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- --TEST--
- Bug #61367: open_basedir bypass in libxml RSHUTDOWN: read test
- --SKIPIF--
- <?php if(!extension_loaded('dom')) echo 'skip'; ?>
- --INI--
- open_basedir=.
- error_reporting=E_ALL & ~E_NOTICE
- --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
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