CVE-2016-10549

low-risk
Published 2018-05-31

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.

Do I need to act?

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0.25% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.4/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Sails

Affected Vendors

Sailsjs

References (6)

Vendor Advisory http://sailsjs.org/documentation/concepts/security/cors
Vendor Advisory http://sailsjs.org/documentation/reference/configuration/sails-config-cors
Third Party Advisory https://nodesecurity.io/advisories/148
Vendor Advisory http://sailsjs.org/documentation/concepts/security/cors
Vendor Advisory http://sailsjs.org/documentation/reference/configuration/sails-config-cors
Third Party Advisory https://nodesecurity.io/advisories/148
20
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal