Protect WebSocket endpoints from untrusted origin requests#134
Merged
krksgbr merged 1 commit intodividat:mainfrom Apr 22, 2024
Merged
Protect WebSocket endpoints from untrusted origin requests#134krksgbr merged 1 commit intodividat:mainfrom
krksgbr merged 1 commit intodividat:mainfrom
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We previously added support for adding Private Network Access and CORS headers only for a whitelist of permissible origins. This protects browser users running the driver locally against abuse from third-party websites, which could make HTTP requests to the driver at the loopback address. This commit extends this protection to WebSocket endpoints, for which browsers do not currently perform pre-flight requests. We therefore explicitly deny all requests from unknown origins. This change prepares for the driver gaining the capability of triggering firmware updates in connected devices.
krksgbr
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Apr 22, 2024
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It looks good and works as expected.
How I tested:
- I ran the tests with a build from
mainand the unknown origin tests failed, as expected. - I also tested in the browser with the driver started with
./bin/dividat-driver --permissible-origin "http://orig.in"and all requests were rejected, as expected. - When the driver is started with no arguments, connections continue to work as before.
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We previously added support for adding Private Network Access and CORS headers only for a whitelist of permissible origins. This protects browser users running the driver locally against abuse from third-party websites, which could make HTTP requests to the driver at the loopback address.
This commit extends this protection to WebSocket endpoints, for which browsers do not currently perform pre-flight requests. We therefore explicitly deny all requests from unknown origins.
This change prepares for the driver gaining the capability of triggering firmware updates in connected devices (#127).
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