blob: d72a9b21d683769bbf7814fc9e5c1c4b678a4354 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
--TEST--
libxml_disable_entity_loader()
--SKIPIF--
<?php
if (!extension_loaded('libxml')) die('skip libxml extension not available');
if (!extension_loaded('dom')) die('skip dom extension not available');
--FILE--
<?php
$xml = <<<EOT
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE test [<!ENTITY xxe SYSTEM "XXE_URI">]>
<foo>&xxe;</foo>
EOT;
$dir = str_replace('\\', '/', __DIR__);
$xml = str_replace('XXE_URI', $dir . '/libxml_disable_entity_loader_payload.txt', $xml);
function parseXML($xml) {
$doc = new DOMDocument();
$doc->resolveExternals = true;
$doc->substituteEntities = true;
$doc->validateOnParse = false;
$doc->loadXML($xml, 0);
return $doc->saveXML();
}
var_dump(strpos(parseXML($xml), 'SECRET_DATA') !== false);
var_dump(libxml_disable_entity_loader(true));
var_dump(strpos(parseXML($xml), 'SECRET_DATA') === false);
echo "Done\n";
?>
--EXPECTF--
bool(true)
Deprecated: Function libxml_disable_entity_loader() is deprecated in %s on line %d
bool(false)
Warning: DOMDocument::loadXML(): I/O warning : failed to load external entity "%s" in %s on line %d
Warning: DOMDocument::loadXML(): Failure to process entity xxe in Entity, line: %d in %s on line %d
Warning: DOMDocument::loadXML(): Entity 'xxe' not defined in Entity, line: %d in %s on line %d
bool(true)
Done
|
