IT-Grundschutz: List reject Rule on Cisco Voip Devices over Telnet

###############################################################################
# OpenVAS Vulnerability Test
# $Id: GSHB_TELNET_Cisco_Voice.nasl 7076 2017-09-07 11:53:47Z teissa $
#
# List reject Rule on Cisco Voip Devices over Telnet
#
# Authors:
# Thomas Rotter <[email protected]>
#
# Copyright:
# Copyright (c) 2010 Greenbone Networks GmbH, http://www.greenbone.net
#
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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.
###############################################################################

tag_summary = "This plugin list reject Rule on Cisco Voip Devices over Telnet.
  To use this test, you must configure Username and password for this test in the preferences.";

if(description)
{
  script_id(96107);
  script_version("$Revision: 7076 $");
  script_tag(name:"last_modification", value:"$Date: 2017-09-07 13:53:47 +0200 (Thu, 07 Sep 2017) $");
  script_tag(name:"creation_date", value:"2010-06-10 15:20:25 +0200 (Thu, 10 Jun 2010)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");
  script_tag(name:"qod_type", value:"remote_app");  
  script_name("IT-Grundschutz: List reject Rule on Cisco Voip Devices over Telnet");
  script_add_preference(name:"Telnet Testuser Name", type:"entry", value:"UserName");
  script_add_preference(name:"Telnet Testuser Password", type:"password", value:"PassWord");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2010 Greenbone Networks GmbH");
  script_family("IT-Grundschutz");
  script_mandatory_keys("Compliance/Launch/GSHB");
  script_dependencies("find_service.nasl", "ssh_authorization.nasl");
  script_tag(name : "summary" , value : tag_summary);
  exit(0);
}

include('telnet_func.inc');
include("default_account.inc");

telnet_port = get_kb_item("Services/telnet");
if (!telnet_port) telnet_port = 23;


login = script_get_preference("Telnet Testuser Name");
password = script_get_preference("Telnet Testuser Password");

#login = "admin";
#password = "greenbone";

if (!login || login == "UserName" || login == "" || !password || password == "PassWord" || password == ""){
  set_kb_item(name: "GSHB/Voice", value:"no credentials set");
  exit(0);  
}

soc = open_sock_tcp(telnet_port);
if (!soc)
{
  telnet_port = 0;
  set_kb_item(name: "GSHB/Voice", value:"error");
  set_kb_item(name: "GSHB/Voice/log", value:"no Telnet Port");
  exit(0);
}
ret = telnet_negotiate(socket:soc, pattern:"(ogin:|asscode:|assword:)");
if(strlen(ret)){
  if ( stridx(ret, "sername:") != -1 || stridx(ret, "ogin:") != -1  )  {
    send(socket:soc, data:string(login, "\r\n"));
    ret=recv_until(socket:soc, pattern:"(assword:|asscode:)");
  }
  if ( stridx(ret, "assword:") == -1 && stridx(ret, "asscode:") == -1  )  {
    close(soc);
    return(0);
  }
  send(socket:soc, data:string(password, "\r\n"));
  r = recv(socket:soc, length:4096);
  send(socket:soc, data:string("term len 0\r\n"));
  r2 = recv_until(socket:soc, pattern:"(assword:|asscode:|ogin:|% Bad password)");
  if (!r2){
    send(socket:soc, data:string('\r\nshow version  | include Cisco\r\n'));
    cisco = recv(socket:soc, length:16384);
    send(socket:soc, data:string('\r\nshow version  | include oice\r\n'));
    voice = recv(socket:soc, length:16384);
    send(socket:soc, data:string('\r\nshow running-config | include (R|r)ule .* (R|r)eject\r\n'));
    transla = recv(socket:soc, length:16384);
#    send(socket:soc, data:string('\r\nshow running-config  | include acl\r\n'));
#    acl = recv(socket:soc, length:16384);
  }else{
    set_kb_item(name: "GSHB/Voice", value:"Login Failed");
    close(soc);
    exit(0);
  }
  close(soc);
}

val = split(cisco, sep:'\r\n', keep:0);
for(i=0; i<max_index(val); i++){
  if (val[i] == "" || val[i] =~ ".*#$" || val[i] == "show version" || val[i] =~ ".*#show version") continue;
  retcisco += val[i] + '\n';
}

val = split(voice, sep:'\r\n', keep:0);
for(i=0; i<max_index(val); i++){
  if (val[i] == "" || val[i] =~ ".*#$" || val[i] == "show version  | include oice" || val[i] =~ ".*#show version  | include oice") continue;
  retvoice += val[i] + '\n';
}
 
val = split(transla, sep:'\r\n', keep:0);
for(i=0; i<max_index(val); i++){
  if (val[i] == "" || val[i] =~ ".*#$" || val[i] == "show running-config | include (R|r)ule .* (R|r)eject" || val[i] =~ ".*#show running-config | include (R|r)ule .* (R|r)eject") continue;
  rettransla += val[i] + '\n';
} 
 
#val = split(acl, sep:'\r\n', keep:0);
#for(i=0; i<max_index(val); i++){
#  if (val[i] == "" || val[i] =~ ".*#$" || val[i] == "show running-config  | include acl" || val[i] =~ ".*#show running-config  | include acl") continue;
#  retacl += val[i] + '\n';
#} 
 
if (!retvoice){
  set_kb_item(name: "GSHB/Voice", value:"novoice");
exit(0);
}else if("show: command not found" >< voice){
  set_kb_item(name: "GSHB/Voice", value:"nocisco");
exit(0);
}else if(!retcisco){
  set_kb_item(name: "GSHB/Voice", value:"nocisco");
exit(0);
}else{
  if (!rettransla) rettransla = "noconfig";
  if (!retacl) retacl = "noconfig";
}

set_kb_item(name: "GSHB/Voice", value:"Cisco-Voice");
set_kb_item(name: "GSHB/Voice/translation", value:rettransla);
#set_kb_item(name: "GSHB/Voice/acl", value:retacl);
exit(0);