mirror of
https://github.com/nmap/nmap.git
synced 2026-01-02 04:49:02 +00:00
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
This commit is contained in:
patrik
145
scripts/snmp-netstat.nse
Normal file
145
scripts/snmp-netstat.nse
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@@ -0,0 +1,145 @@
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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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176
scripts/snmp-processes.nse
Normal file
176
scripts/snmp-processes.nse
Normal file
@@ -0,0 +1,176 @@
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description = [[
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Attempts to enumerate running processes through SNMP
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]]
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---
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-- @output
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-- | snmp-processes:
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-- | System Idle Process
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-- | PID: 1
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-- | System
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-- | PID: 4
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-- | smss.exe
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-- | Path: \SystemRoot\System32\
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-- | PID: 256
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-- | csrss.exe
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-- | Path: C:\WINDOWS\system32\
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-- | Params: ObjectDirectory=\Windows SharedSection=1024,3072,512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserS
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-- | PID: 308
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-- | winlogon.exe
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-- | PID: 332
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-- | services.exe
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-- | Path: C:\WINDOWS\system32\
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-- | PID: 380
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-- | lsass.exe
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-- | Path: C:\WINDOWS\system32\
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-- |_ PID: 392
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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 01/19/2010 - v0.2 - removed debugging output and renamed file
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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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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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socket:close()
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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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--- 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 swrun_name = "1.3.6.1.2.1.25.4.2.1.2"
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local swrun_pid = "1.3.6.1.2.1.25.4.2.1.1"
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local swrun_path = "1.3.6.1.2.1.25.4.2.1.4"
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local swrun_params = "1.3.6.1.2.1.25.4.2.1.5"
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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("^" .. swrun_name) ) then
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local item = {}
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local objid = v.oid:gsub( "^" .. swrun_name, swrun_path)
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local value = get_value_from_table( tbl, objid )
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if value and value:len() > 0 then
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table.insert( item, ("Path: %s"):format( value ) )
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end
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objid = v.oid:gsub( "^" .. swrun_name, swrun_params)
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value = get_value_from_table( tbl, objid )
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if value and value:len() > 0 then
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table.insert( item, ("Params: %s"):format( value ) )
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end
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objid = v.oid:gsub( "^" .. swrun_name, swrun_pid)
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value = get_value_from_table( tbl, objid )
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if value then
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table.insert( item, ("PID: %s"):format( value ) )
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end
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item.name = v.value
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table.insert( item, value )
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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, "1.3.6.1.2.1.25.4.2"
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local shares = {}
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socket:set_timeout(5000)
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try(socket:connect(host.ip, port.number, "udp"))
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shares = snmp_walk( socket, snmpoid )
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if ( shares == nil ) or ( #shares == 0 ) then
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return
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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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121
scripts/snmp-win32-services.nse
Normal file
121
scripts/snmp-win32-services.nse
Normal file
@@ -0,0 +1,121 @@
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description = [[
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Attempts to enumerate Windows Services through SNMP
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]]
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---
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-- @output
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-- | snmp-win32-services:
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-- | Apache Tomcat
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-- | Application Experience Lookup Service
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-- | Application Layer Gateway Service
