513 lines
17 KiB
Ruby
513 lines
17 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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require 'msf/core/auxiliary/report'
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class Metasploit3 < Msf::Auxiliary
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# Exploit mixins should be called first
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include Msf::Exploit::Remote::SMB::Client
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include Msf::Exploit::Remote::SMB::Client::Authenticated
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include Msf::Exploit::Remote::DCERPC
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# Scanner mixin should be near last
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include Msf::Auxiliary::Report
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include Msf::Auxiliary::Scanner
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def initialize(info={})
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super(update_info(info,
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'Name' => 'SMB Share Enumeration',
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'Description' => %q{
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This module determines what shares are provided by the SMB service and which ones
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are readable/writable. It also collects additional information such as share types,
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directories, files, time stamps, etc.
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By default, a netshareenum request is done in order to retrieve share information,
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but if this fails, you may also fall back to SRVSVC.
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},
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'Author' =>
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[
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'hdm',
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'nebulus',
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'sinn3r',
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'r3dy',
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'altonjx'
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],
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'License' => MSF_LICENSE,
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'DefaultOptions' =>
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{
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'DCERPC::fake_bind_multi' => false
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}
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))
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register_options(
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[
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OptBool.new('SpiderShares', [false, 'Spider shares recursively', false]),
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OptBool.new('ShowFiles', [true, 'Show detailed information when spidering', false]),
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OptBool.new('SpiderProfiles', [false, 'Spider only user profiles when share = C$', true]),
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OptEnum.new('LogSpider', [false, '0 = disabled, 1 = CSV, 2 = table (txt), 3 = one liner (txt)', 3, [0,1,2,3]]),
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OptInt.new('MaxDepth', [true, 'Max number of subdirectories to spider', 999]),
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OptBool.new('USE_SRVSVC_ONLY', [true, 'List shares only with SRVSVC', false ])
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], self.class)
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deregister_options('RPORT', 'RHOST')
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end
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def share_type(val)
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[ 'DISK', 'PRINTER', 'DEVICE', 'IPC', 'SPECIAL', 'TEMPORARY' ][val]
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end
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def device_type_int_to_text(device_type)
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types = [
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"UNSET", "BEEP", "CDROM", "CDROM FILE SYSTEM", "CONTROLLER", "DATALINK",
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"DFS", "DISK", "DISK FILE SYSTEM", "FILE SYSTEM", "INPORT PORT", "KEYBOARD",
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"MAILSLOT", "MIDI IN", "MIDI OUT", "MOUSE", "UNC PROVIDER", "NAMED PIPE",
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"NETWORK", "NETWORK BROWSER", "NETWORK FILE SYSTEM", "NULL", "PARALLEL PORT",
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"PHYSICAL NETCARD", "PRINTER", "SCANNER", "SERIAL MOUSE PORT", "SERIAL PORT",
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"SCREEN", "SOUND", "STREAMS", "TAPE", "TAPE FILE SYSTEM", "TRANSPORT", "UNKNOWN",
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"VIDEO", "VIRTUAL DISK", "WAVE IN", "WAVE OUT", "8042 PORT", "NETWORK REDIRECTOR",
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"BATTERY", "BUS EXTENDER", "MODEM", "VDM"
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]
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types[device_type]
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end
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def to_unix_time(thi, tlo)
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t = ::Time.at(::Rex::Proto::SMB::Utils.time_smb_to_unix(thi, tlo))
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t.strftime("%m-%d-%Y %H:%M:%S")
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end
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def eval_host(ip, share, subdir = "")
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read = write = false
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# srvsvc adds a null byte that needs to be removed
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share = share.chomp("\x00")
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return false,false,nil,nil if share == 'IPC$'
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self.simple.connect("\\\\#{ip}\\#{share}")
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begin
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device_type = self.simple.client.queryfs_fs_device['device_type']
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unless device_type
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vprint_error("\\\\#{ip}\\#{share}: Error querying filesystem device type")
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return false,false,nil,nil
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end
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rescue ::Rex::Proto::SMB::Exceptions::ErrorCode => e
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err = e.to_s.scan(/The server responded with error: (\w+)/i).flatten[0]
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case err
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when /0xffff0002/
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# 0xffff0002 means that the server can't handle the request for device type
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device_type = -1
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when /STATUS_INVALID_DEVICE_REQUEST/
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return false,false,"Invalid device request"
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when /0x00040002/
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# Samba may throw this error too
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return false,false,"Mac/Apple Clipboard?"
