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<title>[Tests][1010] trunk/tests/kses.php: Kses unit tests.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://unit-tests.trac.wordpress.org/changeset/1010">1010</a></dd>
<dt>Author</dt> <dd>ryan</dd>
<dt>Date</dt> <dd>2012-09-07 20:11:29 +0000 (Fri, 07 Sep 2012)</dd>
</dl>
<h3>Log Message</h3>
<pre>Kses unit tests. Props duck_</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunktestsksesphp">trunk/tests/kses.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunktestsksesphp"></a>
<div class="modfile"><h4>Modified: trunk/tests/kses.php (1009 => 1010)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/tests/kses.php 2012-09-05 20:12:41 UTC (rev 1009)
+++ trunk/tests/kses.php 2012-09-07 20:11:29 UTC (rev 1010)
</span><span class="lines">@@ -100,6 +100,199 @@
</span><span class="cx"> <a href="">CLICK ME</a>
</span><span class="cx"> EOF;
</span><span class="cx">
</span><del>- $this->assertEquals( $expected, wp_kses( $content, $allowedposttags ) );
</del><ins>+ $this->assertEquals( $expected, wp_kses( $content, $allowedposttags ) );
</ins><span class="cx"> }
</span><ins>+
+ function test_wp_kses_bad_protocol() {
+ $bad = array(
+ 'dummy:alert(1)',
+ 'javascript:alert(1)',
+ 'JaVaScRiPt:alert(1)',
+ 'javascript:alert(1);',
+ 'javascript&#58;alert(1);',
+ 'javascript&#0058;alert(1);',
+ 'javascript&#0000058alert(1);',
+ 'javascript&#x3A;alert(1);',
+ 'javascript&#X3A;alert(1);',
+ 'javascript&#X3a;alert(1);',
+ 'javascript&#x3a;alert(1);',
+ 'javascript&#x003a;alert(1);',
+ '&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72&#x74&#x28&#x27&#x58&#x53&#x53&#x27&#x29',
+ 'jav ascript:alert(1);',
+ 'jav&#x09;ascript:alert(1);',
+ 'jav&#x0A;ascript:alert(1);',
+ 'jav&#x0D;ascript:alert(1);',
+ ' &#14; javascript:alert(1);',
+ 'javascript:javascript:alert(1);',
+ 'javascript&#58;javascript:alert(1);',
+ 'javascript&#0000058javascript:alert(1);',
+ 'javascript:javascript&#58;alert(1);',
+ 'javascript:javascript&#0000058alert(1);',
+ 'javascript&#0000058alert(1)//?:',
+ 'feed:javascript:alert(1)',
+ 'feed:javascript:feed:javascript:feed:javascript:alert(1)',
+ );
+ foreach ( $bad as $k => $x ) {
+ $result = wp_kses_bad_protocol( wp_kses_normalize_entities( $x ), wp_allowed_protocols() );
+ if ( ! empty( $result ) && $result != 'alert(1);' && $result != 'alert(1)' ) {
+ switch ( $k ) {
+ case 6: $this->assertEquals( 'javascript&amp;#0000058alert(1);', $result ); break;
+ case 12:
+ $this->assertEquals( str_replace( '&', '&amp;', $x ), $result );
+ break;
+ case 22: $this->assertEquals( 'javascript&amp;#0000058alert(1);', $result ); break;
+ case 23: $this->assertEquals( 'javascript&amp;#0000058alert(1)//?:', $result ); break;
+ case 24: $this->assertEquals( 'feed:alert(1)', $result ); break;
+ default: $this->fail( "wp_kses_bad_protocol failed on $x. Result: $result" );
+ }
+ }
+ }
+
+ $safe = array(
+ 'dummy:alert(1)',
+ 'HTTP://example.org/',
+ 'http://example.org/',
+ 'http&#58;//example.org/',
+ 'http&#x3A;//example.org/',
+ 'https://example.org',
+ 'http://example.org/wp-admin/post.php?post=2&amp;action=edit',
+ 'http://example.org/index.php?test=&#039;blah&#039;',
+ );
+ foreach ( $safe as $x ) {
+ $result = wp_kses_bad_protocol( wp_kses_normalize_entities( $x ), array( 'http', 'https', 'dummy' ) );
+ if ( $result != $x && $result != 'http://example.org/' )
+ $this->fail( "wp_kses_bad_protocol incorrectly blocked $x" );
+ }
+ }
+
+ public function test_hackers_attacks() {
+ $xss = simplexml_load_file( DIR_TESTDATA . '/formatting/xssAttacks.xml' );
+ foreach ( $xss->attack as $attack ) {
+ if ( in_array( $attack->name, array( 'IMG Embedded commands 2', 'US-ASCII encoding', 'OBJECT w/Flash 2', 'Character Encoding Example' ) ) )
+ continue;
+
+ $code = (string) $attack->code;
+
+ if ( $code == 'See Below' )
+ continue;
+
+ if ( substr( $code, 0, 4 ) == 'perl' ) {
+ $pos = strpos( $code, '"' ) + 1;
+ $code = substr( $code, $pos, strrpos($code, '"') - $pos );
+ $code = str_replace( '\0', "\0", $code );
+ }
+
+ $result = trim( wp_kses_data( $code ) );
+
+ if ( $result == '' || $result == 'XSS' || $result == 'alert("XSS");' || $result == "alert('XSS');" )
+ continue;
+
+ switch ( $attack->name ) {
+ case 'XSS Locator':