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-- | Automatic Updates
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-- | COM+ Event System
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-- | COM+ System Application
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-- | Computer Browser
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-- | Cryptographic Services
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-- | DB2 - DB2COPY1 - DB2
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-- | DB2 Management Service (DB2COPY1)
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-- | DB2 Remote Command Server (DB2COPY1)
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-- | DB2DAS - DB2DAS00
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-- |_ DCOM Server Process Launcher
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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 0.2
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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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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
|
||||
-- @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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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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socket:close()
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snmp_table.baseoid = base_oid
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||||
return snmp_table
|
||||
|
||||
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 )
|
||||
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local new_tab = {}
|
||||
|
||||
for _, v in ipairs( tbl ) do
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table.insert( new_tab, v.value )
|
||||
end
|
||||
|
||||
table.sort( new_tab )
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||||
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||||
return new_tab
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||||
|
||||
end
|
||||
|
||||
action = function(host, port)
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|
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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 snmpoid = "1.3.6.1.4.1.77.1.2.3.1.1"
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local services = {}
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socket:set_timeout(5000)
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try(socket:connect(host.ip, port.number, "udp"))
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services = snmp_walk( socket, snmpoid )
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||||
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||||
if ( services == nil ) or ( #services == 0 ) then
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return
|
||||
end
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||||
|
||||
services = process_answer(services)
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||||
nmap.set_port_state(host, port, "open")
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||||
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||||
return stdnse.format_output( true, services )
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||||
end
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||||
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||||
142
scripts/snmp-win32-shares.nse
Normal file
142
scripts/snmp-win32-shares.nse
Normal file
@@ -0,0 +1,142 @@
|
||||
description = [[
|
||||
Attempts to enumerate Windows Shares through SNMP
|
||||
]]
|
||||
|
||||
---
|
||||
-- @output
|
||||
-- | snmp-win32-shares:
|
||||
-- | SYSVOL
|
||||
-- | C:\WINDOWS\sysvol\sysvol
|
||||
-- | NETLOGON
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||||
-- | C:\WINDOWS\sysvol\sysvol\inspectit-labb.local\SCRIPTS
|
||||
-- | Webapps
|
||||
-- |_ C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\ROOT
|
||||
|
||||
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 share_name = "1.3.6.1.4.1.77.1.2.27.1.1"
|
||||
local share_path = "1.3.6.1.4.1.77.1.2.27.1.2"
|
||||
local new_tbl = {}
|
||||
|
||||
for _, v in ipairs( tbl ) do
|
||||
|
||||
if ( v.oid:match("^" .. share_name) ) then
|
||||
local item = {}
|
||||
local objid = v.oid:gsub( "^" .. share_name, share_path)
|
||||
local path = get_value_from_table( tbl, objid )
|
||||
|
||||
item.name = v.value
|
||||
table.insert( item, path )
|
||||
table.insert( new_tbl, item )
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
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, "1.3.6.1.4.1.77.1.2.27"
|
||||
local shares = {}
|
||||
|
||||
socket:set_timeout(5000)
|
||||
try(socket:connect(host.ip, port.number, "udp"))
|
||||
|
||||
shares = snmp_walk( socket, snmpoid )
|
||||
|
||||
if ( shares == nil ) or ( #shares == 0 ) then
|
||||
return
|
||||
end
|
||||
|
||||
shares = process_answer( shares )
|
||||
|
||||
nmap.set_port_state(host, port, "open")
|
||||
|
||||
return stdnse.format_output( true, shares )
|
||||
end
|
||||
|
||||
147
scripts/snmp-win32-software.nse
Normal file
147
scripts/snmp-win32-software.nse
Normal file
@@ -0,0 +1,147 @@
|
||||
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
|
||||
|
||||
118
scripts/snmp-win32-users.nse
Normal file
118
scripts/snmp-win32-users.nse
Normal file
@@ -0,0 +1,118 @@
|
||||
description = [[
|
||||
Attempts to enumerate User Accounts through SNMP
|
||||
]]
|
||||
|
||||
---
|
||||
-- @output
|
||||
-- | snmp-win32-users:
|
||||
-- | Administrator
|
||||
-- | Guest
|
||||
-- | IUSR_EDUSRV011
|
||||
-- | IWAM_EDUSRV011
|
||||
-- | SUPPORT_388945a0
|
||||
-- | Tomcat
|
||||
-- | db2admin
|
||||
-- | ldaptest
|
||||
-- |_ patrik
|
||||
|
||||
|
||||
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
|
||||
|
||||
--- 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 new_tab = {}
|
||||
|
||||
for _, v in ipairs( tbl ) do
|
||||
table.insert( new_tab, v.value )
|
||||
end
|
||||
|
||||
table.sort( new_tab )
|
||||
|
||||
return new_tab
|
||||
|
||||
end
|
||||
|
||||
action = function(host, port)
|
||||
|
||||
local socket = nmap.new_socket()
|
||||
local catch = function() socket:close() end
|
||||
local try = nmap.new_try(catch)
|
||||
local snmpoid = "1.3.6.1.4.1.77.1.2.25"
|
||||
local users = {}
|
||||
|
||||
socket:set_timeout(5000)
|
||||
try(socket:connect(host.ip, port.number, "udp"))
|
||||
|
||||
users = snmp_walk( socket, snmpoid )
|
||||
users = process_answer( users )
|
||||
|
||||
if ( users == nil ) or ( #users == 0 ) then
|
||||
return
|
||||
end
|
||||
|
||||
nmap.set_port_state(host, port, "open")
|
||||
|
||||
return stdnse.format_output( true, users )
|
||||
end
|
||||
|
||||
Reference in New Issue
Block a user