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when /STATUS_NETWORK_ACCESS_DENIED/, /0x00030001/, /0x00060002/
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# 0x0006002 = bad network name, 0x0030001 Directory not found
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return false,false,nil,nil
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else
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vprint_error("\\\\#{ip}\\#{share}: Error querying filesystem device type")
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return false,false,nil,nil
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end
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end
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skip = false
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msg = ''
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case device_type
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when -1
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msg = "Unable to determine device"
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when 1, 21 .. 29, 34 .. 35, 37 .. 44
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skip = true
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msg = "Unhandled Device Type (#{device_type})"
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when 2 .. 16, 18 .. 20, 30 .. 33, 36
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msg = device_type_int_to_text(device_type)
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when 17
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skip = true
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msg = device_type_int_to_text(device_type)
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else
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msg = "Unknown Device Type"
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msg << " (#{device_type})" if device_type
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end
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return read,write,msg,nil if skip
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rfd = self.simple.client.find_first("#{subdir}\\*")
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read = true if rfd != nil
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# Test writable
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filename = Rex::Text.rand_text_alpha(rand(8))
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wfd = simple.open("\\#{filename}", 'rwct')
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wfd << Rex::Text.rand_text_alpha(rand(1024))
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wfd.close
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simple.delete("\\#{filename}")
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simple.disconnect("\\\\#{ip}\\#{share}")
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# Operating under assumption STATUS_ACCESS_DENIED or the like will get
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# thrown before write=true
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write = true
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return read,write,msg,rfd
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rescue ::Rex::Proto::SMB::Exceptions::NoReply,::Rex::Proto::SMB::Exceptions::InvalidType,
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::Rex::Proto::SMB::Exceptions::ReadPacket,::Rex::Proto::SMB::Exceptions::ErrorCode
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return read,false,msg,rfd
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end
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def get_os_info(ip, rport)
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os = smb_fingerprint
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os_info = "#{os['os']} #{os['sp']} (#{os['lang']})" if os['os'] != "Unknown"
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report_service(
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:host => ip,
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:port => rport,
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:proto => 'tcp',
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:name => 'smb',
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:info => os_info
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) if os_info
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os_info
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end
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def lanman_netshareenum(ip, rport, info)
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shares = []
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begin
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res = self.simple.client.trans(
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"\\PIPE\\LANMAN",
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(
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[0x00].pack('v') +
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"WrLeh\x00" +
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"B13BWz\x00" +
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[0x01, 65406].pack("vv")
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))
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rescue ::Rex::Proto::SMB::Exceptions::ErrorCode => e
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if e.error_code == 0xC00000BB
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vprint_error("#{ip}:#{rport} - Got 0xC00000BB while enumerating shares, switching to srvsvc...")
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@srvsvc = true # Make sure the module is aware of this state
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return srvsvc_netshareenum(ip)
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end
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end
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return [] if res.nil?
