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902d64390e
Writing to a proprety that hasn't been declared is deprecated, unless the class uses the #[AllowDynamicProperties] attribute or defines __get()/__set(). RFC: https://wiki.php.net/rfc/deprecate_dynamic_properties
69 lines
1.8 KiB
PHP
69 lines
1.8 KiB
PHP
--TEST--
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Bug #61367: open_basedir bypass in libxml RSHUTDOWN: read test
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--EXTENSIONS--
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dom
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--SKIPIF--
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<?php
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if (LIBXML_VERSION >= 20912) die('skip For libxml2 < 2.9.12 only');
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?>
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--INI--
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open_basedir=.
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--FILE--
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<?php
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/*
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* Note: Using error_reporting=E_ALL & ~E_NOTICE to suppress "Trying to get property of non-object" notices.
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*/
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class StreamExploiter {
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public $context;
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public function stream_close ( ) {
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$doc = new DOMDocument;
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$doc->resolveExternals = true;
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$doc->substituteEntities = true;
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$dir = htmlspecialchars(dirname(getcwd()));
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$dir = str_replace('\\', '/', $dir); // fix for windows
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$doc->loadXML( <<<XML
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<!DOCTYPE doc [
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<!ENTITY file SYSTEM "file:///$dir/bad">
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]>
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<doc>&file;</doc>
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XML
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);
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print $doc->documentElement->firstChild->nodeValue;
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}
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public function stream_open ( $path , $mode , $options , &$opened_path ) {
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return true;
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}
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}
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var_dump(mkdir('test_bug_61367-read'));
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var_dump(mkdir('test_bug_61367-read/base'));
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var_dump(file_put_contents('test_bug_61367-read/bad', 'blah'));
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var_dump(chdir('test_bug_61367-read/base'));
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stream_wrapper_register( 'exploit', 'StreamExploiter' );
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$s = fopen( 'exploit://', 'r' );
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?>
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--CLEAN--
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<?php
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unlink('test_bug_61367-read/bad');
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rmdir('test_bug_61367-read/base');
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rmdir('test_bug_61367-read');
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?>
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--EXPECTF--
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bool(true)
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bool(true)
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int(4)
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bool(true)
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Warning: DOMDocument::loadXML(): I/O warning : failed to load external entity "file:///%s/test_bug_61367-read/bad" in %s on line %d
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Warning: DOMDocument::loadXML(): Failure to process entity file in Entity, line: 4 in %s on line %d
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Warning: DOMDocument::loadXML(): Entity 'file' not defined in Entity, line: 4 in %s on line %d
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Warning: Attempt to read property "firstChild" on null in %s on line %d
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Warning: Attempt to read property "nodeValue" on null in %s on line %d
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