Forked from dmiller-nmap/broadcast-sonicwall-discover.nse
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local ipOps = require "ipOps" | |
local nmap = require "nmap" | |
local packet = require "packet" | |
local stdnse = require "stdnse" | |
local string = require "string" | |
local target = require "target" | |
description = [[ | |
Discovers Sonicwall firewalls which are directly attached (not routed) using | |
the same method as the manufacturers own 'SetupTool'. An interface needs to be | |
configured, as the script broadcasts a UDP packet. | |
See: https://support.software.dell.com/fr-fr/kb/sw3677) | |
The script needs to be run as a privileged user, typically root. | |
]] | |
--- | |
-- @usage | |
-- sudo nmap -e eth0 --script broadcast-sonicwall-discover | |
-- | |
-- @output | |
-- | broadcast-sonicwall-discover: | |
-- | 192.168.5.1 | |
-- | MAC/Serial: 0006B1001122 | |
-- | Subnetmask: 255.255.255.0 | |
-- | Firmware: 3.9.1.2 | |
-- |_ ROM: 14.0.1.1 | |
-- | |
-- @args broadcast-sonicwall-discover.timeout time in seconds to wait for a response | |
-- (default: 1s) | |
author = "Raphael Hoegger" | |
license = "Same as Nmap--See http://nmap.org/book/man-legal.html" | |
categories = {"broadcast", "safe"} | |
-- preliminary checks | |
local interface = stdnse.get_script_args(SCRIPT_NAME .. ".interface") or nmap.get_interface() | |
prerule = function() | |
if not nmap.is_privileged() then | |
stdnse.print_verbose("%s not running for lack of privileges.", SCRIPT_NAME) | |
return false | |
end | |
local has_interface = ( interface ~= nil ) | |
if ( not(has_interface) ) then | |
stdnse.print_verbose("%s no network interface was supplied, aborting ...", SCRIPT_NAME) | |
return false | |
end | |
return true | |
end | |
action = function(host, port) | |
local sock, co | |
sock = nmap.new_socket() | |
local timeout = stdnse.parse_timespec(stdnse.get_script_args(SCRIPT_NAME .. ".timeout")) | |
timeout = (timeout or 1) * 1000 | |
-- listen for a response | |
sock:set_timeout(timeout) | |
sock:pcap_open(interface, 1500, false, "ip && udp && port 26214 && greater 57") | |
send_discover() | |
local start_time = nmap.clock_ms() | |
local results = stdnse.output_table() | |
while( nmap.clock_ms() - start_time < timeout ) do | |
local status, plen, _, layer3 = sock:pcap_receive() | |
-- stop once we picked up our response | |
if ( status ) then | |
sock:close() | |
local p = packet.Packet:new( layer3, #layer3) | |
if ( p and p.udp_dport ) then | |
-- parsing the result | |
local IP = string.sub(layer3:sub(41), 0,4) | |
IP = ipOps.str_to_ip(IP) | |
local Netmask = string.sub(layer3:sub(45), 0,4) | |
Netmask = ipOps.str_to_ip(Netmask) | |
local Serial=string.sub(layer3:sub(49), 0,6) | |
Serial = stdnse.tohex(Serial) | |
local Romversion=string.sub(layer3:sub(55), 0,2) | |
local ROMM = stdnse.tohex(Romversion, {separator=".", group=1}) | |
ROMM = string.gsub(ROMM, "[0-9a-f]", function(n) return tonumber(n, 16) end) | |
local Firmwareversion=string.sub(layer3:sub(57), 0,2) | |
local FIRMM = stdnse.tohex(Firmwareversion, {separator=".", group=1}) | |
FIRMM = string.gsub(FIRMM, "[0-9a-f]", function(n) return tonumber(n, 16) end) | |
-- add nodes | |
if target.ALLOW_NEW_TARGETS then | |
target.add(IP) | |
end | |
local output = stdnse.output_table() | |
output['MAC/Serial'] = Serial | |
output['Subnetmask'] = Netmask | |
output['Firmware'] = FIRMM | |
output['ROM Version'] = ROMM | |
results[IP] = output | |
end | |
end | |
sock:close() | |
end | |
return results | |
end | |
function send_discover() | |
local host="255.255.255.255" | |
local port="26214" | |
local socket = nmap.new_socket("udp") | |
local status = socket:sendto(host, port, "ackfin ping\00") | |
if not status then return end | |
socket:close() | |
return true | |
end |
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