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Please Help!  XLS Filter problem

Posted on 2009-07-14
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Last Modified: 2013-11-08
Hello experts,

I have a script that I run for some vulnerability reports that parses and filters XML information into a handy table.  I have used it for Nessus data in the past without issues.  However, now we are utilizing Retina Vulnerability scanners that export an XML structure a little different.

I manipulated the XSL file to accomodate the XML for Retina, BUT, I am having issues displaying the correct data.  For instance, I used to have an XML node called "<severity>" that was numerical (1 through 3).  Now, with the new XML structure, the equivalent is called "<pciLevel>" and is not numeric but instead is like this "3 (High)".  I was thinking that perhaps I should utilize the "<risk>" node instead to filter it, but then again, it is not numerical which I am used to.

I had a sort function working with just the numeric version, but with the alpha numeric result the sort function doesn't seem to want to display anything.

I have an IF statement in place "<xsl:if test="pciLevel &gt; 1 (Low)">" which I assume is the culprit.  But, then again, I have another field that filters a little more like this:

<xsl:choose>
      <xsl:when test="pciLevel = 3 (High)">
      <td bgcolor="red" bordercolor="#000000" align="center" valign="middle" width="90px">
      <xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>High</td>
                     </xsl:when>

      <xsl:otherwise>
      <td bgcolor="green" align="center" valign="middle" width="90px">
      <xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>Low</td>
      </xsl:otherwise>
</xsl:choose>


I hope what I am asking makes sense.  Any help would be greatly appreciated.

Thanks,
XML:
 

<scanJob>
 

<hosts>

<host>

<ip>192.168.3.102</ip>

<netBIOSName>N/A</netBIOSName>

<dnsName>unknown</dnsName>

<mac>N/A</mac>

<os>N/A</os>

<audit>

<rthID>3688</rthID>

<cve>CVE-1999-0524</cve>

<name>ICMP Timestamp Request</name>

<description>ICMP Timestamp request is allowed from arbitrary hosts.</description>

<date>06/24/2009</date>

<risk>High</risk>

<pciLevel>5 (Urgent)</pciLevel>

<cvssScore>0 [AV:L/AC:L/Au:N/C:N/I:N/A:N]</cvssScore>

<fixInformation>Filter the ICMP Timestamp request.</fixInformation>

</audit>

</host>
 

<host>

<ip>192.168.3.114</ip>

<netBIOSName>N/A</netBIOSName>

<dnsName>unknown</dnsName>

<mac>N/A</mac>

<os>N/A</os>

<audit>

<rthID>3688</rthID>

<cve>CVE-1999-0524</cve>

<name>ICMP Timestamp Request</name>

<description>ICMP Timestamp request is allowed from arbitrary hosts.</description>

<date>06/24/2009</date>

<risk>Medium</risk>

<pciLevel>4 (Critical)</pciLevel>

<cvssScore>0 [AV:L/AC:L/Au:N/C:N/I:N/A:N]</cvssScore>

<fixInformation>Filter the ICMP Timestamp request.</fixInformation></audit>

</host>

<host>

<ip>192.168.3.215</ip>

<netBIOSName>N/A</netBIOSName>

<dnsName>unknown</dnsName>

<mac>N/A</mac>

<os>N/A</os>

<audit>

<rthID>3688</rthID>

<cve>CVE-1999-0524</cve>

<name>ICMP Timestamp Request</name>

<description>ICMP Timestamp request is allowed from arbitrary hosts.</description>

<date>06/24/2009</date>

<risk>Low</risk>

<pciLevel>1 (Low)</pciLevel>

<cvssScore>0 [AV:L/AC:L/Au:N/C:N/I:N/A:N]</cvssScore>

<fixInformation>Filter the ICMP Timestamp request.</fixInformation>

</audit>

</host>

</hosts>
 

</scanJob>
 
 
 
 
 
 

The XSL:
 

