CVE-2017-16224 Open Redirect in st
An attacker can craft requests to redirect users to external domains when the module serves files from the root directory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-16224?
CVE-2017-16224 is a medium-severity vulnerability in HackerOne st node module, published on 7 Jun 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
st is a module for serving static files. An attacker is able to craft a request that results in an HTTP 301 (redirect) to an entirely different domain. A request for: http://some.server.com//nodesecurity.org/%2e%2e would result in a 301 to //nodesecurity.org/%2e%2e which most browsers treat as a proper redirect as // is translated into the current schema being used. Mitigating factor: In order for this to work, st must be serving from the root of a server (/) rather than the typical sub directory (/static/) and the redirect URL will end with some form of URL encoded .. ("%2e%2e", "%2e.", ".%2e").
Weakness: CWE-601
Which versions are affected by CVE-2017-16224?
2 open source packages ship an affected version, including st. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
st npm | All versions | 1.2.2 |
st npm | All versions | 1.2.2 |
Products include St Project St.
How do I fix CVE-2017-16224?
Upgrade st to 1.2.2 or later.
Is CVE-2017-16224 being exploited?
There is no known exploitation of CVE-2017-16224 in the wild and no public exploit code.
Sources
Also known as GHSA-72fg-jqhx-c68p.