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lerror, lconv, lentries, lcount = res['Payload'].to_s[
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res['Payload'].v['ParamOffset'],
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res['Payload'].v['ParamCount']
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].unpack("v4")
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data = res['Payload'].to_s[
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res['Payload'].v['DataOffset'],
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res['Payload'].v['DataCount']
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]
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0.upto(lentries - 1) do |i|
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sname,tmp = data[(i * 20) + 0, 14].split("\x00")
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stype = data[(i * 20) + 14, 2].unpack('v')[0]
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scoff = data[(i * 20) + 16, 2].unpack('v')[0]
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scoff -= lconv if lconv != 0
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scomm,tmp = data[scoff, data.length - scoff].split("\x00")
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shares << [ sname, share_type(stype), scomm]
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end
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shares
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end
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def srvsvc_netshareenum(ip)
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shares = []
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simple.connect("\\\\#{ip}\\IPC$")
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handle = dcerpc_handle('4b324fc8-1670-01d3-1278-5a47bf6ee188', '3.0', 'ncacn_np', ["\\srvsvc"])
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begin
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dcerpc_bind(handle)
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rescue Rex::Proto::SMB::Exceptions::ErrorCode => e
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vprint_error("#{ip} : #{e.message}")
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return []
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end
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stubdata =
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NDR.uwstring("\\\\#{ip}") +
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NDR.long(1) #level
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ref_id = stubdata[0,4].unpack("V")[0]
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ctr = [1, ref_id + 4 , 0, 0].pack("VVVV")
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stubdata << ctr
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stubdata << NDR.align(ctr)
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stubdata << ["FFFFFFFF"].pack("H*")
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stubdata << [ref_id + 8, 0].pack("VV")
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response = dcerpc.call(0x0f, stubdata)
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res = response.dup
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win_error = res.slice!(-4, 4).unpack("V")[0]
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if win_error != 0
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raise "DCE/RPC error : Win_error = #{win_error + 0}"
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end
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# remove some uneeded data
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res.slice!(0,12) # level, CTR header, Reference ID of CTR
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share_count = res.slice!(0, 4).unpack("V")[0]
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res.slice!(0,4) # Reference ID of CTR1
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share_max_count = res.slice!(0, 4).unpack("V")[0]
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raise "Dce/RPC error : Unknow situation encountered count != count max (#{share_count}/#{share_max_count})" if share_max_count != share_count
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# RerenceID / Type / ReferenceID of Comment
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types = res.slice!(0, share_count * 12).scan(/.{12}/n).map{|a| a[4,2].unpack("v")[0]}
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share_count.times do |t|
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length, offset, max_length = res.slice!(0, 12).unpack("VVV")
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raise "Dce/RPC error : Unknow situation encountered offset != 0 (#{offset})" if offset != 0
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raise "Dce/RPC error : Unknow situation encountered length !=max_length (#{length}/#{max_length})" if length != max_length
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name = res.slice!(0, 2 * length).gsub('\x00','')
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res.slice!(0,2) if length % 2 == 1 # pad
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comment_length, comment_offset, comment_max_length = res.slice!(0, 12).unpack("VVV")
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raise "Dce/RPC error : Unknow situation encountered comment_offset != 0 (#{comment_offset})" if comment_offset != 0
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if comment_length != comment_max_length
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raise "Dce/RPC error : Unknow situation encountered comment_length != comment_max_length (#{comment_length}/#{comment_max_length})"
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end
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comment = res.slice!(0, 2 * comment_length).gsub('\x00','')
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res.slice!(0,2) if comment_length % 2 == 1 # pad
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name = Rex::Text.to_ascii(name)
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s_type = Rex::Text.to_ascii(share_type(types[t]))
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comment = Rex::Text.to_ascii(comment)
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shares << [ name, s_type, comment ]
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end
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shares
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end
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def get_user_dirs(ip, share, base, sub_dirs)
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dirs = []
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usernames = []
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begin
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read,write,type,files = eval_host(ip, share, base)
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# files or type could return nil due to various conditions
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return dirs if files.nil?
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files.each do |f|
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if f[0] != "." and f[0] != ".."
