Mercurial > hg > nginx
changeset 7893:7a6afd584eb4
Disabled HTTP/1.0 requests with Transfer-Encoding.
The latest HTTP/1.1 draft describes Transfer-Encoding in HTTP/1.0 as having
potentially faulty message framing as that could have been forwarded without
handling of the chunked encoding, and forbids processing subsequest requests
over that connection: https://github.com/httpwg/http-core/issues/879.
While handling of such requests is permitted, the most secure approach seems
to reject them.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Mon, 09 Aug 2021 18:12:12 +0300 |
parents | 34a3a1a2d197 |
children | 37be19a3c0ee |
files | src/http/ngx_http_request.c |
diffstat | 1 files changed, 8 insertions(+), 0 deletions(-) [+] |
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line diff
--- a/src/http/ngx_http_request.c +++ b/src/http/ngx_http_request.c @@ -1983,6 +1983,14 @@ ngx_http_process_request_header(ngx_http } if (r->headers_in.transfer_encoding) { + if (r->http_version < NGX_HTTP_VERSION_11) { + ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, + "client sent HTTP/1.0 request with " + "\"Transfer-Encoding\" header"); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + return NGX_ERROR; + } + if (r->headers_in.transfer_encoding->value.len == 7 && ngx_strncasecmp(r->headers_in.transfer_encoding->value.data, (u_char *) "chunked", 7) == 0)