The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
Low
PR
The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
Low
C
There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity
Low
I
Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability
None
A
There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.
Title:
======
Barracuda WAF 660 v7.6.0.028 - Cross Site Vulnerability
Date:
=====
2012-03-07
References:
===========
http://www.vulnerability-lab.com/get_content.php?id=444
VL-ID:
=====
444
Introduction:
=============
The Barracuda Web Application Firewall provides superior protection against hackers attempts to exploit vulnerabilities
in Web sites or Web applications to steal data, cause denial of service or deface Web sites. By integrating application
delivery capabilities, the Barracuda Web Application Firewall is an affordable and comprehensive application firewall
that can secure Web applications, as well as increase their performance and availability.
- Protection against common attacks
- Outbound data theft protection
- Web site cloaking
- Granular policies
- Secure HTTP traffic
- SSL Offloading
- SSL Acceleration
- Load Balancing
The Barracuda Web Application Firewall is a complete and powerful security solution for Web applications and Web sites. The
Barracuda Web Application Firewall provides award-winning protection against hackers leveraging protocol or application
vulnerabilities to instigate data theft, denial of service or defacement of your Web site.
(Copy of the vendor Homepage: http://www.barracudanetworks.com/ns/products/web-site-firewall-overview.php )
Abstract:
=========
Vulnerability-Lab Team discovered a non persistent Cross Site Scripting Vulnerability on Barracudas Web Application Firewall 660 v7.6.0.028.
Report-Timeline:
================
2012-02-16:Vendor Notification
2012-02-19:Vendor Response/Feedback
2012-03-05:Vendor Fix/Patch
2012-03-07:Public or Non-Public Disclosure
Status:
========
Published
Affected Products:
==================
Barracuda Networks
Product: Barracuda Web Application Firewall 660 v7.6.0.028
Exploitation-Technique:
=======================
Remote
Severity:
=========
Low
Details:
========
A client side cross site scripting vulnerability is detected on Barracudas Web Application Firewall 660 v7.6.0.028.
The vulnerability allows an attacker (remote) to hijack customer/moderator/admin sessions with medium required user inter
action. Successful exploitation can result in account steal or client side context manipulation when processing firewall module
application requests.
Vulnerable Module(s):
[+] sessions_by_user&filter=[x]
Picture(s):
../1.png
../2.png
Risk:
=====
The security risk of the non-persistent (client side) cross site scripting vulnerability is estimated as low(+).
Credits:
========
Vulnerability Research Laboratory - Benjamin Kunz Mejri (Rem0ve)
Disclaimer:
===========
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties,
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, 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. Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability-
Lab. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of
other media, are reserved by Vulnerability-Lab or its suppliers.
Copyright 2012|Vulnerability-Lab
--
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