CVE-2016-10549 Sails before 0.12.7 vulnerable to Broken CORS
Attackers can bypass Same Origin Policy via reflected CORS headers in Sails.js when specific non-default configurations are enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2016-10549?
CVE-2016-10549 is a medium-severity vulnerability in HackerOne sails node module, published on 31 May 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Sails is an MVC style framework for building realtime web applications. Version 0.12.7 and lower have an issue with the CORS configuration where the value of the origin header is reflected as the value for the Access-Control-Allow-Origin header. This would allow an attacker to make AJAX requests to vulnerable hosts through cross site scripting or a malicious HTML Document, effectively bypassing the Same Origin Policy. Note that this is only an issue when `allRoutes` is set to `true` and `origin` is set to `*` or left commented out in the sails CORS config file. The problem can be compounded when the cors `credentials` setting is not provided. At that point authenticated cross domain requests are possible.
Which versions are affected by CVE-2016-10549?
2 open source packages ship an affected version, including sails. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
sails npm | All versions | 0.12.7 |
sails npm | All versions | 0.12.7 |
Products include Sailsjs Sails.
How do I fix CVE-2016-10549?
Upgrade sails to 0.12.7 or later.
Is CVE-2016-10549 being exploited?
There is no known exploitation of CVE-2016-10549 in the wild and no public exploit code.
Other vulnerabilities in HackerOne sails node module
Sources
Also known as GHSA-qmv4-jgp7-mf68.