public void AnchorTagContentReplaceXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://www.gohttp://www.google.com/ogle.com/\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://www.gohttp://www.google.com/ogle.com/\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void MakeSureItSanitized()
{
var target = new HtmlAgilityPackSanitizerProvider();
var elementWhiteList = CreateElementWhiteList();
var attributeWhiteList = CreateAttributeWhiteList();
var htmlFragment = (string)TestContext.DataRow["code"];
var label = " ---> " + (string)TestContext.DataRow["label"];
var actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList, attributeWhiteList);
if (htmlFragment != "See Below")
{
Assert.AreNotEqual(htmlFragment, actual, true, label);
}
}
public void ImageXSS2Test()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<IMG SRC=javascript:alert('XSS')>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<IMG SRC=\":alert(&#39;XSS&#39;)\">";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagNoQuotesXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://www.codeplex.com?url=<SCRIPT>a=/XSS/alert(a.source)</SCRIPT>\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://www.codeplex.com?url=&lt;&gt;a=/XSS/alert(a.source)&lt;/&gt;\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagDownlevelHiddenBlockXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://www.codeplex.com?url=<!--[if gte IE 4]><SCRIPT>alert('XSS');</SCRIPT><![endif]-->\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://www.codeplex.com?url=&lt;!--[if gte IE 4]&gt;&lt;&gt;alert(&#39;XSS&#39;);&lt;/&gt;&lt;![endif]--&gt;\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void DivExtraneousOpenBracketsXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<Div style=\"background-color: http://www.codeplex.com?url=<<SCRIPT>alert(\"XSS\");//<</SCRIPT>\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<Div style=\"background-color: http://www.codeplex.com?url=&lt;&lt;&gt;alert(\"></Div>\">";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void PWithUrlInStyleXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<p STYLE=\"behavior: url(www.ha.ckers.org);\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
// intentionally keep it failing to get notice when reviewing unit tests so can disucss
string expected = "<p STYLE=\": url(www.ha.ckers.org);\">";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void DivBackgroundImageXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<DIV STYLE=\"background-image: url(javascript:alert('XSS'))\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<DIV STYLE=\"background-image: url(:alert(&#39;XSS&#39;))\"></div>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void XmlWithEmbeddedScriptXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<XML SRC=\"xsstest.xml\" ID=I></XML><SPAN DATASRC=#I DATAFLD=C DATAFORMATAS=HTML></SPAN>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<SPAN></SPAN>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagStyleExpressionXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "exp/*<A STYLE='no\\xss:noxss(\"*//*\");xss:ex/*XSS*//*/*/pression(alert(\"XSS\"))'>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "exp/*<a></a>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void XmlWithCDataXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<XML ID=I><X><C><![CDATA[<IMG SRC=\"javas]]><![CDATA[cript:alert('XSS');\">]]></C></X></xml><SPAN DATASRC=#I DATAFLD=C DATAFORMATAS=HTML></SPAN>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<SPAN></SPAN>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void XmlWithCommentObfuscationXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<XML ID=\"xss\"><I><B><IMG SRC=\"javas<!-- -->cript:alert('XSS')\"></B></I></XML><SPAN DATASRC=\"#xss\" DATAFLD=\"B\" DATAFORMATAS=\"HTML\"></SPAN>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<SPAN></SPAN>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void XmlNamespaceXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<HTML xmlns:xss> <?import namespace=\"xss\" implementation=\"http://ha.ckers.org/xss.htc\"> <xss:xss>XSS</xss:xss></HTML>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void TDXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<TABLE><TD BACKGROUND=\"javascript:alert('XSS')\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void PWithWapExtension()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<p style=\"display: -wap-marquee; -wap-marquee-dir: ltr\">Hello, welcome to our WCSS Tutorial.</p>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<p style=\"display: marquee; marquee-dir: ltr\">Hello, welcome to our WCSS Tutorial.