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105 lines
2.6 KiB
Lua
105 lines
2.6 KiB
Lua
local nmap = require "nmap"
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local shortport = require "shortport"
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local snmp = require "snmp"
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local stdnse = require "stdnse"
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local table = require "table"
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description = [[
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Attempts to enumerate Windows Shares through SNMP.
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]]
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---
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-- @output
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-- | snmp-win32-shares:
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-- | SYSVOL
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-- | C:\WINDOWS\sysvol\sysvol
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-- | NETLOGON
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-- | C:\WINDOWS\sysvol\sysvol\inspectit-labb.local\SCRIPTS
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-- | Webapps
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-- |_ C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\ROOT
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author = "Patrik Karlsson"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"default", "discovery", "safe"}
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dependencies = {"snmp-brute"}
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-- Version 0.3
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-- Created 01/15/2010 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
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-- Revised 01/19/2010 - v0.2 - fixed loop that would occure if a mib did not exist
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-- Revised 04/11/2010 - v0.3 - moved snmp_walk to snmp library <patrik@cqure.net>
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portrule = shortport.portnumber(161, "udp", {"open", "open|filtered"})
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--- Gets a value for the specified oid
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--
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-- @param tbl table containing <code>oid</code> and <code>value</code>
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-- @param oid string containing the object id for which the value should be extracted
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-- @return value of relevant type or nil if oid was not found
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function get_value_from_table( tbl, oid )
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for _, v in ipairs( tbl ) do
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if v.oid == oid then
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return v.value
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end
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end
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return nil
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end
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--- Processes the table and creates the script output
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--
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-- @param tbl table containing <code>oid</code> and <code>value</code>
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-- @return table suitable for <code>stdnse.format_output</code>
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function process_answer( tbl )
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local share_name = "1.3.6.1.4.1.77.1.2.27.1.1"
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local share_path = "1.3.6.1.4.1.77.1.2.27.1.2"
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local new_tbl = {}
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for _, v in ipairs( tbl ) do
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if ( v.oid:match("^" .. share_name) ) then
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local item = {}
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local objid = v.oid:gsub( "^" .. share_name, share_path)
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local path = get_value_from_table( tbl, objid )
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item.name = v.value
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table.insert( item, path )
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table.insert( new_tbl, item )
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end
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end
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return new_tbl
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end
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action = function(host, port)
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local socket = nmap.new_socket()
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local catch = function() socket:close() end
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local try = nmap.new_try(catch)
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local data, snmpoid = nil, "1.3.6.1.4.1.77.1.2.27"
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local shares = {}
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local status
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socket:set_timeout(5000)
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try(socket:connect(host, port))
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status, shares = snmp.snmpWalk( socket, snmpoid )
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socket:close()
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if (not(status)) or ( shares == nil ) or ( #shares == 0 ) then
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return shares
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end
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shares = process_answer( shares )
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nmap.set_port_state(host, port, "open")
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return stdnse.format_output( true, shares )
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end
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