Matrix42 Service Store 5.3 SP3 Cross Site Scripting

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* 43zsec SECURITY ADVISORY  
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_ CVE ID : CVE-2013-2504  
_ Product: Service Store 5.3 SP3 (5.33.946.0)  
_ Vendor: matrix42 - member of asseco group  
_ Subject: Cross-site Scripting - XSS  
  
_ Classification: PCI 2.0: 6.5.7  
PCI 1.2: 6.5.1  
OWASP: A2  
CWE: 79  
CAPEC: 19  
WASC: 08  
  
  
_ Risk: High  
_ Effect: Remotely exploitable  
_ Author: 43zsec (43zsec() gmail.com)  
_ Date: March 6th 2013  
_ Dork: inurl:/SPS/Logon/AuthLogon.aspx?ReturnUrl=  
  
  
  
Productinformation:  
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Matrix42 Service Desk (description from the Webpage):  
http://www.matrix42.com/products/it-service-management/service-desk/  
  
A friendly, well-organized customer service is the flagship of every company.  
As the IT department’s central point of contact, the helpdesk ensures  
user productivity.  
As a matter of course, the processes are ITIL-based, well-documented  
and historicized.  
The ITIL V3 certified Matrix42 Service Desk is completely integrated  
with the Service Catalog  
and related processes. The ticket automatically includes all  
information from contract,  
asset and license management to allow the service staff to make fast  
decisions and take efficient action.  
  
  
Introducion:  
43zsec discovered some security flaws in the matrix42 service desk.  
  
  
Vulnerable Versions / Tested Versions:  
Service Store 5.3 SP3 (5.33.946.0)  
  
  
Patches:  
no Patches available for this vulnerability for today.  
  
  
Description:  
Impact: XSS  
URL:  
https://SERVERNAME/SPS/Portal/default.aspx?'"--></style></script><script>alert(document.cookie)</script>  
  
Parameter Name: Query Based  
Parameter Type: FullQuery String  
Pattern:  
'"--></style></script><script>alert(document.cookie)</script>  
Remarks:  
  
  
Details:  
Source: https://www.owasp.org/index.php/Cross-site_Scripting_%28XSS%29  
Cross-Site Scripting attacks are a type of injection problem, in which malicious  
scripts are injected into the otherwise benign and trusted web sites.  
Cross-site scripting  
(XSS) attacks occur when an attacker uses a web application to send  
malicious code,  
generally in the form of a browser side script, to a different end  
user. Flaws that allow  
these attacks to succeed are quite widespread and occur anywhere a web  
application uses  
input from a user in the output it generates without validating or encoding it.  
  
An attacker can use XSS to send a malicious script to an unsuspecting user.  
The end user’s browser has no way to know that the script should not  
be trusted, and will execute the script.  
Because it thinks the script came from a trusted source, the malicious  
script can access any cookies,  
session tokens, or other sensitive information retained by your  
browser and used with that site.  
These scripts can even rewrite the content of the HTML page.  
  
  
Impact:  
XSS gives a attacker a lot of attacking vectors, including:  
Session Hijacking: stealing the user session cookie  
Phishing Attacks  
MITM Attacks: Intercepting data.  
  
  
REMEDY:  
Microsoft Anti-Cross Site Scripting Library V4.2  
http://www.microsoft.com/en-us/download/details.aspx?id=28589  
  
XSS (Cross Site Scripting) Prevention Cheat Sheet  
https://www.owasp.org/index.php/XSS_%28Cross_Site_Scripting%29_Prevention_Cheat_Sheet  
  
  
Time-Map:  
06.03.2013 Vendor contacted  
10.04.2013 Vendor will Patch this issue  
18.04.2013 disclosure  
  
  
References:  
http://www.matrix42.de  
http://www.asseco.com/  
  
https://www.owasp.org/index.php/Cross-site_Scripting_%28XSS%29  
http://www.microsoft.com/en-us/download/details.aspx?id=28589  
  
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