</p>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagOctalEncodingXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://0102.0146.0007.00000223/\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://0102.0146.0007.00000223/\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagUrlEncodingXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://%77%77%77%2E%67%6F%6F%67%6C%65%2E%63%6F%6D\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://%77%77%77%2E%67%6F%6F%67%6C%65%2E%63%6F%6D\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagProtocolResolutionScriptXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://www.codeplex.com?url=<SCRIPT SRC=//ha.ckers.org/.j>\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://www.codeplex.com?url=&lt;SRC=//ha.ckers.org/.j&gt;\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void BRJavascriptIncludeXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<BR SIZE=\"&{alert('XSS')}\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<BR>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void XSSLocatorTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<a href=\"'';!--\"<XSS>=&{()}\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<a href=\"&#39;&#39;;!--\"></a>";
Assert.AreEqual(expected, actual);
}
public void LinkWithWebKitCSS()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<link rel=\"stylesheet\" media=\"screen and -webkit-min-device-pixel-ratio: 0\" href=\"webkit.css\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<link rel=\"stylesheet\" media=\"screen and minpixel-ratio: 0\" href=\"webkit.css\">";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagUSASCIIEncodingXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://www.codeplex.com?url=¼script¾alert(¢XSS¢)¼/script¾\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://www.codeplex.com?url=&#188;&#190;alert(&#162;XSS&#162;)&#188;/&#190;\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagHtmlQuotesEncapsulation7XSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://www.codeplex.com?url=<SCRIPT>document.write(\"<SCRI\");</SCRIPT>PT SRC=\"http://ha.ckers.org/xss.js\"></SCRIPT>\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://www.codeplex.com?url=&lt;&gt;document.write(\"></a>PT SRC=\"http://ha.ckers.org/xss.js\">\">XSS";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void DivBackgroundImageWithUnicodedXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<DIV STYLE=\"background-image:\0075\0072\006C\0028'\006a\0061\0076\0061\0073\0063\0072\0069\0070\0074\003a\0061\006c\0065\0072\0074\0028.1027\0058.1053\0053\0027\0029'\0029\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<DIV STYLE=\"background-image:�075�072�06C�028&#39;�06a�061�076�061�073�063�072�069�070�074�03a�061�06c�065�072�074�028.1027�058.1053�053�027�029&#39;�029\"></div>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagIPVersesHostnameXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://66.102.7.147/\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://66.102.7.147/\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void DivDoubleSuspiciousWordHtmlQuotesEncapsulation7XSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<Div style=\"background-color: expexpressionression(<SCRIPT>document.write(\"<SCRI\");</SCRIPT>PT SRC=\"http://ha.ckers.org/xss.js\"></SCRIPT>)\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<Div style=\"background-color:(&lt;&gt;document.write(\"></div>PT SRC=\"http://ha.ckers.org/xss.js\">)\">";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagJavascriptLinkLocationXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"javascript:document.location='http://www.google.com/'\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\":document.location=&#39;http://www.google.com/&#39;\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void DivExpressionXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<DIV STYLE=\"width: expression(alert('XSS'));\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<DIV STYLE=\"width:(alert(&#39;XSS&#39;));\"></Div>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagMixedEncodingXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = @"<A HREF=""h
tt p://6	6.000146.0x7.147/"">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"h
tt	p://6&amp;#9;6.000146.0x7.147/\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void DivHtmlQuotesEncapsulation5XSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<Div style=\"background-color: http://www.codeplex.com?url=<SCRIPT a=`>` SRC=\"http://ha.ckers.org/xss.js\"></SCRIPT>\">";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<Div style=\"background-color: http://www.codeplex.com?url=&lt;a=`&gt;` SRC=\">\"></Div>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
public void AnchorTagNonAlphaNonDigitXSSTest()
{
// Arrange
HtmlAgilityPackSanitizerProvider target = new HtmlAgilityPackSanitizerProvider();
Dictionary<string, string[]> elementWhiteList = CreateElementWhiteList();
Dictionary<string, string[]> attributeWhiteList = CreateAttributeWhiteList();
// Act
string htmlFragment = "<A HREF=\"http://www.codeplex.com?url=<SCRIPT/XSS SRC=\"http://ha.ckers.org/xss.js\"></SCRIPT>\">XSS</A>";
string actual = target.GetSafeHtmlFragment(htmlFragment, elementWhiteList);
// Assert
string expected = "<A HREF=\"http://www.codeplex.com?url=&lt;/XSS SRC=\">\">XSS</A>";
StringAssert.AreEqualIgnoringCase(expected, actual);
}