<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format">

	<xsl:output method="html" encoding="UTF-8"/>
 

	<xsl:template name="GetHostName">

		<xsl:param name="rthID"/>

		<xsl:for-each select="//hosts/host">

			<xsl:if test="audit/rthID = $rthID">

				<xsl:value-of select="ip"/>

				<br/>

			</xsl:if>

		</xsl:for-each>

	</xsl:template>

	<xsl:template match="hosts/host/audit">

		<br/>Plugin ID: <xsl:value-of select="rthID"/>

		<xsl:call-template name="GetHostName">

			<xsl:with-param name="rthID" select="rthID"/>

		</xsl:call-template>

	</xsl:template>

	<xsl:key name="pcodes" match="//host/audit" use="rthID"/>

	<xsl:template match="/">

		
 

		<!-- COUNTER SCRIPT -->

		<script type="text/javascript">

		var count=0;

		function incrementCounter() { count++; document.write(count); } 

		</script>
 
 
 
 
 

		<table border="0" style="width: 610px; font-family: Arial;  font-size: 10px;" align="center">

			<tr>

				<th id="cells">Finding Number</th>

				<th id="cells">NIST 800-53/ DHS Control Severity</th>

				<th id="cells">Machine Name</th>

				<th id="cells">Finding</th>

				<th id="cells">Suggested Mitigation </th>

			</tr>

			<xsl:for-each select="//host/audit[generate-id(.)=

        generate-id(key('pcodes', rthID)[1])]">

				<xsl:sort select="pciLevel"/>

				<xsl:for-each select="key('pcodes', rthID)">

					<xsl:sort select="../../host/ip"/>

					

					<xsl:if test="pciLevel &gt; 1 (Low)">

					<tr  style="vertical-align: top; height: 40px;">
 
 
 

						    <xsl:if test="position() = 1">

							

								<td align="center" valign="center" width="90px">

								<xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

							

									Nessus-<!--xsl:value-of select="position()"/-->

									<script language="javascript">

									incrementCounter();

									</script>
 

								

								</td>
 
 
 
 
 
 

						<xsl:choose>

							<xsl:when test="pciLevel = 3 (High)">

							<td bgcolor="red" bordercolor="#000000" align="center" valign="middle" width="90px">

							   	<xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

								High

							</td>

							</xsl:when>

						
 

							<xsl:otherwise>

							<td bgcolor="green" align="center" valign="middle" width="90px">

							   	<xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

								Low

							</td>

							

							</xsl:otherwise>

						</xsl:choose>
 

								<td align="center" valign="middle">

									  

										<xsl:if test="../../host/audit/rthID = rthID">

										<xsl:call-template name="GetHostName">

										<xsl:with-param name="rthID" select="rthID"/>

										</xsl:call-template>

										</xsl:if>

										

	
 
 
 

							<td width="250px">

								<xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

								<b><xsl:value-of select="name"/> </b><p></p><xsl:value-of select="description"/>

								
 
 
 

							</td>

							
 

							<td align="center" valign="center">

								<xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

							

									

								

							</td>
 

						

							</td>

						</xsl:if>

					</tr>

					</xsl:if>

				</xsl:for-each>

			</xsl:for-each>

		</table>

	</xsl:template>

</xsl:stylesheet>

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Question by:shark1998
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9 Comments
 
LVL 60

Expert Comment

by:Geert Bormans
ID: 24849898
why don't you filter out everything  that is not numerical from the pciLevel element
you can do that with a simple translate
translate(pciLevel, translate(picLevel, '0123456789', ''), '')
now all non numeric characters are removed
(high and low seem redundant to me)
and you can use the pciLevel element, exactly the same way as you did before with severity
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Author Comment

by:shark1998
ID: 24849939
Can you provide an example of how to accomplish this.  Thank you for your comments.
0
 
LVL 60

Expert Comment

by:Geert Bormans
ID: 24849984
well, your test should become
<xsl:if test="number(translate(pciLevel, translate(picLevel, '0123456789', ''), '')) > 1">
(simply ignore the "low")

and the sort
<xsl:sort select="number(translate(pciLevel, translate(picLevel, '0123456789', ''), '')) "/>
0
 

Author Comment

by:shark1998
ID: 24858678
I am sorry.  But which sections should be replaced.  I have mutliple Sort and if test sections.  
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Author Comment

by:shark1998
ID: 24858682
Would you mind putting it the way it should be in the code that I provided?  It would be appreciated.
0
 
LVL 60

Expert Comment

by:Geert Bormans
ID: 24858706
well, I assume you know better then I do where you want to sort based on the numerics in pciLevel
and I assume that you know better than I do where you need to test for a numeric in the pciLevel to be > 1

