CVE-2017-16217 Directory Traversal in fbr-client
An attacker can read arbitrary files from the server filesystem by exploiting a directory traversal vulnerability in the fbr-client Node.js module.
- 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-2017-16217?
CVE-2017-16217 is a high-severity path traversal vulnerability in HackerOne fbr-client 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
fbr-client sends files through sockets via socket.io and webRTC. fbr-client is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.
Weakness: CWE-22
Which versions are affected by CVE-2017-16217?
2 open source packages ship an affected version, including fbr-client. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
fbr-client npm | All versions to 1.0.3 | None |
fbr-client npm | All versions to 1.0.3 | None |
Products include Webrtc-Experiment Fbr-Client.
How do I fix CVE-2017-16217?
No fix has been published for CVE-2017-16217 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-2017-16217 being exploited?
There is no known exploitation of CVE-2017-16217 in the wild and no public exploit code.
Sources
Also known as GHSA-qmhf-qg6f-pc4v.