Werk #11607: Improve GUI security: Prevent changing content type
Component | User interface |
Title | Improve GUI security: Prevent changing content type |
Date | Nov 19, 2020 |
Checkmk Edition | Checkmk Raw (CRE) |
Checkmk Version | 2.0.0b1 |
Level | Trivial Change |
Class | Security Fix |
Compatibility | Compatible - no manual interaction needed |
All web pages served by Checkmk will now have the HTTP header Header always set X-Content-Type-Options: "nosniff" set. It prevents a client from guessing the content type based on the provided file. This is a way to opt out of MIME type sniffing, or, in other words, to say that the MIME types are deliberately configured.
Further information can be found here:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options https://www.chromium.org/Home/chromium-security/corb-for-developers