.0 | None |
elding npm | All versions to 1.0.0 | None |
Products include Elding Project Elding.
How do I fix CVE-2017-16222?
No fix has been published for CVE-2017-16222 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2017-16222 being exploited?
There is no known exploitation of CVE-2017-16222 in the wild and no public exploit code.
Sources
Also known as GHSA-rp28-29ch-gh92.