+ $this->assertEquals('\';alert(String.fromCharCode(88,83,83))//\\\';alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//\\";alert(String.fromCharCode(88,83,83))//--&gt;"&gt;\'&gt;alert(String.fromCharCode(88,83,83))=', $result);
+ break;
+ case 'XSS Quick Test':
+ $this->assertEquals('\'\';!--"=', $result);
+ break;
+ case 'SCRIPT w/Alert()':
+ $this->assertEquals( "alert('XSS')", $result );
+ break;
+ case 'SCRIPT w/Char Code':
+ $this->assertEquals('alert(String.fromCharCode(88,83,83))', $result);
+ break;
+ case 'IMG STYLE w/expression':
+ $this->assertEquals('exp/*', $result);
+ break;
+ case 'List-style-image':
+ $this->assertEquals('li {list-style-image: url("javascript:alert(\'XSS\')");}XSS', $result);
+ break;
+ case 'STYLE':
+ $this->assertEquals( "alert('XSS');", $result);
+ break;
+ case 'STYLE w/background-image':
+ $this->assertEquals('.XSS{background-image:url("javascript:alert(\'XSS\')");}<A></A>', $result);
+ break;
+ case 'STYLE w/background':
+ $this->assertEquals('BODY{background:url("javascript:alert(\'XSS\')")}', $result);
+ break;
+ case 'Remote Stylesheet 2':
+ $this->assertEquals( "@import'http://ha.ckers.org/xss.css';", $result );
+ break;
+ case 'Remote Stylesheet 3':
+ $this->assertEquals( '&lt;META HTTP-EQUIV=&quot;Link&quot; Content=&quot;; REL=stylesheet"&gt;', $result );
+ break;
+ case 'Remote Stylesheet 4':
+ $this->assertEquals('BODY{-moz-binding:url("http://ha.ckers.org/xssmoz.xml#xss")}', $result);
+ break;
+ case 'XML data island w/CDATA':
+ $this->assertEquals( "&lt;![CDATA[]]&gt;", $result );
+ break;
+ case 'XML data island w/comment':
+ $this->assertEquals( "<I><B>&lt;IMG SRC=&quot;javas<!-- -->cript:alert('XSS')\"&gt;</B></I>", $result );
+ break;
+ case 'XML HTML+TIME':
+ $this->assertEquals( '&lt;t:set attributeName=&quot;innerHTML&quot; to=&quot;XSSalert(\'XSS\')"&gt;', $result );
+ break;
+ case 'Commented-out Block':
+ $this->assertEquals( "<!--[if gte IE 4]&gt;-->\nalert('XSS');", $result );
+ break;
+ case 'Cookie Manipulation':
+ $this->assertEquals( '&lt;META HTTP-EQUIV=&quot;Set-Cookie&quot; Content=&quot;USERID=alert(\'XSS\')"&gt;', $result );
+ break;
+ case 'SSI':
+ $this->assertEquals( '&lt;!--#exec cmd=&quot;/bin/echo &#039;<!--#exec cmd="/bin/echo \'=http://ha.ckers.org/xss.js&gt;\'"-->', $result );
+ break;
+ case 'PHP':
+ $this->assertEquals( '&lt;? echo(&#039;alert("XSS")\'); ?&gt;', $result );
+ break;
+ case 'UTF-7 Encoding':
+ $this->assertEquals( '+ADw-SCRIPT+AD4-alert(\'XSS\');+ADw-/SCRIPT+AD4-', $result );
+ break;
+ case 'Escaping JavaScript escapes':
+ $this->assertEquals('\";alert(\'XSS\');//', $result);
+ break;
+ case 'STYLE w/broken up JavaScript':
+ $this->assertEquals( '@im\port\'\ja\vasc\ript:alert("XSS")\';', $result );
+ break;
+ case 'Null Chars 2':
+ $this->assertEquals( '&amp;alert("XSS")', $result );
+ break;
+ case 'No Closing Script Tag':
+ $this->assertEquals( '&lt;SCRIPT SRC=http://ha.ckers.org/xss.js', $result );
+ break;
+ case 'Half-Open HTML/JavaScript':
+ $this->assertEquals( '&lt;IMG SRC=&quot;javascript:alert(&#039;XSS&#039;)&quot;', $result );
+ break;
+ case 'Double open angle brackets':
+ $this->assertEquals( '&lt;IFRAME SRC=http://ha.ckers.org/scriptlet.html &lt;', $result );
+ break;
+ case 'Extraneous Open Brackets':
+ $this->assertEquals( '&lt;alert("XSS");//&lt;', $result );
+ break;
+ case 'Malformed IMG Tags':
+ $this->assertEquals('alert("XSS")"&gt;', $result);
+ break;
+ case 'No Quotes/Semicolons':
+ $this->assertEquals( "a=/XSS/\nalert(a.source)", $result );
+ break;
+ case 'Evade Regex Filter 1':
+ $this->assertEquals( '" SRC="http://ha.ckers.org/xss.js"&gt;', $result );
+ break;
+ case 'Evade Regex Filter 4':
+ $this->assertEquals( '\'" SRC="http://ha.ckers.org/xss.js"&gt;', $result );
+ break;
+ case 'Evade Regex Filter 5':
+ $this->assertEquals( '` SRC="http://ha.ckers.org/xss.js"&gt;', $result );
+ break;
+ case 'Filter Evasion 1':
+ $this->assertEquals( 'document.write("&lt;SCRI&quot;);PT SRC="http://ha.ckers.org/xss.js"&gt;', $result );
+ break;
+ case 'Filter Evasion 2':
+ $this->assertEquals( '\'&gt;" SRC="http://ha.ckers.org/xss.js"&gt;', $result );
+ break;
+ default:
+ $this->fail( 'KSES failed on ' . $attack->name . ': ' . $result );
+ }
+ }
+ }
</ins><span class="cx"> }
</span></span></pre>
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