bugtraq - FW: Updated Version & Exploit - Privilege escalation in Nortel Contivity VPN Client V05

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Message-ID: <f5cdeb19050812074970ed9abc@mail.gmail.com>
Date: Fri, 12 Aug 2005 09:49:43 -0500
From: Jeff Peadro <jeff.peadro@...il.com>
To: bugtraq@...urityfocus.com, full-disclosure-bounces@...ts.grok.org.uk, 
	vuln@...unia.com, news@...uriteam.com, full-disclosure@...ts.grok.org.uk
Subject: FW: Updated Version & Exploit - Privilege
	escalation in Nortel Contivity VPN Client V05_01.030

Updated to add additional version & exploit details.  Reps to Crime Dog

Vulnerable Versions:
Nortel Contivity VPN Client V05_01.100

Patches/Workarounds:
Good question

Exploit:

1. With the Contivity client open click go into "Group
Authentication Options"

2. Select "Challenge Response Token" options.

3. Click on the "Software Token Directory" browse button.

4. Change Files of type: to All Files, navigate to the system32
directory and locate cmd.exe. Right click cmd.exe and choose Open.

The result is a command prompt running under the context of the
LocalSystem account.

Discovered by Crime Dog thecrimedog[at]sbcglobal[dot]net
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