tests/nul-in-x509-names.c

   1 /*
   2  * Copyright (C) 2009 Free Software Foundation
   3  *
   4  * Author: Simon Josefsson
   5  *
   6  * This file is part of GNUTLS.
   7  *
   8  * GNUTLS is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * GNUTLS is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with GNUTLS; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include <config.h>
  25 #endif
  26
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <gnutls/gnutls.h>
  31 #include <gnutls/x509.h>
  32
  33 /* Thanks to Tomas Hoger <thoger@redhat.com> for generating the two
  34    certs that trigger this bug. */
  35
  36 static char badguy_nul_cn_data[] =
  37   "-----BEGIN CERTIFICATE-----\n"
  38   "MIIDjTCCAnWgAwIBAgIBATANBgkqhkiG9w0BAQUFADB0MQswCQYDVQQGEwJHQjES\n"
  39   "MBAGA1UECBMJQmVya3NoaXJlMRAwDgYDVQQHEwdOZXdidXJ5MRcwFQYDVQQKEw5N\n"
  40   "eSBDb21wYW55IEx0ZDELMAkGA1UECxMCQ0ExGTAXBgNVBAMTEE5VTEwtZnJpZW5k\n"
  41   "bHkgQ0EwHhcNMDkwODA0MDczMzQzWhcNMTkwODAyMDczMzQzWjAjMSEwHwYDVQQD\n"
  42   "Exh3d3cuYmFuay5jb20ALmJhZGd1eS5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IB\n"
  43   "DwAwggEKAoIBAQDNJnCWqaZdPpztDwgVWnwXJWhorxO5rUH6ElTihHJ9WNHiQELB\n"
  44   "We0FPaoQU3AAiDp3oMBWnqx9ISpxRFEIvBcH2qijdtxRvBuK9gIaVb9GtERrJ16+\n"
  45   "5ReLVrLGgjYRg6i/9y8NF/bNR7VvK6ZBto0zX+rqi7Ea4pk4/1lbCqFxE8o3P7mw\n"
  46   "HpGayJM1DErgnfTSYcdOW0EKfDFUmdv1Zc6A08ICN2T9VBJ76qyFWVwX4S720Kjy\n"
  47   "0C6UWS/Cpl/aB957LhQH7eQnJDedCS6x+VpIuYAkQ+bLx24139VpNP/m1p7odmZu\n"
  48   "X1kBPJY77HILPB6VD85oE5wi3Ru1RChQSgV/AgMBAAGjezB5MAkGA1UdEwQCMAAw\n"
  49   "LAYJYIZIAYb4QgENBB8WHU9wZW5TU0wgR2VuZXJhdGVkIENlcnRpZmljYXRlMB0G\n"
  50   "A1UdDgQWBBQzFSS+2mY6BovZJzQ6r2JA5JVmXTAfBgNVHSMEGDAWgBQKaTlfnTAE\n"
  51   "GAguAg7m6p2yJvbiajANBgkqhkiG9w0BAQUFAAOCAQEAMmUjH8jZU4SC0ArrFFEk\n"
  52   "A7xsGypa/hvw6GkMKxmGz38ydtgr0s+LxNG2W5xgo5kuknIGzt6L0qLSiXwTqQtO\n"
  53   "vhIJ5dYoOqynJlaUfxPuZH3elGB1wbxVl9SqE44C2LCwcFOuGFPOqrIshT7j8+Em\n"
  54   "8/pc7vh7C8Y5tQQzXq64Xg5mzKjAag3sYMHF2TnqvRuPHH0WOLHoyDcBqkuZ3+QP\n"
  55   "EL5h7prPzScFRgBg2Gp0CDI8i5ABagczDGyQ2+r7ahcadrtzFCfhpH7V3TCxXfIO\n"
  56   "qtSy1Uz2T5EqB/Q3wc9IGcX+fpKWqN9QajGSo7EU/kHMSWKYTerFugUtScMicu9B\n"
  57   "CQ==\n" "-----END CERTIFICATE-----\n";
  58
  59 const gnutls_datum_t badguy_nul_cn = {
  60   badguy_nul_cn_data, sizeof (badguy_nul_cn_data)
  61 };
  62
  63 static char badguy_nul_san_data[] =
  64   "-----BEGIN CERTIFICATE-----\n"
  65   "MIIDrTCCApWgAwIBAgIBADANBgkqhkiG9w0BAQUFADB0MQswCQYDVQQGEwJHQjES\n"
  66   "MBAGA1UECBMJQmVya3NoaXJlMRAwDgYDVQQHEwdOZXdidXJ5MRcwFQYDVQQKEw5N\n"
  67   "eSBDb21wYW55IEx0ZDELMAkGA1UECxMCQ0ExGTAXBgNVBAMTEE5VTEwtZnJpZW5k\n"
  68   "bHkgQ0EwHhcNMDkwODA0MDY1MzA1WhcNMTkwODAyMDY1MzA1WjAZMRcwFQYDVQQD\n"
  69   "Ew53d3cuYmFkZ3V5LmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB\n"
