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|
--TEST--
Bug #61367: open_basedir bypass in libxml RSHUTDOWN: read test
--SKIPIF--
<?php if(!extension_loaded('dom')) echo 'skip dom extension not available'; ?>
--INI--
open_basedir=.
--FILE--
<?php
/*
* Note: Using error_reporting=E_ALL & ~E_NOTICE to suppress "Trying to get property of non-object" notices.
*/
class StreamExploiter {
public function stream_close ( ) {
$doc = new DOMDocument;
$doc->resolveExternals = true;
$doc->substituteEntities = true;
$dir = htmlspecialchars(dirname(getcwd()));
$dir = str_replace('\\', '/', $dir); // fix for windows
$doc->loadXML( <<<XML
<!DOCTYPE doc [
<!ENTITY file SYSTEM "file:///$dir/bad">
]>
<doc>&file;</doc>
XML
);
print $doc->documentElement->firstChild->nodeValue;
}
public function stream_open ( $path , $mode , $options , &$opened_path ) {
return true;
}
}
var_dump(mkdir('test_bug_61367-read'));
var_dump(mkdir('test_bug_61367-read/base'));
var_dump(file_put_contents('test_bug_61367-read/bad', 'blah'));
var_dump(chdir('test_bug_61367-read/base'));
stream_wrapper_register( 'exploit', 'StreamExploiter' );
$s = fopen( 'exploit://', 'r' );
?>
--CLEAN--
<?php
unlink('test_bug_61367-read/bad');
rmdir('test_bug_61367-read/base');
rmdir('test_bug_61367-read');
?>
--EXPECTF--
bool(true)
bool(true)
int(4)
bool(true)
Warning: DOMDocument::loadXML(): I/O warning : failed to load external entity "file:///%s/test_bug_61367-read/bad" in %s on line %d
Warning: DOMDocument::loadXML(): Failure to process entity file in Entity, line: 4 in %s on line %d
Warning: DOMDocument::loadXML(): Entity 'file' not defined in Entity, line: 4 in %s on line %d
Warning: Trying to get property 'firstChild' of non-object in %s on line %d
Warning: Trying to get property 'nodeValue' of non-object in %s on line %d
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