Module: Msf::Exploit::Remote::WDBRPC_Client

Includes:
Auxiliary::Report, WDBRPC
Defined in:
lib/msf/core/exploit/wdbrpc_client.rb

Overview

This module exposes methods for talking to WDBRPC daemons

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Auxiliary::Report

#db, #get_client, #get_host, #inside_workspace_boundary?, #mytask, #myworkspace, #report_auth_info, #report_client, #report_exploit, #report_host, #report_loot, #report_note, #report_service, #report_vuln, #report_web_form, #report_web_page, #report_web_site, #report_web_vuln, #store_cred, #store_local, #store_loot

Methods included from WDBRPC

#wdbrpc_checksum, #wdbrpc_decode_arr, #wdbrpc_decode_bool, #wdbrpc_decode_int, #wdbrpc_decode_str, #wdbrpc_parse_connect_reply, #wdbrpc_request, #wdbrpc_request_connect, #wdbrpc_request_connect2, #wdbrpc_request_context_kill, #wdbrpc_request_disconnect, #wdbrpc_request_memread, #wdbrpc_request_memscan, #wdbrpc_request_memwrite, #wdbrpc_request_regread, #wdbrpc_request_seqno

Instance Attribute Details

#udp_sockObject

Returns the value of attribute udp_sock


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 16

def udp_sock
  @udp_sock
end

#wdbrpc_infoObject

Returns the value of attribute wdbrpc_info


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 16

def wdbrpc_info
  @wdbrpc_info
end

Instance Method Details

#initialize(info = {}) ⇒ Object


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 18

def initialize(info = {})
  super
  register_options(
    [
      Opt::RHOST,
      Opt::RPORT(17185),
    ], Msf::Exploit::Remote::WDBRPC_Client)
end

#rhostObject


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 209

def rhost
  datastore['RHOST']
end

#rportObject


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 213

def rport
  datastore['RPORT'].to_i
end

#wdbrpc_client_connectObject


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 28

def wdbrpc_client_connect
  self.wdbrpc_info = {}

  wdbrpc_client_disconnect()

  self.udp_sock = Rex::Socket::Udp.create(
    {
      'Context' => {'Msf' => framework, 'MsfExploit' => self}
    }
  )
  add_socket(self.udp_sock)

  wdbrpc_client_send_disconnect()

  udp_sock.sendto(wdbrpc_request_connect(rhost), rhost, rport, 0)
  res,src = udp_sock.recvfrom(65535, 5)
  if not res
    print_error("No response to TARGET_CONNECT (WDB4)")
    return
  end


  if res.length > 0 and res.length < 80
    print_status("#{rhost}: Unknown response: '#{res.unpack("H*")[0]}'")
    return
  end

  if res.empty?
    print_error("#{rhost}: No response from the target")
    return
  end

  self.wdbrpc_info = wdbrpc_parse_connect_reply(res)
  print_status("#{rhost} Connected to #{self.wdbrpc_info[:rt_vers]} - #{self.wdbrpc_info[:rt_bsp_name]} (#{self.wdbrpc_info[:rt_bootline]})")

  report_note(
    :host   => rhost,
    :port   => rport,
    :proto  => 'udp',
    :type   => 'vxworks.target_info',
    :data   => res,
    :update => :unique
  )
end

#wdbrpc_client_connect2Object


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 73

def wdbrpc_client_connect2
  self.wdbrpc_info = {}

  wdbrpc_client_disconnect()

  self.udp_sock = Rex::Socket::Udp.create(
    {
      'Context' => {'Msf' => framework, 'MsfExploit' => self}
    }
  )
  add_socket(self.udp_sock)

  wdbrpc_client_send_disconnect()

  udp_sock.sendto(wdbrpc_request_connect2(rhost), rhost, rport, 0)
  res,src = udp_sock.recvfrom(65535, 5)
  if not res
    print_error("No response to TARGET_CONNECT2")
    return
  end

  if res.length < 80
    print_status("#{rhost}: Unknown response: '#{res.unpack("H*")[0]}'")
    return
  end

  self.wdbrpc_info = wdbrpc_parse_connect_reply(res)
  print_status("#{rhost} Connected to #{self.wdbrpc_info[:rt_vers]} - #{self.wdbrpc_info[:rt_bsp_name]} (#{self.wdbrpc_info[:rt_bootline]})")

  report_note(
    :host   => rhost,
    :port   => rport,
    :proto  => 'udp',
    :type   => 'vxworks.target_info',
    :data   => res,
    :update => :unique
  )
end

#wdbrpc_client_context_kill(ctx_type = 0, ctx = 0) ⇒ Object


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 171

def wdbrpc_client_context_kill(ctx_type=0, ctx=0)
  pkt = wdbrpc_request_context_kill(ctx_type, ctx)
  res = nil

  begin
    udp_sock.sendto(pkt, rhost, rport, 0)
    res,src = udp_sock.recvfrom(65535, 0.5)

  rescue ::Interrupt
    raise $!
  rescue ::Exception
  end
  res
end

#wdbrpc_client_disconnectObject


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 199

def wdbrpc_client_disconnect
  wdbrpc_client_send_disconnect

  if self.udp_sock
    self.udp_sock.close rescue nil
  end
  self.udp_sock = nil

end

#wdbrpc_client_memread(offset, length, params = 0) ⇒ Object


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 112

def wdbrpc_client_memread(offset, length, params=0)
  pkt = wdbrpc_request_memread(offset, length, params)
  cnt = 0
  res = nil

  begin
    udp_sock.sendto(pkt, rhost, rport, 0)
    res,src = udp_sock.recvfrom(65535, 0.5)
    if not res and src
      raise RuntimeError, "no reply"
    end

    if res.length <= 48
      raise RuntimeError, "short read"
    end

  rescue ::Interrupt
    raise $!
  rescue ::Exception
    if cnt < 120
      cnt += 1
      retry
    end
  end

  res[48,res.length-48]
end

#wdbrpc_client_memscan(offset, depth, buffer, params = 0) ⇒ Object


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 155

def wdbrpc_client_memscan(offset, depth, buffer, params=0)
  pkt = wdbrpc_request_memscan(offset, depth, buffer, params)
  cnt = 0
  res = nil

  udp_sock.sendto(pkt, rhost, rport, 0)
  res,src = udp_sock.recvfrom(65535, 5.0)

  if not res and src
    raise RuntimeError, "no reply"
  end
  p res
  res
end

#wdbrpc_client_memwrite(offset, buffer, params = 0) ⇒ Object


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 140

def wdbrpc_client_memwrite(offset, buffer, params=0)
  pkt = wdbrpc_request_memwrite(offset, buffer, params)
  cnt = 0
  res = nil

  udp_sock.sendto(pkt, rhost, rport, 0)
  res,src = udp_sock.recvfrom(65535, 5.0)

  if not res and src
    raise RuntimeError, "no reply"
  end
  res[-4,4].unpack("N")[0]
end

#wdbrpc_client_send_disconnectObject


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# File 'lib/msf/core/exploit/wdbrpc_client.rb', line 186

def wdbrpc_client_send_disconnect
  pkt = wdbrpc_request_disconnect
  begin
    if self.udp_sock
      self.udp_sock.sendto(pkt, rhost, rport, 0)
      self.udp_sock.recvfrom(65535, 5)
    end
  rescue ::Interrupt
    raise $!
  rescue ::Exception
  end
end