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authorFilippo Valsorda <filippo@golang.org>2020-05-01 01:14:04 -0400
committerFilippo Valsorda <filippo@golang.org>2020-05-06 16:25:52 +0000
commit21898524f66c075d7cfb64a38f17684140e57675 (patch)
treec67d606c88de9c6c888fd2ea059c2bc4ebcd7e89 /src/net/http/httputil/reverseproxy.go
parentd5734d4f2dd1168dc3df94f2b9912299aea0c0ac (diff)
downloadgo-21898524f66c075d7cfb64a38f17684140e57675.tar.gz
go-21898524f66c075d7cfb64a38f17684140e57675.zip
net/http: use ASCII space trimming throughout
Security hardening against HTTP request smuggling. Thank you to ZeddYu for reporting this issue. Change-Id: I98bd9f8ffe58360fc3bca9dc5d9a106773e55373 Reviewed-on: https://go-review.googlesource.com/c/go/+/231419 Reviewed-by: Katie Hockman <katie@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Diffstat (limited to 'src/net/http/httputil/reverseproxy.go')
-rw-r--r--src/net/http/httputil/reverseproxy.go3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/net/http/httputil/reverseproxy.go b/src/net/http/httputil/reverseproxy.go
index 70de7b107d..3f48fab544 100644
--- a/src/net/http/httputil/reverseproxy.go
+++ b/src/net/http/httputil/reverseproxy.go
@@ -13,6 +13,7 @@ import (
"log"
"net"
"net/http"
+ "net/textproto"
"net/url"
"strings"
"sync"
@@ -387,7 +388,7 @@ func shouldPanicOnCopyError(req *http.Request) bool {
func removeConnectionHeaders(h http.Header) {
for _, f := range h["Connection"] {
for _, sf := range strings.Split(f, ",") {
- if sf = strings.TrimSpace(sf); sf != "" {
+ if sf = textproto.TrimString(sf); sf != "" {
h.Del(sf)
}
}