barracuda-xss.txt

`Barracuda Networks Spam Firewall Cross-Site Scripting Vulnerability  
CVE Number: CVE-2008-2333  
  
  
Vulnerability Type / Importance: Cross-Site Scripting (Reflected) /  
Medium  
  
Problem Discovered 24 April 2008  
Vendor Contacted 24 April 2008  
Advisory Published 22 May 2008  
  
Abstract  
The Barracuda Spam Firewall device web administration interface is  
vulnerable to a reflected cross-site scripting vulnerability which may  
allow theft of administrative credentials or downloading of malicious  
content.  
  
Description:  
  
The Barracuda device presents LDAP testing functionality via a script  
called 'ldap_test.cgi'. The script does not sufficiently validate  
user-supplied input within the 'email' parameter. As a result,  
client-supplied script code can be injected into the 'email' parameter  
that would execute in the browser within the security context of the  
Barracuda device.  
Vendor information:  
http://www.barracudanetworks.com/ns/support/tech_alert.php  
  
Proof of Concept:  
  
https://<vulnerable_host>/cgi-bin/ldap_test.cgi?host=127.0.0.1&port=1&tl  
s_mode=tls_mode&tls_require=&username=&password=&filter=&searchbase=&uni  
que_attr=&email_attr=&domain=*&email=%3Cscript%3Ealert(document.cookie)%  
3C/script%3E  
  
Mitigation:  
  
Access to the web management application can be limited by IP address.  
Firmware release 3.5.11.025 has been released by the vendor to address  
this issue; however the patch has not been tested by IRM.  
  
Tested/Affected Versions:  
  
IRM confirmed the presence of this vulnerability in Barracuda Spam  
Firewall 600 Firmware 3.5.11.020.  
The vendor has confirmed the issue exists in all versions prior to  
3.5.11.025.  
  
Credits  
  
Research and Advisory: Information Risk Management Plc.  
  
About IRM:  
  
Information Risk Management Plc (IRM) is a vendor independent  
information risk consultancy, founded in 1998. IRM has become a leader  
in client side risk assessment, technical level auditing and in the  
research and development of security vulnerabilities and tools. IRM is  
headquartered in London with Technical Centres in Europe and Asia as  
well as Regional Offices in the Far East and North America. Please visit  
our website at www.irmplc.com for further information.  
  
Disclaimer:  
  
All information in this advisory is provided on an 'as is' basis in the  
hope that it will be useful. Information Risk Management Plc is not  
responsible for any risks or occurrences caused by the application of  
this information.  
  
`