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Barracuda Message Archiver 650 Cross Site Scripting

Barracuda Message Archiver 650 Cross Site Scripting
Posted Feb 20, 2014
Authored by Benjamin Kunz Mejri, Vulnerability Laboratory | Site vulnerability-lab.com

Barracuda Message Archiver 650 suffers from a cross site scripting vulnerability.

tags | exploit, xss
SHA-256 | c5e54f9d0079086202b8f53bdb2e3aae88194dc2ae39e9f989565f1b9d4ec9ff

Barracuda Message Archiver 650 Cross Site Scripting

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Document Title:
Barracuda Message Archiver 650 - Persistent Vulnerability

References (Source):

Barracuda Networks Security ID (BNSEC): 703

Release Date:

Vulnerability Laboratory ID (VL-ID):

Common Vulnerability Scoring System:

Product & Service Introduction:
The Barracuda Message Archiver is a complete and affordable email archiving solution, enabling you to effectively
index and preserve all emails, enhance operational efficiencies and enforce policies for regulatory compliance. By
leveraging standard policies and seamless access to messages, email content is fully indexed and backed up to enable
administrators, auditors and end users quick retrieval of any email message stored in an organization’s email archive.

* Comprehensive archiving
* Exchange stubbing
* Search and retrieval
* Policy management
* Intelligent Storage Manager
* Roles-based interface
* Reporting and statistics

The Barracuda Message Archiver provides everything an organization needs to comply with government regulations in an
easy to install and administer plug-and-play hardware solution. The Barracuda Message Archiver stores and indexes all
email for easy search and retrieval by both regular users and third-party auditors. Backed by Energize Updates, delivered
by Barracuda Central, the Barracuda Message Archiver receives automatic updates to its extensive library of virus, policy
definitions to enable enhanced monitoring of compliance and corporate guidelines, document file format updates needed to
decode content within email attachments, as well as security updates for the underlying Barracuda Message Archiver platform
to protect against any potential security vulnerabilities.

(Copy of the Vendor Homepage: http://www.barracudanetworks.com )

Abstract Advisory Information:
The Vulnerability Laboratory Research Team discovered a persistent web vulnerability in Barracudas Messsage Archiver Appliance Application.

Vulnerability Disclosure Timeline:
2013-11-08: Researcher Notification & Coordination (Benjamin Kunz Mejri)
2013-11-10: Vendor Notification (Barracuda Networks - Bug Bounty Program)
2013-11-13: Vendor Response/Feedback (Barracuda Networks - Bug Bounty Program)
2013-02-17: Vendor Fix/Patch (Barracuda Networks Developer Team)
2014-02-18: Public Disclosure (Vulnerability Laboratory)

Discovery Status:

Affected Product(s):
Barracuda Networks
Product: Message Archiver 650 - Appliance Application

Exploitation Technique:

Severity Level:

Technical Details & Description:
A persistent input validation vulnerability has been discovered in the official Barracuda Networks Message Archiver 650 v3.1.0.914 appliance web-application.
The remote vulnerability allows remote attackers to inject own malicious script codes on the application-side of the vulnerable message archiver module.

The vulnerability is located in the `Benutzer > Neu Anlegen > Rolle: Auditor > Domänen` module. Remote attackers are able to inject own malicious script
codes with persistent attack vector in the vulnerable domain_list_table-r0 parameter. The execution of the script code occurs in the domain_list_table-r0
and user_domain_admin:1 appliance application response context. The request method is POST and the attack vector is persistent on the application-side of
the barracuda networks message archiver appliance. The security risk of the input validation web vulnerability is
estimated as medium with a cvss (common vulnerability scoring system) count of 3.5(+)|(-)3.6.

Exploitation of the vulnerability requires a low privileged or restricted application user account with low or medium user interaction. Successful exploitation
of the vulnerability results in session hijacking, persistent phishing, persistent external redirects and persistent manipulation of module context.

Request Method(s):
[+] POST

Vulnerable Module(s):
[+] Benutzer > Neu Anlegen > Rolle: Auditor > Domänen

Vulnerable Parameter(s):
[+] domain_list_table-r0

Proof of Concept (PoC):
The persistent web vulnerability can be exploited by remote attacker with low privileged application user account and low required user inter action.
For security demonstration or to reproduce the remote vulnerability follow the provided information and steps below.

Benutzer > Neu Anlegen > Rolle: Auditor > Domänen > (domain_list_table-r0)


URL: http://archiver.ptest.localhost:3378/cgi-mod/index.cgi?auth_type=Local&et=1352520461&locale=de_DE&password=4b0a7f3a136e60c7cf73ec1b30ec6a23&

PoC: Benutzer > Neu Anlegen > Rolle: Auditor > Domänen > (domain_list_table-r0)

<td style="vertical-align:middle;text-align:left;white-space:nowrap">
%20​​​​​">​​​​​<iframe src="http://vuln-lab.com" onload="alert(document.cookie)" <=""
"="[PERSISTENT INJECTED SCRIPT CODE!]< </iframe><input name="user_domain_admin:1"
id="user_domain_admin:1" value=""[PERSISTENT INJECTED SCRIPT CODE!]" type="hidden"></td>



Solution - Fix & Patch:
The vulnerability can be patched by a secure parse of the vulnerable affected listing in the domain_list_table-r0 parameter.

Barracuda Networks Appliance: Advanced->Firmware Updates page

Security Risk:
The security risk of the persistent input validation web vulnerability is estimated as medium.

Credits & Authors:
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@evolution-sec.com) [www.vulnerability-lab.com]

Disclaimer & Information:
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. 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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