Sec Bug->Bug #70405 [Opn->Nab]: Exploit

From: Date: Wed, 02 Sep 2015 10:14:26 +0000
Subject: Sec Bug->Bug #70405 [Opn->Nab]: Exploit
References: 1  Groups: php.standards 
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Edit report at https://bugs.php.net/bug.php?id=70405&edit=1 ID: 70405 Updated by: kalle@php.net Reported by: incubeftw at gmail dot com Summary: Exploit -Status: Open +Status: Not a bug -Type: Security +Type: Bug Package: PHP Language Specification Operating System: Ubuntu 15.04 PHP Version: 7.0.0RC1 Block user comment: N Private report: Y New Comment: This is not a bug. The private and protected keywords are visibility modifiers, meaning they allow you to modify (or not) on certain properties. Checkout the documentation[1] for var_dump(), it is already explicitly written there that no matter the visibility modifiers are for properties, everything is read. The object to array cast is described here[2]. [1] http://php.net/var_dump [2] http://php.net/language.types.array#language.types.array.casting Previous Comments: ------------------------------------------------------------------------ [2015-09-02 09:55:33] incubeftw at gmail dot com Description: ------------ You can access any variable READ-ONLY on every class by dumping it. Getting it's value is even easier since you can just cast it to an array and then dump it to file. It does NOT matter if it is a protected variable or not. Test script: --------------- <?php class A { private $mysqlUser = 'root'; protected $mysqlPassword = 'test'; private $mysqlDatabase = 'myDatabase'; } $classA = new A(); echo "<pre>"; // Exploit #1 var_dump($classA); // Exploit #2 foreach((array)$classA as $x => $y) { echo "X => ".$x." Y => ".$y."\n"; } ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=70405&edit=1

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