I will have a look though
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LVL 60

Accepted Solution

by:
Geert Bormans earned 500 total points
ID: 24858817

<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format">

    <xsl:output method="html" encoding="UTF-8"/>

    

    <xsl:template name="GetHostName">

        <xsl:param name="rthID"/>

        <xsl:for-each select="//hosts/host">

            <xsl:if test="audit/rthID = $rthID">

                <xsl:value-of select="ip"/>

                <br/>

            </xsl:if>

        </xsl:for-each>

    </xsl:template>

    <xsl:template match="hosts/host/audit">

        <br/>Plugin ID: <xsl:value-of select="rthID"/>

        <xsl:call-template name="GetHostName">

            <xsl:with-param name="rthID" select="rthID"/>

        </xsl:call-template>

    </xsl:template>

    <xsl:key name="pcodes" match="//host/audit" use="rthID"/>

    <xsl:template match="/">

        

        

        <!-- COUNTER SCRIPT -->

        <script type="text/javascript">

            var count=0;

            function incrementCounter() { count++; document.write(count); } 

        </script>

        

        

        

        

        

        <table border="0" style="width: 610px; font-family: Arial;  font-size: 10px;" align="center">

            <tr>

                <th id="cells">Finding Number</th>

                <th id="cells">NIST 800-53/ DHS Control Severity</th>

                <th id="cells">Machine Name</th>

                <th id="cells">Finding</th>

                <th id="cells">Suggested Mitigation </th>

            </tr>

            <xsl:for-each select="//host/audit[generate-id(.)=

                generate-id(key('pcodes', rthID)[1])]">

                <xsl:sort select="number(translate(pciLevel, translate(pciLevel, '0123456789', ''), '')) "/>

                <xsl:for-each select="key('pcodes', rthID)">

                    <xsl:sort select="../../host/ip"/>

                    

                    <xsl:if test="number(translate(pciLevel, translate(pciLevel, '0123456789', ''), '')) > 1">

                        <tr  style="vertical-align: top; height: 40px;">

                            

                            

                            

                            <xsl:if test="position() = 1">

                                

                                <td align="center" valign="center" width="90px">

                                    <xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

                                    

                                    Nessus-<!--xsl:value-of select="position()"/-->

                                    <script language="javascript">

                                        incrementCounter();

                                    </script>

                                    

                                    

                                </td>

                                

                                

                                

                                

                                

                                

                                <xsl:choose>

                                    <xsl:when test="number(translate(pciLevel, translate(pciLevel, '0123456789', ''), '')) = 3">

                                        <td bgcolor="red" bordercolor="#000000" align="center" valign="middle" width="90px">

                                            <xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

                                            High

                                        </td>

                                    </xsl:when>

                                    

                                    

                                    <xsl:otherwise>

                                        <td bgcolor="green" align="center" valign="middle" width="90px">

                                            <xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

                                            Low

                                        </td>

                                        

                                    </xsl:otherwise>

                                </xsl:choose>

                                

                                <td align="center" valign="middle">

                                    

                                    <xsl:if test="../../host/audit/rthID = rthID">

                                        <xsl:call-template name="GetHostName">

                                            <xsl:with-param name="rthID" select="rthID"/>

                                        </xsl:call-template>

                                    </xsl:if>

                                    

                                    

                                    

                                    

                                    

                                    <td width="250px">

                                        <xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

                                        <b><xsl:value-of select="name"/> </b><p></p><xsl:value-of select="description"/>

                                        

                                        

                                        

                                        

                                    </td>

                                    

                                    

                                    <td align="center" valign="center">

                                        <xsl:attribute name="rowspan"><xsl:value-of select="count(key('pcodes', rthID))"/></xsl:attribute>

                                        

                                        

                                        

                                    </td>

                                    

                                    

                                </td>

                            </xsl:if>

                        </tr>

                    </xsl:if>

                </xsl:for-each>

            </xsl:for-each>

        </table>

    </xsl:template>

</xsl:stylesheet>

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Author Comment

by:shark1998
ID: 24859037
Thanks! Now I see what you mean.  Your work is appreciated.
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LVL 60

Expert Comment

by:Geert Bormans
ID: 24859051
welcome,
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