Huawei Data Communication: Read telnet server status

# Copyright (C) 2020 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.150239");
  script_version("2021-08-24T08:31:17+0000");
  script_tag(name:"last_modification", value:"2021-08-24 08:31:17 +0000 (Tue, 24 Aug 2021)");
  script_tag(name:"creation_date", value:"2020-05-14 07:29:52 +0000 (Thu, 14 May 2020)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:S/C:N/I:N/A:N");
  script_tag(name:"qod", value:"97");

  script_name("Huawei Data Communication: Read telnet server status");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Policy");
  script_dependencies("compliance_tests.nasl", "gb_huawei_vrp_network_device_consolidation.nasl");
  script_mandatory_keys("Compliance/Launch");
  script_exclude_keys("huawei/vrp/yunshan/detected");

  script_tag(name:"summary", value:"Get the current Telnet server configuration of the VRP device.

Note: This script only stores information for other Policy Controls.");

  exit(0);
}

include("ssh_func.inc");

if(!get_kb_item("huawei/vrp/detected")){
  set_kb_item(name:"Policy/vrp/installed/ERROR", value:TRUE);
  exit(0);
}

if(!major_version = get_kb_item("huawei/vrp/ssh-login/major_version")){
  set_kb_item(name:"Policy/vrp/current_configuration/telnet_status/major_version/ERROR", value:TRUE);
  exit(0);
}

if(!get_kb_item("login/SSH/success") || !sock = ssh_login_or_reuse_connection()){
  set_kb_item(name:"Policy/vrp/ssh/ERROR", value:TRUE);
  exit(0);
}

if(major_version =~ "^5")
  cmd = "display telnet server status";
else
  cmd = "display telnet server";

ret = ssh_cmd(socket:sock, cmd:cmd, return_errors:FALSE, pty:TRUE, nosh:TRUE, timeout:20,
              retry:10, force_reconnect:TRUE, clear_buffer:TRUE);

if(!ret){
  set_kb_item(name:"Policy/vrp/current_configuration/telnet_status/ERROR", value:TRUE);
  exit(0);
}

set_kb_item(name:"Policy/vrp/current_configuration/telnet_status/cmd", value:cmd);

foreach line(split(ret, keep:FALSE)){
  key_value = eregmatch(string:line, pattern:"(.+)\s+:\s*(.*)");
  if(key_value){
    key = tolower(str_replace(string:chomp(key_value[1]), find:" ", replace:""));
    if(!key)
      continue;
    set_kb_item(name:"Policy/vrp/current_configuration/telnet_status/" + key, value:key_value[2]);
  }
}

exit(0);