On 09/15/2011 09:55 PM, [email protected] wrote:
> Author: sf
> Date: Thu Sep 15 19:55:27 2011
> New Revision: 1171250
> 
> URL: http://svn.apache.org/viewvc?rev=1171250&view=rev
> Log:
> use random value as multipart range boundary to prevent leaking information
> about the used MPM
> 
> Modified:
>     httpd/httpd/trunk/modules/http/byterange_filter.c
> 
> Modified: httpd/httpd/trunk/modules/http/byterange_filter.c
> URL: 
> http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/http/byterange_filter.c?rev=1171250&r1=1171249&r2=1171250&view=diff
> ==============================================================================
> --- httpd/httpd/trunk/modules/http/byterange_filter.c (original)
> +++ httpd/httpd/trunk/modules/http/byterange_filter.c Thu Sep 15 19:55:27 2011
> @@ -442,7 +442,6 @@ AP_CORE_DECLARE_NONSTD(apr_status_t) ap_
>      apr_status_t rv;
>      int found = 0;
>      int num_ranges;
> -    char *boundary = NULL;
>      char *bound_head = NULL;
>      apr_array_header_t *indexes;
>      indexes_t *idx;
> @@ -505,17 +504,15 @@ AP_CORE_DECLARE_NONSTD(apr_status_t) ap_
>      if (num_ranges > 1) {
>          /* Is ap_make_content_type required here? */
>          const char *orig_ct = ap_make_content_type(r, r->content_type);
> -        boundary = apr_psprintf(r->pool, "%" APR_UINT64_T_HEX_FMT "%lx",
> -                                (apr_uint64_t)r->request_time, c->id);
>  
>          ap_set_content_type(r, apr_pstrcat(r->pool, "multipart",
>                                             use_range_x(r) ? "/x-" : "/",
>                                             "byteranges; boundary=",
> -                                           boundary, NULL));
> +                                           ap_multipart_boundary, NULL));

Isn't it an issue that we now always use the same boundary value?

Regards

RĂ¼diger

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