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usernames.push(f[0])
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end
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end
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usernames.each do |username|
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sub_dirs.each do |sub_dir|
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dirs.push("#{base}\\#{username}\\#{sub_dir}")
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end
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end
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return dirs
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rescue
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return dirs
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end
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end
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def profile_options(ip, share)
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old_dirs = ['My Documents','Desktop']
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new_dirs = ['Desktop','Documents','Downloads','Music','Pictures','Videos']
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dirs = get_user_dirs(ip, share, "Documents and Settings", old_dirs)
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if dirs.blank?
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dirs = get_user_dirs(ip, share, "Users", new_dirs)
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end
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return dirs
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end
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def get_files_info(ip, rport, shares, info)
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read = false
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write = false
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# Creating a separate file for each IP address's results.
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detailed_tbl = Rex::Ui::Text::Table.new(
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'Header' => "Spidered results for #{ip}.",
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'Indent' => 1,
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'Columns' => [ 'IP Address', 'Type', 'Share', 'Path', 'Name', 'Created', 'Accessed', 'Written', 'Changed', 'Size' ]
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)
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logdata = ""
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list = shares.collect {|e| e[0]}
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list.each do |x|
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x = x.strip
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if x == "ADMIN$" or x == "IPC$"
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next
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end
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if not datastore['ShowFiles']
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print_status("#{ip}:#{rport} - Spidering #{x}.")
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end
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subdirs = [""]
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if x.strip() == "C$" and datastore['SpiderProfiles']
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subdirs = profile_options(ip, x)
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end
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while subdirs.length > 0
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depth = subdirs[0].count("\\")
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if datastore['SpiderProfiles'] and x == "C$"
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if depth-2 > datastore['MaxDepth']
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subdirs.shift
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next
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end
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else
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if depth > datastore['MaxDepth']
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subdirs.shift
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next
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end
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end
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read,write,type,files = eval_host(ip, x, subdirs[0])
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if files and (read or write)
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if files.length < 3
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subdirs.shift
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next
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end
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header = "#{ip}:#{rport}"
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if simple.client.default_domain and simple.client.default_name
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header << " \\\\#{simple.client.default_domain}"
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end
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header << "\\#{x.sub("C$","C$\\")}" if simple.client.default_name
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header << subdirs[0]
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pretty_tbl = Rex::Ui::Text::Table.new(
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'Header' => header,
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'Indent' => 1,
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'Columns' => [ 'Type', 'Name', 'Created', 'Accessed', 'Written', 'Changed', 'Size' ]
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)
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f_types = {
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1 => 'RO', 2 => 'HIDDEN', 4 => 'SYS', 8 => 'VOL',
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16 => 'DIR', 32 => 'ARC', 64 => 'DEV', 128 => 'FILE'
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}
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files.each do |file|
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if file[0] and file[0] != '.' and file[0] != '..'
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info = file[1]['info']
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fa = f_types[file[1]['attr']] # Item type
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fname = file[0] # Filename
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tcr = to_unix_time(info[3], info[2]) # Created
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tac = to_unix_time(info[5], info[4]) # Accessed
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twr = to_unix_time(info[7], info[6]) # Written
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tch = to_unix_time(info[9], info[8]) # Changed
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sz = info[12] + info[13] # Size
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# Filename is too long for the UI table, cut it.
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fname = "#{fname[0, 35]}..." if fname.length > 35
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# Add subdirectories to list to use if SpiderShare is enabled.
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if fa == "DIR" or (fa == nil and sz == 0)
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subdirs.push(subdirs[0] + "\\" + fname)
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end
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pretty_tbl << [fa || 'Unknown', fname, tcr, tac, twr, tch, sz]
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detailed_tbl << ["#{ip}", fa || 'Unknown', "#{x}", subdirs[0] + "\\", fname, tcr, tac, twr, tch, sz]
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logdata << "#{ip}\\#{x.sub("C$","C$\\")}#{subdirs[0]}\\#{fname}\n"
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end
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end
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print_good(pretty_tbl.to_s) if datastore['ShowFiles']
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end
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subdirs.shift
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end
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print_status("#{ip}:#{rport} - Spider #{x} complete.") unless datastore['ShowFiles'] == true
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end
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unless detailed_tbl.rows.empty?
