fix(components/server): ensure a sane redirect/returnTo query param #4708
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leodido
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jankeromnes
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/werft run 👍 started the job as gitpod-build-leo-safe-redirect-query-param.1 |
AlexTugarev
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@leodido it's awesome that you're on it to fix the situation! 💯
I believe it will be more sustainable to not allow addressing any hosts at all. We should rather rewrite all returnTo=URL with returnTo=PATH with the means of appending the path to the known Gitpod host. This way there is no need to parse user values as URL.
AlexTugarev
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Jul 6, 2021
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@AlexTugarev thanks for your feeback! Would you please take another look at it? :) |
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/werft run 👍 started the job as gitpod-build-leo-safe-redirect-query-param.3 |
AlexTugarev
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Jul 6, 2021
AlexTugarev
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Jul 6, 2021
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/werft run 👍 started the job as gitpod-build-leo-safe-redirect-query-param.4 |
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@leodido could you rebase please? |
Signed-off-by: Leo Di Donato <[email protected]>
Signed-off-by: Leo Di Donato <[email protected]>
Signed-off-by: Leonardo Di Donato <[email protected]>
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Signed-off-by: Leo Di Donato [email protected]
This PR ensures the value of the
redirect(orreturnTo) query parameter is safe.To do so, it strictly checks the value against the allowed URLs (rather than relying on
startsWith).Furthermore, it uses the
URLinterface to ensure URLs are normalized before checking them.On a side note
My first PR! 🎈
Also, my first Typescript code in years and years (literally!) ... 😊
So please be gentle with me 🙇