local os = require "os" local datetime = require "datetime" local bitcoin = require "bitcoin" local shortport = require "shortport" local stdnse = require "stdnse" local table = require "table" description = [[ Extracts version and node information from a Bitcoin server ]] --- -- @usage -- nmap -p 8333 --script bitcoin-info -- -- @output -- PORT STATE SERVICE -- 8333/tcp open bitcoin -- | bitcoin-info: -- | Timestamp: 2018-03-09T06:25:49 -- | Network: main -- | Version: 0.7.0 -- | Node Id: 26855fa1ac038c12 -- | Lastblock: 512702 -- |_ User Agent: /Satoshi:0.14.2/ -- author = "Patrik Karlsson" license = "Same as Nmap--See https://nmap.org/book/man-legal.html" categories = {"discovery", "safe"} -- -- Version 0.1 -- -- Created 11/09/2011 - v0.1 - created by Patrik Karlsson -- portrule = shortport.port_or_service(8333, "bitcoin", "tcp" ) local function fail(err) return stdnse.format_output(false, err) end action = function(host, port) local NETWORK = { [3652501241] = "main", [3669344250] = "testnet" } local bcoin = bitcoin.Helper:new(host, port, { timeout = 10000 }) local status = bcoin:connect() if ( not(status) ) then return fail("Failed to connect to server") end local request_time = os.time() local status, ver = bcoin:exchVersion() if ( not(status) ) then return fail("Failed to extract version information") end bcoin:close() datetime.record_skew(host, ver.timestamp, request_time) local result = stdnse.output_table() result["Timestamp"] = stdnse.format_timestamp(ver.timestamp) result["Network"] = NETWORK[ver.magic] result["Version"] = ver.ver result["Node Id"] = ver.nodeid result["Lastblock"] = ver.lastblock if ver.user_agent ~= "" then result["User Agent"] = ver.user_agent end return result end