XERO Banking&Accounting - Cross Site Vulnerabilities

Document Title:
===============
XERO Banking&Accounting - Cross Site Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=316


Release Date:
=============
2012-01-22


Vulnerability Laboratory ID (VL-ID):
====================================
316


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


Product & Service Introduction:
===============================
Xero (NZX: XRO ) is an online accounting software product for small and medium-sized businesses,
as well as for personal finance. The product is sold by subscription (a distribution model commonly
known as Software as a Service or SaaS) requiring the payment of a monthly fee. This charge is
proportionate to the number (and type) of company entities managed by the subscriber.

(Copy of the Vendor Website: http://en.wikipedia.org/wiki/Xero_(software) )


Abstract Advisory Information:
==============================
Vulnerability-Lab Team (Chokri B.A.) discovered multiple refelctive web vulnerability on the Online Banking & Accounting Software XERO.


Vulnerability Disclosure Timeline:
==================================
2011-10-08:	Vendor Notification
2011-11-08:	Vendor Notification
2011-12-08:	Vendor Notification
2011-**-**:	Vendor Response/Feedback
2011-**-**:	Vendor Fix/Patch
2012-01-23:	Public or Non-Public Disclosure


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


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


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


Technical Details & Description:
================================
Multiple cross site vulnerabilities are detected on the Online Banking & Accounting Software XERO. 
The bug allows remote attacker to implement malicious script code on the application-side.
Successful exploitation of the vulnerability allows an attacker to manipulate specific modules & can 
lead to session hijacking (user/mod/admin).

Vulnerable Module(s):
							[+] Bank Accounts

Picture(s):
							../1.png
							../2.png
							../3.png
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Proof of Concept (PoC):
=======================
The vulnerabilities can be exploited by remote attackers with low user inter action. For demonstration or reproduce ...

Vulnerable Module(s):
							[+] Bank Accounts ( Edit Bank Account  )
							[+] Bank Accounts ( Edit Banking Rules )


Security Risk:
==============
The security risk of the cross site scripting vulnerabilities are estimated as medium.


Credits & Authors:
==================
Vulnerability Research Laboratory - Chokri B.A (Me!ster)


Disclaimer & Information:
=========================
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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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