[release-branch.go1.24] net/http: persist header stripping across repeated redirects
When an HTTP redirect changes the host of a request, we drop
sensitive headers such as Authorization from the redirected request.
Fix a bug where a chain of redirects could result in sensitive
headers being sent to the wrong host:
1. request to a.tld with Authorization header
2. a.tld redirects to b.tld
3. request to b.tld with no Authorization header
4. b.tld redirects to b.tld
3. request to b.tld with Authorization header restored
Thanks to Kyle Seely for reporting this issue.
For #70530
Fixes #71212
Fixes CVE-2024-45336
Change-Id: Ia58a2e10d33d6b0cc7220935e771450e5c34de72
Reviewed-on: https://go-internal-review.googlesource.com/c/go/+/1641
Reviewed-by: Roland Shoemaker <bracewell@google.com>
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Commit-Queue: Roland Shoemaker <bracewell@google.com>
(cherry picked from commit
2889169b87a61f1218a02994feb80fd3d8bfa87c)
Reviewed-on: https://go-internal-review.googlesource.com/c/go/+/1766
Reviewed-on: https://go-review.googlesource.com/c/go/+/643100
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>