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https://github.com/nmap/nmap.git
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31bc2847bd
Clean up some typos and differences. Most have been normalized to whatever form of the name occurred in the largest number of scripts. Paulino was contacted directly and requested his email be added to all of his credits.
101 lines
2.7 KiB
Lua
101 lines
2.7 KiB
Lua
local nmap = require "nmap"
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local stdnse = require "stdnse"
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local table = require "table"
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local target = require "target"
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description = [[
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Produces a list of IP prefixes for a given routing AS number (ASN).
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This script uses a whois server database operated by the Shadowserver
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Foundation. We thank them for granting us permission to use this in
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Nmap.
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Output is in CIDR notation.
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http://www.shadowserver.org/wiki/pmwiki.php/Services/IP-BGP
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]]
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---
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-- @args targets-asn.asn The ASN to search.
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-- @args targets-asn.whois_server The whois server to use. Default: asn.shadowserver.org.
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-- @args targets-asn.whois_port The whois port to use. Default: 43.
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--
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-- @usage
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-- nmap --script targets-asn --script-args targets-asn.asn=32
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--
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-- @output
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-- 53/udp open domain udp-response
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-- | targets-asn:
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-- | 32
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-- | 128.12.0.0/16
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-- |_ 171.64.0.0/14
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author = "John R. Bond"
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license = "Simplified (2-clause) BSD license--See http://nmap.org/svn/docs/licenses/BSD-simplified"
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categories = {"discovery", "external", "safe"}
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prerule = function()
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return true
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end
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action = function(host, port)
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local asns, whois_server, whois_port, err, status, newtargets
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local results = {}
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asns = stdnse.get_script_args('targets-asn.asn') or stdnse.get_script_args('asn-to-prefix.asn')
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whois_server = stdnse.get_script_args('targets-asn.whois_server') or stdnse.get_script_args('asn-to-prefix.whois_server')
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whois_port = stdnse.get_script_args('targets-asn.whois_port') or stdnse.get_script_args('asn-to-prefix.whois_port')
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if not asns then
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return stdnse.format_output(true, "targets-asn.asn is a mandatory parameter")
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end
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if not whois_server then
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whois_server = "asn.shadowserver.org"
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end
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if not whois_port then
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whois_port = 43
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end
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if type(asns) ~= "table" then
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asns = {asns}
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end
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for _, asn in ipairs(asns) do
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local socket = nmap.new_socket()
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local prefixes = {}
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prefixes['name'] = asn
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status, err = socket:connect(whois_server, whois_port)
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if ( not(status) ) then
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table.insert(prefixes, err)
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else
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status, err = socket:send("prefix " .. asn .. "\n")
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if ( not(status) ) then
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table.insert(prefixes, err)
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else
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while true do
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local status, data = socket:receive_lines(1)
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if ( not(status) ) then
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table.insert(prefixes, err)
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break
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else
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for i, prefix in ipairs(stdnse.strsplit("\n",data)) do
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if ( #prefix > 1 ) then
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table.insert(prefixes,prefix)
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if target.ALLOW_NEW_TARGETS then
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stdnse.print_debug("Added targets: "..prefix)
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local status,err = target.add(prefix)
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end
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end
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end
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end
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end
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end
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end
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table.insert(results,prefixes)
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end
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return stdnse.format_output(true, results)
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end
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