bugtraq - DOINGSOFT-2008-02-11 - IPDiva VPN SSL Brute force attack

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Date: Thu, 14 Feb 2008 20:32:28 +0100
From: eagle <eagle@...ckers.fr>
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: DOINGSOFT-2008-02-11  - IPDiva VPN SSL Brute force attack

ID : DOINGSOFT-2008-02-11-001


Discovered : 15/10/2007
-----------------
Corrected : 15/11/2007
----------------
Publication :11/02/2008
----------------
Affected Software  : IPDiva VPNSSL
Versions  :
	 Users who autenticate with login et passwd without OTP systems
     * 2.2 branch < 2.2.8.84
     * 2.3 branch < 2.3.2.14
-------------------
Vulnerability :  Brute force attack

Description :
				The IPDiva Mediation server suffer of cookie exploitation  
vulnerability. A mecanism of limitation after a number of bad login/ 
passwd exist based on a cookie. When the cookie is null, the account  
is blocked. With the modification of the cookie to a value like 4242,   
we can try a unlimited number of connection if the cookie is resetted  
when it reached 2