  70   "AM0mcJappl0+nO0PCBVafBclaGivE7mtQfoSVOKEcn1Y0eJAQsFZ7QU9qhBTcACI\n"
  71   "OnegwFaerH0hKnFEUQi8FwfaqKN23FG8G4r2AhpVv0a0RGsnXr7lF4tWssaCNhGD\n"
  72   "qL/3Lw0X9s1HtW8rpkG2jTNf6uqLsRrimTj/WVsKoXETyjc/ubAekZrIkzUMSuCd\n"
  73   "9NJhx05bQQp8MVSZ2/VlzoDTwgI3ZP1UEnvqrIVZXBfhLvbQqPLQLpRZL8KmX9oH\n"
  74   "3nsuFAft5CckN50JLrH5Wki5gCRD5svHbjXf1Wk0/+bWnuh2Zm5fWQE8ljvscgs8\n"
  75   "HpUPzmgTnCLdG7VEKFBKBX8CAwEAAaOBpDCBoTAJBgNVHRMEAjAAMCwGCWCGSAGG\n"
  76   "+EIBDQQfFh1PcGVuU1NMIEdlbmVyYXRlZCBDZXJ0aWZpY2F0ZTAdBgNVHQ4EFgQU\n"
  77   "MxUkvtpmOgaL2Sc0Oq9iQOSVZl0wHwYDVR0jBBgwFoAUCmk5X50wBBgILgIO5uqd\n"
  78   "sib24mowJgYDVR0RBB8wHYIbd3d3LmJhbmsuY29tAHd3dy5iYWRndXkuY29tMA0G\n"
  79   "CSqGSIb3DQEBBQUAA4IBAQAnbn2zqYZSV2qgxjBsHpQJp2+t/hGfvjKNAXuLlGbX\n"
  80   "fLaxkPzk9bYyvGxxI7EYiNZHvNoHx15GcTrmQG7Bfx1WlnBl2FGp3J6lBgCY5x4Q\n"
  81   "vIK6AOVOog8+7Irdb8bJweztbXwxPmaHR6GLFTwhfuwheD0hcHK6cMNk+B1P2dAn\n"
  82   "PD5+olmuvprTAESncjrjP8ibxY+xlP4AD264FIjxA1CRUa/wHve4WqRXNS3xrciu\n"
  83   "3SlhFH3q0TSAXBv960PcIW3GRPk7VHbEkVuspI5y59gk/6dawO8nw9fk+X9VjQ0w\n"
  84   "7KLZbch29L6UPRIySpFP28PndgdaEpcYtxUAmFkhiT41\n"
  85   "-----END CERTIFICATE-----\n";
  86
  87 const gnutls_datum_t badguy_nul_san = {
  88   badguy_nul_san_data, sizeof (badguy_nul_san_data)
  89 };
  90
  91 int
  92 main (void)
  93 {
  94   gnutls_x509_crt_t crt;
  95   int ret;
  96   int exit_code = 0;
  97
  98   ret = gnutls_global_init ();
  99   if (ret < 0)
 100     {
 101       puts ("gnutls_global_init");
 102       return 1;
 103     }
 104
 105   ret = gnutls_x509_crt_init (&crt);
 106   if (ret != 0)
 107     {
 108       puts ("gnutls_x509_crt_init");
 109       return 1;
 110     }
 111
 112   ret = gnutls_x509_crt_import (crt, &badguy_nul_cn, GNUTLS_X509_FMT_PEM);
 113   if (ret < 0)
 114     {
 115       puts ("gnutls_x509_crt_import");
 116       return 1;
 117     }
 118
 119   ret = gnutls_x509_crt_check_hostname (crt, "www.bank.com");
 120   if (ret == 0)
 121     {
 122       puts ("gnutls_x509_crt_check_hostname OK (NUL-IN-CN)");
 123     }
 124   else
 125     {
 126       puts ("gnutls_x509_crt_check_hostname BROKEN (NUL-IN-CN)");
 127       exit_code = 1;
 128     }
 129
 130   ret = gnutls_x509_crt_import (crt, &badguy_nul_san, GNUTLS_X509_FMT_PEM);
 131   if (ret < 0)
 132     {
 133       puts ("gnutls_x509_crt_import");
 134       return 1;
 135     }
 136
 137   ret = gnutls_x509_crt_check_hostname (crt, "www.bank.com");
 138   if (ret == 0)
 139     {
 140       puts ("gnutls_x509_crt_check_hostname OK (NUL-IN-SAN)");
 141     }
 142   else
 143     {
 144       puts ("gnutls_x509_crt_check_hostname BROKEN (NUL-IN-SAN)");
 145       exit_code = 1;
 146     }
 147
 148   gnutls_x509_crt_deinit (crt);
 149
 150   gnutls_global_deinit ();
 151
 152   return exit_code;
 153 }