Clarify vulnerable versions

Author: wvu

modules/exploits/osx/local/rootpipe.rb

@@ -40,14 +40,14 @@ def initialize(info = {})
       'Arch' => ARCH_X86_64,
       'SessionTypes' => ['shell', 'meterpreter'],
       'Targets' => [
-        ['Mac OS X 10.10.2 Yosemite x64 (Native Payload)', {}]
+        ['Mac OS X 10.9-10.10.2 x64 (Native Payload)', {}]
       ],
       'DefaultTarget' => 0
     ))
   end
 
   def check
-    if ver_lt(osx_ver, '10.10.3')
+    if ver_between(osx_ver, '10.9', '10.10.2')
       Exploit::CheckCode::Vulnerable
     else
       Exploit::CheckCode::Safe
@@ -78,8 +78,8 @@ def osx_ver
     cmd_exec('sw_vers -productVersion').to_s.strip
   end
 
-  def ver_lt(a, b)
-    Gem::Version.new(a) < Gem::Version.new(b)
+  def ver_between(a, b, c)
+    Gem::Version.new(a).between?(Gem::Version.new(b), Gem::Version.new(c))
   end
 
 end