tests/nul-in-x509-names.c

   1 /*
   2  * Copyright (C) 2009-2012 Free Software Foundation, Inc.
   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 #include "utils.h"
  34
  35 /* Thanks to Tomas Hoger <thoger@redhat.com> for generating the two
  36    certs that trigger this bug. */
  37
  38 static char badguy_nul_cn_data[] =
  39   "-----BEGIN CERTIFICATE-----\n"
  40   "MIIDjTCCAnWgAwIBAgIBATANBgkqhkiG9w0BAQUFADB0MQswCQYDVQQGEwJHQjES\n"
  41   "MBAGA1UECBMJQmVya3NoaXJlMRAwDgYDVQQHEwdOZXdidXJ5MRcwFQYDVQQKEw5N\n"
  42   "eSBDb21wYW55IEx0ZDELMAkGA1UECxMCQ0ExGTAXBgNVBAMTEE5VTEwtZnJpZW5k\n"
  43   "bHkgQ0EwHhcNMDkwODA0MDczMzQzWhcNMTkwODAyMDczMzQzWjAjMSEwHwYDVQQD\n"
  44   "Exh3d3cuYmFuay5jb20ALmJhZGd1eS5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IB\n"
  45   "DwAwggEKAoIBAQDNJnCWqaZdPpztDwgVWnwXJWhorxO5rUH6ElTihHJ9WNHiQELB\n"
  46   "We0FPaoQU3AAiDp3oMBWnqx9ISpxRFEIvBcH2qijdtxRvBuK9gIaVb9GtERrJ16+\n"
  47   "5ReLVrLGgjYRg6i/9y8NF/bNR7VvK6ZBto0zX+rqi7Ea4pk4/1lbCqFxE8o3P7mw\n"
  48   "HpGayJM1DErgnfTSYcdOW0EKfDFUmdv1Zc6A08ICN2T9VBJ76qyFWVwX4S720Kjy\n"
  49   "0C6UWS/Cpl/aB957LhQH7eQnJDedCS6x+VpIuYAkQ+bLx24139VpNP/m1p7odmZu\n"
  50   "X1kBPJY77HILPB6VD85oE5wi3Ru1RChQSgV/AgMBAAGjezB5MAkGA1UdEwQCMAAw\n"
  51   "LAYJYIZIAYb4QgENBB8WHU9wZW5TU0wgR2VuZXJhdGVkIENlcnRpZmljYXRlMB0G\n"
  52   "A1UdDgQWBBQzFSS+2mY6BovZJzQ6r2JA5JVmXTAfBgNVHSMEGDAWgBQKaTlfnTAE\n"
  53   "GAguAg7m6p2yJvbiajANBgkqhkiG9w0BAQUFAAOCAQEAMmUjH8jZU4SC0ArrFFEk\n"
  54   "A7xsGypa/hvw6GkMKxmGz38ydtgr0s+LxNG2W5xgo5kuknIGzt6L0qLSiXwTqQtO\n"
  55   "vhIJ5dYoOqynJlaUfxPuZH3elGB1wbxVl9SqE44C2LCwcFOuGFPOqrIshT7j8+Em\n"
  56   "8/pc7vh7C8Y5tQQzXq64Xg5mzKjAag3sYMHF2TnqvRuPHH0WOLHoyDcBqkuZ3+QP\n"
  57   "EL5h7prPzScFRgBg2Gp0CDI8i5ABagczDGyQ2+r7ahcadrtzFCfhpH7V3TCxXfIO\n"
  58   "qtSy1Uz2T5EqB/Q3wc9IGcX+fpKWqN9QajGSo7EU/kHMSWKYTerFugUtScMicu9B\n"
  59   "CQ==\n" "-----END CERTIFICATE-----\n";
  60
  61 const gnutls_datum_t badguy_nul_cn = {
  62   (void*)badguy_nul_cn_data, sizeof (badguy_nul_cn_data)
  63 };
  64
  65 static char badguy_nul_san_data[] =
  66   "-----BEGIN CERTIFICATE-----\n"
  67   "MIIDrTCCApWgAwIBAgIBADANBgkqhkiG9w0BAQUFADB0MQswCQYDVQQGEwJHQjES\n"
  68   "MBAGA1UECBMJQmVya3NoaXJlMRAwDgYDVQQHEwdOZXdidXJ5MRcwFQYDVQQKEw5N\n"
  69   "eSBDb21wYW55IEx0ZDELMAkGA1UECxMCQ0ExGTAXBgNVBAMTEE5VTEwtZnJpZW5k\n"
  70   "bHkgQ0EwHhcNMDkwODA0MDY1MzA1WhcNMTkwODAyMDY1MzA1WjAZMRcwFQYDVQQD\n"
  71   "Ew53d3cuYmFkZ3V5LmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB\n"
  72   "AM0mcJappl0+nO0PCBVafBclaGivE7mtQfoSVOKEcn1Y0eJAQsFZ7QU9qhBTcACI\n"
  73   "OnegwFaerH0hKnFEUQi8FwfaqKN23FG8G4r2AhpVv0a0RGsnXr7lF4tWssaCNhGD\n"
