diff options
| author | Daniel Stenberg <daniel@haxx.se> | 2018-01-19 13:19:25 +0100 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2018-01-22 10:00:00 +0100 |
| commit | af32cd3859336ab963591ca0df9b1e33a7ee066b (patch) | |
| tree | ae91ca52a3cbbfabe89c74dda181abbbc40c1150 /docs | |
| parent | 993dd5651a6c853bfe3870f6a69c7b329fa4e8ce (diff) | |
http: prevent custom Authorization headers in redirects
... unless CURLOPT_UNRESTRICTED_AUTH is set to allow them. This matches how
curl already handles Authorization headers created internally.
Note: this changes behavior slightly, for the sake of reducing mistakes.
Added test 317 and 318 to verify.
Reported-by: Craig de Stigter
Bug: https://curl.haxx.se/docs/adv_2018-b3bf.html
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/libcurl/opts/CURLOPT_HTTPHEADER.3 | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 b/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 index c5ccb1a53..c9f29e393 100644 --- a/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 +++ b/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 @@ -5,7 +5,7 @@ .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * -.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al. +.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms @@ -77,6 +77,16 @@ the headers. They may be private or otherwise sensitive to leak. Use \fICURLOPT_HEADEROPT(3)\fP to make the headers only get sent to where you intend them to get sent. + +Custom headers are sent in all requests done by the easy handles, which +implies that if you tell libcurl to follow redirects +(\fBCURLOPT_FOLLOWLOCATION(3)\fP), the same set of custom headers will be sent +in the subsequent request. Redirects can of course go to other hosts and thus +those servers will get all the contents of your custom headers too. + +Starting in 7.58.0, libcurl will specifically prevent "Authorization:" headers +from being sent to other hosts than the first used one, unless specifically +permitted with the \fBCURLOPT_UNRESTRICTED_AUTH(3)\fP option. .SH DEFAULT NULL .SH PROTOCOLS |