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if datastore['LogSpider'] == '1'
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p = store_loot('smb.enumshares', 'text/csv', ip, detailed_tbl.to_csv)
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print_good("#{ip} - info saved in: #{p.to_s}")
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elsif datastore['LogSpider'] == '2'
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p = store_loot('smb.enumshares', 'text/plain', ip, detailed_tbl)
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print_good("#{ip} - info saved in: #{p.to_s}")
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elsif datastore['LogSpider'] == '3'
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p = store_loot('smb.enumshares', 'text/plain', ip, logdata)
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print_good("#{ip} - info saved in: #{p.to_s}")
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end
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end
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end
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def rport
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@rport || datastore['RPORT']
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end
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# Overrides the one in smb.rb
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def smb_direct
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@smb_redirect || datastore['SMBDirect']
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end
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def run_host(ip)
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@rport = datastore['RPORT']
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@smb_redirect = datastore['SMBDirect']
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@srvsvc = datastore['USE_SRVSVC_ONLY']
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shares = []
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[[139, false], [445, true]].each do |info|
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@rport = info[0]
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@smb_redirect = info[1]
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begin
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connect
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smb_login
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if @srvsvc
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shares = srvsvc_netshareenum(ip)
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else
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shares = lanman_netshareenum(ip, rport, info)
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end
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os_info = get_os_info(ip, rport)
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print_status("#{ip}:#{rport} - #{os_info}") if os_info
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if shares.empty?
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print_status("#{ip}:#{rport} - No shares collected")
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else
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shares_info = shares.map{|x| "#{ip}:#{rport} - #{x[0]} - (#{x[1]}) #{x[2]}" }.join(", ")
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shares_info.split(", ").each { |share|
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print_good share
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}
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report_note(
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:host => ip,
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:proto => 'tcp',
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:port => rport,
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:type => 'smb.shares',
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:data => { :shares => shares },
|
|
:update => :unique_data
|
|
)
|
|
|
|
if datastore['SpiderShares']
|
|
get_files_info(ip, rport, shares, info)
|
|
end
|
|
|
|
break if rport == 139
|
|
end
|
|
|
|
rescue ::Interrupt
|
|
raise $!
|
|
rescue ::Rex::Proto::SMB::Exceptions::LoginError,
|
|
::Rex::Proto::SMB::Exceptions::ErrorCode => e
|
|
print_error("#{ip}:#{rport} - #{e.message}")
|
|
return if e.message =~ /STATUS_ACCESS_DENIED/
|
|
rescue Errno::ECONNRESET,
|
|
::Rex::Proto::SMB::Exceptions::InvalidType,
|
|
::Rex::Proto::SMB::Exceptions::ReadPacket,
|
|
::Rex::Proto::SMB::Exceptions::InvalidCommand,
|
|
::Rex::Proto::SMB::Exceptions::InvalidWordCount,
|
|
::Rex::Proto::SMB::Exceptions::NoReply => e
|
|
vprint_error("#{ip}:#{rport} - #{e.message}")
|
|
next if not shares.empty? and rport == 139 # no results, try again
|
|
rescue Errno::ENOPROTOOPT
|
|
print_status("Wait 5 seconds before retrying...")
|
|
select(nil, nil, nil, 5)
|
|
retry
|
|
rescue ::Exception => e
|
|
next if e.to_s =~ /execution expired/
|
|
next if not shares.empty? and rport == 139
|
|
vprint_error("#{ip}:#{rport} - Error: '#{ip}' '#{e.class}' '#{e.to_s}'")
|
|
ensure
|
|
disconnect
|
|
end
|
|
|
|
# if we already got results, not need to try on another port
|
|
return unless shares.empty?
|
|
end
|
|
end
|
|
end
|
|
|