local dns = require "dns" local nmap = require "nmap" local shortport = require "shortport" local stdnse = require "stdnse" local table = require "table" description = [[ Retrieves configuration information from a Lexmark S300-S400 printer. The Lexmark S302 responds to the NTPRequest version probe with its configuration. The response decodes as mDNS, so the request was modified to resemble an mDNS request as close as possible. However, the port (9100/udp) is listed as something completely different (HBN3) in documentation from Lexmark. See http://www.lexmark.com/vgn/images/portal/Security%20Features%20of%20Lexmark%20MFPs%20v1_1.pdf. ]] --- --@output -- Interesting ports on 192.168.1.111: -- PORT STATE SERVICE REASON -- 9100/udp unknown unknown unknown-response -- | lexmark-config: -- | IPADDRESS: 10.46.200.170 -- | IPNETMASK: 255.255.255.0 -- | IPGATEWAY: 10.46.200.2 -- | IPNAME: "ET0020006E4A37" -- | MACLAA: "000000000000" -- | MACUAA: "0004007652EC" -- | MDNSNAME: "S300-S400 Series (32)" -- | ADAPTERTYPE: 2 -- | IPADDRSOURCE: 1 -- | ADAPTERCAP: "148FC000" -- | OEMBYTE: 1 0 -- | PASSWORDSET: FALSE -- | NEWPASSWORDTYPE: TRUE -- | 1284STRID: 1 "S300-S400 Series" -- | CPDATTACHED: 1 1 -- | SECUREMODE: FALSE -- | PRINTERVIDPID: 1 "043d0180" -- |_ product=(S300-S400: Series) -- Version 0.3 -- Created 01/03/2010 - v0.1 - created by Patrik Karlsson -- Revised 01/13/2010 - v0.2 - revised script to use dns library -- Revised 01/23/2010 - v0.3 - revised script to use the proper ports author = "Patrik Karlsson" license = "Same as Nmap--See http://nmap.org/book/man-legal.html" categories = {"discovery", "safe"} portrule = shortport.portnumber({5353,9100}, "udp") action = function( host, port ) local result = {} local status, response = dns.query( "", { port = port.number, host = host.ip, dtype="PTR", retPkt=true} ) if ( not(status) ) then return end local status, txtrecords = dns.findNiceAnswer( dns.types.TXT, response, true ) if ( not(status) ) then return end for _, v in ipairs( txtrecords ) do if ( v:len() > 0 ) then if v:find("PRINTERVIDPID") then port.version.name="hbn3" end if not v:find("product=") then v = v:gsub(" ", ": ", 1) end table.insert( result, v ) end end -- set port to open nmap.set_port_state(host, port, "open") nmap.set_port_version(host, port) return stdnse.format_output(true, result) end