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nmap/scripts/snmp-win32-software.nse
patrik d2e54f0bf2 o [NSE] Added a new library for ASN.1 parsing and adapted the SNMP library to
make use of it. Added 5 scripts that use the new libraries:
  - snmp-netstat shows listening and connected sockets
  - snmp-processes shows process information including name, pid, path and 
    parameters
  - snmp-win32-services shows the names of running Windows services
  - snmp-win32-shares shows the names and path of Windows shares
  - snmp-win32-software shows a list of installed Windows software
  - snmp-win32-users shows a list of local Windows users
2010-02-16 09:15:38 +00:00

148 lines
3.8 KiB
Lua

description = [[
Attempts to enumerate installed software through SNMP
]]
---
-- @output
-- | snmp-win32-software:
-- | Apache Tomcat 5.5 (remove only); 2007-09-15 15:13:18
-- | Microsoft Internationalized Domain Names Mitigation APIs; 2007-09-15 15:13:18
-- | Security Update for Windows Media Player (KB911564); 2007-09-15 15:13:18
-- | Security Update for Windows Server 2003 (KB924667-v2); 2007-09-15 15:13:18
-- | Security Update for Windows Media Player 6.4 (KB925398); 2007-09-15 15:13:18
-- | Security Update for Windows Server 2003 (KB925902); 2007-09-15 15:13:18
-- |_ Windows Internet Explorer 7; 2007-09-15 15:13:18
author = "Patrik Karlsson"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"default", "discovery", "safe"}
dependencies = {"snmp-brute"}
-- Version 0.2
-- Created 01/15/2010 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
-- Revised 01/19/2010 - v0.2 - fixed loop that would occure if a mib did not exist
require "shortport"
require "snmp"
portrule = shortport.portnumber(161, "udp", {"open", "open|filtered"})
--- Walks the MIB Tree
--
-- @param socket socket already connected to the server
-- @base_oid string containing the base object ID to walk
-- @return table containing <code>oid</code> and <code>value</code>
function snmp_walk( socket, base_oid )
local catch = function() socket:close() end
local try = nmap.new_try(catch)
local snmp_table = {}
local oid = base_oid
while ( true ) do
local value, response, snmpdata, options, item = nil, nil, nil, {}, {}
options.reqId = 28428 -- unnecessary?
payload = snmp.encode( snmp.buildPacket( snmp.buildGetNextRequest(options, oid) ) )
try(socket:send(payload))
response = try( socket:receive_bytes(1) )
snmpdata = snmp.fetchResponseValues( response )
value = snmpdata[1][1]
oid = snmpdata[1][2]
if not oid:match( base_oid ) or base_oid == oid then
break
end
item.oid = oid
item.value = value
table.insert( snmp_table, item )
end
socket:close()
snmp_table.baseoid = base_oid
return snmp_table
end
--- Gets a value for the specified oid
--
-- @param tbl table containing <code>oid</code> and <code>value</code>
-- @param oid string containing the object id for which the value should be extracted
-- @return value of relevant type or nil if oid was not found
function get_value_from_table( tbl, oid )
for _, v in ipairs( tbl ) do
if v.oid == oid then
return v.value
end
end
return nil
end
--- Processes the table and creates the script output
--
-- @param tbl table containing <code>oid</code> and <code>value</code>
-- @return table suitable for <code>stdnse.format_output</code>
function process_answer( tbl )
local sw_name = "1.3.6.1.2.1.25.6.3.1.2"
local sw_date = "1.3.6.1.2.1.25.6.3.1.5"
local new_tbl = {}
for _, v in ipairs( tbl ) do
if ( v.oid:match("^" .. sw_name) ) then
local objid = v.oid:gsub( "^" .. sw_name, sw_date)
local install_date = get_value_from_table( tbl, objid )
local sw_item
local _, year, month, day, hour, min, sec = bin.unpack( ">SCCCCC", install_date )
install_date = ("%02d-%02d-%02d %02d:%02d:%02d"):format( year, month, day, hour, min, sec )
sw_item = ("%s; %s"):format(v.value ,install_date)
table.insert( new_tbl, sw_item )
end
end
table.sort( new_tbl )
return new_tbl
end
action = function(host, port)
local socket = nmap.new_socket()
local catch = function() socket:close() end
local try = nmap.new_try(catch)
local data, snmpoid = nil, "1.3.6.1.2.1.25.6.3.1"
local sw = {}
socket:set_timeout(5000)
try(socket:connect(host.ip, port.number, "udp"))
sw = snmp_walk( socket, snmpoid )
if ( sw == nil ) or ( #sw == 0 ) then
return
end
sw = process_answer( sw )
nmap.set_port_state(host, port, "open")
return stdnse.format_output( true, sw )
end