(Metasploit:
MS08-067)
{ Using the MsfGUI to
Grab A Shell and Transfer a File }
0. Background
Information |
-
http://www.microsoft.com/technet/security/bulletin/ms08-067.mspx
- The vulnerability could allow remote code
execution if an affected system received a specially crafted RPC
request. On Microsoft Windows 2000, Windows XP, and Windows Server 2003
systems, an attacker could exploit this vulnerability without
authentication to run arbitrary code. It is possible that this
vulnerability could be used in the crafting of a wormable exploit.
- Firewall best practices and standard default firewall configurations can
help protect network resources from attacks that originate outside the
enterprise perimeter.
- Login to your
WindowsVulnerable VM, as username
instructor
- For those of you that are not part of this
class,
this is a Windows XP machines that is vulnerable to the MS08-067
Vulnerability.
- On WindowsVulnerable01, obtain the IP Address.
- START --> run --> cmd --> ifconfig
- In my case, WindowsVulnerable01's IP
Address 192.168.1.120.
- Login to your
Backtrack01 VM, as username root
- startx
- Issue the startx command if you are
currently are only seeing a console and not a graphical user interface.
2. Confirm
Backtrack01 has an IP Address |
- Fire up a console or terminal window
- System --> Konsole
- ifconfig
- Example: No IP Address for eth0
- If a valid IP address for eth0 is not
displayed please move onto step 3.
- Example: Valid IP Address for eth0
- vi /etc/network/interfaces
- Your file should look similar to the below
screen shot
- cd /etc/init.d/
- ./networking start
- Confirm you have a valid IP address for eth0
- In my case, eth0's IP address is
192.168.1.117.
3. Stop Firewall on
Backtrack01 |
- Start Firestarter
- System --> Firestarter
- Click on Stop Firewall
5. Starting up the
Metasploit MsfGUI |
- Fire up the MsfGUI (See Below)
- Note It might take a while to start.
- Once the Msf-GUI Loads, you will a similar
screen (See Below)
6. Searching For
Exploits |
- search ms08_067 (See Below)
- Below we are searching for any exploits
involving Microsoft Advisory MS08-067.
- After inputting MS08-067 into the text box
click the Find Button.
- Only one exploit is returned (ms08_067_netapi)
- Double click on ms08_067_netapi
- Keep the default, Automatic Targeting, Then
Select Forward.
- Select PAYLOAD windows/reflectivemeterpreter/bind_tcp,
Then Click Forward (See Below)
- Enter WindowsVulnerable01 IP Address into the
RHOST text box (See Below)
- Then Click Forward.
- Run Exploit
- Confirm Settings
- Then Click Apply
7. Using the exploit
to gain a command prompt |
- Verify Job is Complete
- Once the exploit job completes, you will
see a session has been established to the victim IP Address.
- Establish an Interactive Session
- Right Click on highlighted meterpreter
session
- Merry Christmas and A Happy Command line prompt
- Click the Close Button when finished.
8. Using the exploit
to browse the victim's directories and files |
- Right Click on the Meterpreter Session
- Select Browse
- Windows Explorer Type of Browser (See Below)
- Notice that the left side belongs to
Backtrack and the right side belongs to the Window system.
- Navigate to the Windows Desktop
- Click on the UP Arrow until you get to
“C:\”
- Click on Documents and Settings
- Click on All Users
- Click on Desktop
9. Create backtrack
text file or use your imagination |
- Create File on BackTrack
- Minimize all Windows on your BackTrack VM.
- Right Click on the BackTrack VM Desktop.
- Highlight Create New
- Select Text File
- NOTE: I
am sure you can be more imaginative than a text file; however, we are
being ethical.
- Enter Filename
- Call it "h@ck3d.txt"
- Select OK.
- Double Click on File
- Select New Session
- Enter text similar to the below.
- Make Sure you include your name and date.
- For
Proof of Lab, do a screen print of this step and submit to Moodle.
10. Transfer File
From Backtrack to Windows Victim |
- On Your BackTrack VM
- Pull up your msfbrowser (See Below)
- Click the Up Arrow until you get to "/"
- Click on root
- Click on Desktop
- Drag and Drop
- Highlight the h@ck3d.txt file on the
BackTrack VM Side.
- Drag the h@ck3d.txt file to the Window's
side.
- On WindowsVulnerable01
- Search for h@ck3d.txt on the desktop.
- Verify Contents of Files.
- That's All Folks.
- Cut and Paste a screen shot that looks similar
to Step #5 in Section 9 into a word document
and upload to Moodle.
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