CVE-2018-3712 Directory Traversal in serve
A path traversal vulnerability in the serve Node.js module allows attackers to read arbitrary files from the server filesystem.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-3712?
CVE-2018-3712 is a medium-severity path traversal vulnerability in HackerOne serve node module, published on 7 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
serve node module before 6.4.9 suffers from a Path Traversal vulnerability due to not handling %2e (.) and %2f (/) and allowing them in paths, which allows a malicious user to view the contents of any directory with known path.
Weakness: CWE-22
Which versions are affected by CVE-2018-3712?
2 open source packages ship an affected version, including serve. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
serve npm | All versions | 6.4.9 |
serve npm | All versions | 6.4.9 |
Products include Zeit Serve.
How do I fix CVE-2018-3712?
Upgrade serve to 6.4.9 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2018-3712 being exploited?
There is no known exploitation of CVE-2018-3712 in the wild and no public exploit code.
Other vulnerabilities in HackerOne serve node module
Sources
Also known as GHSA-q2qh-cgc2-qhr3.