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43 lines
1.1 KiB
PHP
43 lines
1.1 KiB
PHP
--TEST--
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libxml_disable_entity_loader()
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--SKIPIF--
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<?php if (!extension_loaded('libxml') || !extension_loaded('dom')) die('skip'); ?>
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--FILE--
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<?php
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$xml = <<<EOT
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE test [<!ENTITY xxe SYSTEM "XXE_URI">]>
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<foo>&xxe;</foo>
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EOT;
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$dir = str_replace('\\', '/', __DIR__);
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$xml = str_replace('XXE_URI', $dir . '/libxml_disable_entity_loader_payload.txt', $xml);
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function parseXML($xml) {
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$doc = new DOMDocument();
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$doc->resolveExternals = true;
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$doc->substituteEntities = true;
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$doc->validateOnParse = false;
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$doc->loadXML($xml, 0);
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return $doc->saveXML();
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}
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var_dump(strpos(parseXML($xml), 'SECRET_DATA') !== false);
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var_dump(libxml_disable_entity_loader(true));
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var_dump(strpos(parseXML($xml), 'SECRET_DATA') === false);
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echo "Done\n";
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?>
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--EXPECTF--
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bool(true)
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bool(false)
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Warning: DOMDocument::loadXML(): I/O warning : failed to load external entity "%s" in %s on line %d
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Warning: DOMDocument::loadXML(): Failure to process entity xxe in Entity, line: %d in %s on line %d
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Warning: DOMDocument::loadXML(): Entity 'xxe' not defined in Entity, line: %d in %s on line %d
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bool(true)
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Done
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