fixed_remote_auth=x';id>/var/lib/mysql/MDEV40056_MARKER;sleep3;#
fixed_result=REJECTED
  if (remote_auth())
  {
    /* auth is like localhost:ecee4512990b6a685b5d8df250cb5028 */
    std::string auth= remote_auth();
    std::string r_user = auth.substr(0, auth.find(":"));
    std::string r_pw = auth.substr(auth.find(":")+1, auth.size());
    if (!r_user.empty() &&
        wsrep_check_request_str(r_user.c_str(), wsrep_filename_char, true))
    {
      WSREP_ERROR("Bad remote auth string. SST canceled.");
      return WSREP_CB_FAILURE;
    }
    if (!r_pw.empty() &&
        wsrep_check_request_str(r_pw.c_str(), wsrep_filename_char, true))
    {
      WSREP_ERROR("Bad remote auth string. SST canceled.");
      return WSREP_CB_FAILURE;
    }
  }
        CN_option=",commonname=''"