FBI Jobs Center Website - Multiple XSS Vulnerabilities

Document Title:
===============
FBI Jobs Center Website - Multiple XSS Vulnerabilities



Release Date:
=============
2011-09-12


Vulnerability Laboratory ID (VL-ID):
====================================
271


Product & Service Introduction:
===============================
ARE YOU FIT ENOUGH TO BECOME AN FBI SPECIAL AGENT?
Due to the highly demanding nature of the Special Agent position, passing the Agent fitness requirements is mandatory for all 
Agent applicants. Click here to learn more about the level of physical fitness required to become a Special Agent and see if you have what it takes! 

(Copy of the Vendor  Homepage: http://www.fbijobs.gov/)


Abstract Advisory Information:
==============================
An anonymous researcher of the laboratory discovered multiple Cross Site Scripting Vulnerabilities on FBI Jobcenter.


Vulnerability Disclosure Timeline:
==================================
2011-04-03:	Vendor Notification
2011-**-**:	Vendor Response/Feedback
2011-**-**:	Vendor Fix/Patch
2011-09-12:	Public or Non-Public Disclosure


Discovery Status:
=================
Published


Affected Product(s):
====================

Exploitation Technique:
=======================
Remote


Severity Level:
===============
Low


Technical Details & Description:
================================
Multiple non-persistent cross site vulnerabilities are detected on the FBI Jobs vendor website application.
Successful exploitation of the client-side vulnerability allows to execute malicious script code out of the website content 
& can lead to session hijacking against customer/interview accounts (ASPSESSIONID).


Vulnerable Modules(Persistent):	

					[+] TodaysFBI
					[+] Search
					[+] Job Search				

Pictures:
					../*.png


Proof of Concept (PoC):
=======================
The vulnerabilities can be exploited by remote attackers with required user inter action. For demonstration ...


File: searchresult.asp

<td valign="top" width="100%">
<div class="ttl">SEARCH RESULT</div>
<img src="images/clear.gif" alt="Clear gif" border="0" height="3" width="11"><br>    
<p>This Search tool only searches the content of the FBIjobs Web site. To search for current vacancy announcements please go to 
<a href="03.asp">View Jobs & Apply</a>. To search for more information about the FBI please visit <a href="http://www.fbi.gov" 
target="_blank">www.fbi.gov</a> and utilize the Search feature found there.</p><table border="0" cellpadding="0" cellspacing="0" 
width="100%"><tbody><tr><td width="6"><img src="images/clear.gif" alt="" border="0" height="5" width="6"></td><td valign="top">
<h3>Search Result For: >"<INCLUDE OWN CLIENT_SIDE SCRIPTCODE HERE!!!"></h3><table border="0" cellspacing=2 Cellpadding=2
><tr><td><p class="mdm"><b>No Records Found.</b></p></td></tr></table>
</td></tr></table></td></tr></table>   <!-- Editable area Above--><!--Body-->




File: TodaysFBI.htm



File: http://127.0.0.1:8080/THUMBNAIL.CGI?NAME=unbindtv1,+access-log

<a href="javascript:%20Move('next')">Next</a>
</td></tr></tbody></table>
<br><br>(Click on the column headers to re-sort the results) 
</td></tr></tbody></table>					<--- <INCLUDE OWN CLIENT_SIDE SCRIPTCODE HERE!!!">
<form name="frm" action="joblist.asp" method="post">
<input name="move_indicator" value="" type="hidden">
<input name="page" value="1" type="hidden">
<input name="sort_column" value="careerpost_datetime desc" type="hidden">           
<input name="category_id" value="" type="hidden">
<input name="state_id" value="" type="hidden">
<input name="requisition_code" value="" type="hidden">
<input name="keywords" value=">" type="hidden"><iframe src="a_data/a.htm" height="800" width="800">"
/> <input type="hidden" name="HasCustomFields" value="1" />
<input type="hidden" name="ExclusiveSearchKeywords" value="1" />
<input type="hidden" name="ExclusiveSearchCustomFields" value="0"
/> </form> </td> </tr> </table> <br
/><br /> <a href="job_start.asp">Search Events</a>
 |  <a href="Javascript:
ViewJobCartLocal('FBIIQJob');">Saved Events</a> </body>
</html>
<script language="javascript">
<!-- function Move(strIndicator) { document.frm.move_indicator.value
= strIndicator; document.frm.submit(); } function Sort(strSortColumn) {
document.frm.sort_column.value = strSortColumn; document.frm.submit();
}
//-->
</script>
</iframe></form></td>


... a asymmetric overflow 'CLng'

http://jobsearch.fbijobs.gov/jobsearch.asp?re=-1%27&vw=b&pg=99999999999999999999999999999999999999999&q=Linguists&sort=rv&FedEmp=N&jbf574=DJ02&brd=3876&ss=0&FedPub=N&tm=-1%27


Microsoft VBScript runtime  error '800a0006'
Overflow: 'CLng'
/jobsearch.asp, line 7755 


References:
		../PoC/searchresult.asp
		../PoC/TodaysFBI.htm
		../PoC/asymmetric.txt


Security Risk:
==============
The security risk of the non persistent vulnerabilities are estimated as low(+).


Credits & Authors:
==================
Vulnerability Research Laboratory - N/A  Anonymous


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=========================
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