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Diffstat (limited to 'vendor/zendframework/zendxml/tests/ZendXmlTest/MultibyteTest.php')
-rw-r--r-- | vendor/zendframework/zendxml/tests/ZendXmlTest/MultibyteTest.php | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/vendor/zendframework/zendxml/tests/ZendXmlTest/MultibyteTest.php b/vendor/zendframework/zendxml/tests/ZendXmlTest/MultibyteTest.php new file mode 100644 index 00000000..165e8fa5 --- /dev/null +++ b/vendor/zendframework/zendxml/tests/ZendXmlTest/MultibyteTest.php @@ -0,0 +1,125 @@ +<?php +/** + * Zend Framework (http://framework.zend.com/) + * + * @link http://github.com/zendframework/zf2 for the canonical source repository + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +namespace ZendTest\Xml; + +use ZendXml\Security as XmlSecurity; +use ZendXml\Exception; +use DOMDocument; +use ReflectionMethod; +use SimpleXMLElement; + +/** + * @group ZF2015-06 + */ +class MultibyteTest extends \PHPUnit_Framework_TestCase +{ + public function multibyteEncodings() + { + return array( + 'UTF-16LE' => array('UTF-16LE', pack('CC', 0xff, 0xfe), 3), + 'UTF-16BE' => array('UTF-16BE', pack('CC', 0xfe, 0xff), 3), + 'UTF-32LE' => array('UTF-32LE', pack('CCCC', 0xff, 0xfe, 0x00, 0x00), 4), + 'UTF-32BE' => array('UTF-32BE', pack('CCCC', 0x00, 0x00, 0xfe, 0xff), 4), + ); + } + + public function getXmlWithXXE() + { + return <<<XML +<?xml version="1.0" encoding="{ENCODING}"?> +<!DOCTYPE methodCall [ + <!ENTITY pocdata SYSTEM "file:///etc/passwd"> +]> +<methodCall> + <methodName>retrieved: &pocdata;</methodName> +</methodCall> +XML; + } + + /** + * Invoke ZendXml\Security::heuristicScan with the provided XML. + * + * @param string $xml + * @return void + * @throws Exception\RuntimeException + */ + public function invokeHeuristicScan($xml) + { + $r = new ReflectionMethod('ZendXml\Security', 'heuristicScan'); + $r->setAccessible(true); + return $r->invoke(null, $xml); + } + + /** + * @dataProvider multibyteEncodings + * @group heuristicDetection + */ + public function testDetectsMultibyteXXEVectorsUnderFPMWithEncodedStringMissingBOM($encoding, $bom, $bomLength) + { + $xml = $this->getXmlWithXXE(); + $xml = str_replace('{ENCODING}', $encoding, $xml); + $xml = iconv('UTF-8', $encoding, $xml); + $this->assertNotSame(0, strncmp($xml, $bom, $bomLength)); + $this->setExpectedException('ZendXml\Exception\RuntimeException', 'ENTITY'); + $this->invokeHeuristicScan($xml); + } + + /** + * @dataProvider multibyteEncodings + */ + public function testDetectsMultibyteXXEVectorsUnderFPMWithEncodedStringUsingBOM($encoding, $bom) + { + $xml = $this->getXmlWithXXE(); + $xml = str_replace('{ENCODING}', $encoding, $xml); + $orig = iconv('UTF-8', $encoding, $xml); + $xml = $bom . $orig; + $this->setExpectedException('ZendXml\Exception\RuntimeException', 'ENTITY'); + $this->invokeHeuristicScan($xml); + } + + public function getXmlWithoutXXE() + { + return <<<XML +<?xml version="1.0" encoding="{ENCODING}"?> +<methodCall> + <methodName>retrieved: &pocdata;</methodName> +</methodCall> +XML; + } + + /** + * @dataProvider multibyteEncodings + */ + public function testDoesNotFlagValidMultibyteXmlAsInvalidUnderFPM($encoding) + { + $xml = $this->getXmlWithoutXXE(); + $xml = str_replace('{ENCODING}', $encoding, $xml); + $xml = iconv('UTF-8', $encoding, $xml); + try { + $result = $this->invokeHeuristicScan($xml); + $this->assertNull($result); + } catch (\Exception $e) { + $this->fail('Security scan raised exception when it should not have'); + } + } + + /** + * @dataProvider multibyteEncodings + * @group mixedEncoding + */ + public function testDetectsXXEWhenXMLDocumentEncodingDiffersFromFileEncoding($encoding, $bom) + { + $xml = $this->getXmlWithXXE(); + $xml = str_replace('{ENCODING}', 'UTF-8', $xml); + $xml = iconv('UTF-8', $encoding, $xml); + $xml = $bom . $xml; + $this->setExpectedException('ZendXml\Exception\RuntimeException', 'ENTITY'); + $this->invokeHeuristicScan($xml); + } +} |