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Official safe Discovery

lexmark-config

Retrieves configuration information from a Lexmark S300-S400 printer.

Ports

Any

Protocols

n/a

Attribution

Nmap Project

Usage

Copy the command and adjust the target or script arguments as needed.

nmap -sU -p 9100 --script=lexmark-config <target>
Script Source Toggle

The full script source is stored with this entry and is hidden by default to keep the page easier to scan.

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.
]]


---
--@usage
-- nmap -sU -p 9100 --script=lexmark-config <target>
--@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 https://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

Overview

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 .