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fix(Headers): don't forward secure headers on protocol change #1599

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max-stytch
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Purpose

Resolves https://www.huntr.dev/bounties/db31e05b-ff10-4057-81a3-37445bf161cd/ by validating that the URL protocol remains the same when determining whether to send secure headers on a redirect.
This prevents MITM attacks from sniffing secure headers when a redirect downgrades a https:// to a http://

Changes

Adds an additional check to the redirect follow step to determine whether to send secure headers or not.

Additional information


  • I updated readme
  • I added unit test(s)

@jimmywarting jimmywarting requested review from gr2m and LinusU July 12, 2022 16:32
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@gr2m gr2m left a comment

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great PR 👍🏼

@jimmywarting jimmywarting merged commit e87b093 into node-fetch:main Jul 18, 2022
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🎉 This PR is included in version 3.2.9 🎉

The release is available on:

Your semantic-release bot 📦🚀

@victal
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victal commented Jul 19, 2022

Sorry if this is the wrong place to ask, but since this PR is a fix for a security issue, will (or should) it be backported to the 2.x branch as it was done for #1449?

Is this done automatically or should I (or someone else interested in the fix) open another PR targeting the 2.x branch for that?

victal pushed a commit to victal/node-fetch that referenced this pull request Jul 19, 2022
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if you @victal could create a PR to the v2 branch then that would be grate!

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victal commented Jul 19, 2022

Just created #1605 for it, thanks!

jimmywarting pushed a commit that referenced this pull request Jul 19, 2022
backport for #1599 to the 2.x branch

Co-authored-by: Guilherme Victal <[email protected]>
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5 participants