  74   "qL/3Lw0X9s1HtW8rpkG2jTNf6uqLsRrimTj/WVsKoXETyjc/ubAekZrIkzUMSuCd\n"
  75   "9NJhx05bQQp8MVSZ2/VlzoDTwgI3ZP1UEnvqrIVZXBfhLvbQqPLQLpRZL8KmX9oH\n"
  76   "3nsuFAft5CckN50JLrH5Wki5gCRD5svHbjXf1Wk0/+bWnuh2Zm5fWQE8ljvscgs8\n"
  77   "HpUPzmgTnCLdG7VEKFBKBX8CAwEAAaOBpDCBoTAJBgNVHRMEAjAAMCwGCWCGSAGG\n"
  78   "+EIBDQQfFh1PcGVuU1NMIEdlbmVyYXRlZCBDZXJ0aWZpY2F0ZTAdBgNVHQ4EFgQU\n"
  79   "MxUkvtpmOgaL2Sc0Oq9iQOSVZl0wHwYDVR0jBBgwFoAUCmk5X50wBBgILgIO5uqd\n"
  80   "sib24mowJgYDVR0RBB8wHYIbd3d3LmJhbmsuY29tAHd3dy5iYWRndXkuY29tMA0G\n"
  81   "CSqGSIb3DQEBBQUAA4IBAQAnbn2zqYZSV2qgxjBsHpQJp2+t/hGfvjKNAXuLlGbX\n"
  82   "fLaxkPzk9bYyvGxxI7EYiNZHvNoHx15GcTrmQG7Bfx1WlnBl2FGp3J6lBgCY5x4Q\n"
  83   "vIK6AOVOog8+7Irdb8bJweztbXwxPmaHR6GLFTwhfuwheD0hcHK6cMNk+B1P2dAn\n"
  84   "PD5+olmuvprTAESncjrjP8ibxY+xlP4AD264FIjxA1CRUa/wHve4WqRXNS3xrciu\n"
  85   "3SlhFH3q0TSAXBv960PcIW3GRPk7VHbEkVuspI5y59gk/6dawO8nw9fk+X9VjQ0w\n"
  86   "7KLZbch29L6UPRIySpFP28PndgdaEpcYtxUAmFkhiT41\n"
  87   "-----END CERTIFICATE-----\n";
  88
  89 const gnutls_datum_t badguy_nul_san = {
  90   (void*)badguy_nul_san_data, sizeof (badguy_nul_san_data)
  91 };
  92
  93 void
  94 doit (void)
  95 {
  96   gnutls_x509_crt_t crt;
  97   int ret;
  98
  99   ret = gnutls_global_init ();
 100   if (ret < 0)
 101     {
 102       fail ("gnutls_global_init");
 103       exit (1);
 104     }
 105
 106   ret = gnutls_x509_crt_init (&crt);
 107   if (ret != 0)
 108     {
 109       fail ("gnutls_x509_crt_init");
 110       exit (1);
 111     }
 112
 113   ret = gnutls_x509_crt_import (crt, &badguy_nul_cn, GNUTLS_X509_FMT_PEM);
 114   if (ret < 0)
 115     {
 116       fail ("gnutls_x509_crt_import");
 117       exit (1);
 118     }
 119
 120   ret = gnutls_x509_crt_check_hostname (crt, "www.bank.com");
 121   if (ret == 0)
 122     {
 123       if (debug)
 124         success ("gnutls_x509_crt_check_hostname OK (NUL-IN-CN)");
 125     }
 126   else
 127     {
 128       fail ("gnutls_x509_crt_check_hostname BROKEN (NUL-IN-CN)");
 129     }
 130
 131   ret = gnutls_x509_crt_import (crt, &badguy_nul_san, GNUTLS_X509_FMT_PEM);
 132   if (ret < 0)
 133     {
 134       fail ("gnutls_x509_crt_import");
 135       exit (1);
 136     }
 137
 138   ret = gnutls_x509_crt_check_hostname (crt, "www.bank.com");
 139   if (ret == 0)
 140     {
 141       if (debug)
 142         success ("gnutls_x509_crt_check_hostname OK (NUL-IN-SAN)");
 143     }
 144   else
 145     {
 146       fail ("gnutls_x509_crt_check_hostname BROKEN (NUL-IN-SAN)");
 147     }
 148
 149   gnutls_x509_crt_deinit (crt);
 150
 151   gnutls_global_deinit ();
 152
 153 }