mirror of
https://github.com/nmap/nmap.git
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d2e54f0bf2
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
146 lines
3.6 KiB
Lua
146 lines
3.6 KiB
Lua
description = [[
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Attempts to query SNMP for a netstat like output
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]]
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---
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-- @output
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-- | snmp-netstat:
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-- | TCP 0.0.0.0:21 0.0.0.0:2256
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-- | TCP 0.0.0.0:80 0.0.0.0:8218
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-- | TCP 0.0.0.0:135 0.0.0.0:53285
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-- | TCP 0.0.0.0:389 0.0.0.0:38990
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-- | TCP 0.0.0.0:445 0.0.0.0:49158
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-- | TCP 127.0.0.1:389 127.0.0.1:1045
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-- | TCP 127.0.0.1:389 127.0.0.1:1048
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-- | UDP 192.168.56.3:137 *:*
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-- | UDP 192.168.56.3:138 *:*
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-- | UDP 192.168.56.3:389 *:*
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-- |_ UDP 192.168.56.3:464 *:*
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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 0.1
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-- Created 01/19/2010 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
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require "shortport"
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require "snmp"
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portrule = shortport.portnumber(161, "udp", {"open", "open|filtered"})
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--- Walks the MIB Tree
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--
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-- @param socket socket already connected to the server
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-- @base_oid string containing the base object ID to walk
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-- @return table containing <code>oid</code> and <code>value</code>
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function snmp_walk( socket, base_oid )
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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 snmp_table = {}
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local oid = base_oid
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while ( true ) do
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local value, response, snmpdata, options, item = nil, nil, nil, {}, {}
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options.reqId = 28428 -- unnecessary?
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payload = snmp.encode( snmp.buildPacket( snmp.buildGetNextRequest(options, oid) ) )
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try(socket:send(payload))
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response = try( socket:receive_bytes(1) )
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snmpdata = snmp.fetchResponseValues( response )
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value = snmpdata[1][1]
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oid = snmpdata[1][2]
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if not oid:match( base_oid ) or base_oid == oid then
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break
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end
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local lip = oid:match( "^" .. base_oid .. "%.(%d+%.%d+%.%d+%.%d+)") or ""
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local lport = oid:match( "^" .. base_oid .. "%.%d+%.%d+%.%d+%.%d+%.(%d+)")
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local fip = oid:match( "^" .. base_oid .. "%.%d+%.%d+%.%d+%.%d+%.%d+%.(%d+%.%d+%.%d+%.%d+)") or "*:*"
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local fport = oid:match( "^" .. base_oid .. "%.%d+%.%d+%.%d+%.%d+%.%d+%.%d+%.%d+%.%d+%.%d+%.(%d+)")
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if lport and lport ~= "0" then
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lip = lip .. ":" .. lport
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end
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if fport and fport ~= "0" then
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fip = fip .. ":" .. fport
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end
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value = string.format("%-20s %s", lip, fip )
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item.oid = oid
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item.value = value
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table.insert( snmp_table, item )
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end
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snmp_table.baseoid = base_oid
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return snmp_table
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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, prefix )
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local new_tab = {}
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for _, v in ipairs( tbl ) do
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table.insert( new_tab, string.format( "%-4s %s", prefix, v.value ) )
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end
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return new_tab
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end
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function table_merge( t1, t2 )
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for _, v in ipairs(t2) do
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table.insert(t1, v)
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end
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return t1
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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 tcp_oid = "1.3.6.1.2.1.6.13.1.1"
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local udp_oid = "1.3.6.1.2.1.7.5.1.1"
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local netstat = {}
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socket:set_timeout(5000)
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try(socket:connect(host.ip, port.number, "udp"))
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local tcp = snmp_walk( socket, tcp_oid )
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local udp = snmp_walk( socket, udp_oid )
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if ( tcp == nil ) or ( #tcp == 0 ) or ( udp==nil ) or ( #udp == 0 ) then
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return
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end
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tcp = process_answer(tcp, "TCP")
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udp = process_answer(udp, "UDP")
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netstat = table_merge( tcp, udp )
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nmap.set_port_state(host, port, "open")
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socket:close()
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return stdnse.format_output( true, netstat )
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end
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