Barracuda WAF V360 Firmware 8.0.1.014 Username / Session ID Leak

The Barracuda WAF management application transmits the current user and session identifier over HTTP GET. Firmware version 8.0.1.014 is affected.


MD5 | 6a4ac3abbfee6355517319f7d35839ce

KL-001-2017-013 : Barracuda WAF Management Application Username and Session ID Leak

Title: Barracuda WAF Management Application Username and Session ID Leak
Advisory ID: KL-001-2017-013
Publication Date: 2017.07.06
Publication URL: https://www.korelogic.com/Resources/Advisories/KL-001-2017-013.txt


1. Vulnerability Details

Affected Vendor: Barracuda
Affected Product: Web Application Firewall V360
Affected Version: Firmware v8.0.1.014
Platform: Embedded Linux
CWE Classification: CWE-200: Information Exposure
Impact: Privileged Access
Attack vector: HTTP

2. Vulnerability Description

The Barracuda WAF management application transmits the current
user and session identifier over HTTP GET.

3. Technical Description

The HTTP URL shown below contains both the username and a md5 hash.
This information is transmitted over a plaintext network connection.
The password parameter can be seen more like a session identifier
whose values are valid for a maximum of five days.

GET
/cgi-bin/index.cgi?password=c12954a040d3a239f05ae63378131045&et=1480178788&auth_type=Local&locale=en_US&page_submitted=1&primary_tab=ADVANCED&secondary_tab=troubleshooting&user=admin
HTTP/1.1
Host: 1.3.3.8:8000
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:50.0) Gecko/20100101 Firefox/50.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer:
http://1.3.3.8:8000/cgi-bin/index.cgi?&user=admin&password=d8bcadb76eb1f0c22423e1ec6264bc9c&et=1480178786&locale=en_US&primary_tab=ADVANCED&secondary_tab=troubleshooting&file=report_.tar.gz&refresh=1
DNT: 1
Connection: close
Upgrade-Insecure-Requests: 1

HTTP/1.1 200 OK
Server: BarracudaHTTP 4.0
Content-Type: text/html; charset=utf-8
Connection: close
Expires: Fri, 27 Nov 2015 16:26:42 GMT
Date: Sat, 26 Nov 2016 16:26:42 GMT
Content-length: 100997
X-Frame-Options: SAMEORIGIN

[snip]

4. Mitigation and Remediation Recommendation

The vendor has patched this vulnerability in the lastest
virtual appliance release.

5. Credit

This vulnerability was discovered by Matt Bergin (@thatguylevel)
of KoreLogic, Inc. and Joshua Hardin.

6. Disclosure Timeline

2016.12.20 - KoreLogic sends vulnerability report and PoC to
Barracuda.
2016.12.21 - Barracuda acknowledges receipt of the vulnerability
report.
2017.01.09 - Barracuda informs KoreLogic that they are working
on remediation for this issue.
2017.01.26 - Barracuda asks for additional time beyond the
standard 45 business day embargo to address this
and other issues reported by KoreLogic.
2017.02.27 - 45 business days have elapsed since the issue was
reported.
2017.04.10 - 75 business days have elapsed since the issue was
reported.
2017.05.15 - 100 business days have elapsed since the issue was
reported.
2017.05.24 - Barracuda updates KoreLogic on the status of the
remediation efforts.
2017.06.13 - 120 business days have elapsed since the issue was
reported.
2017.06.27 - Barracuda informs KoreLogic that the issue has
been fixed in the latest release of the WAF
virtual appliance.
2017.07.06 - KoreLogic public disclosure.

7. Proof of Concept

See 3. Technical Description


The contents of this advisory are copyright(c) 2017
KoreLogic, Inc. and are licensed under a Creative Commons
Attribution Share-Alike 4.0 (United States) License:
http://creativecommons.org/licenses/by-sa/4.0/

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proven track record of providing security services to entities
ranging from Fortune 500 to small and mid-sized companies. We
are a highly skilled team of senior security consultants doing
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https://www.korelogic.com/about-korelogic.html

Our public vulnerability disclosure policy is available at:
https://www.korelogic.com/KoreLogic-Public-Vulnerability-Disclosure-Policy.v2.2.txt


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