Penetration Testing mailing list archives

RE: Testing two bank laptops. winxp vpn client


From: "jeremiah" <jeremiah () nur net>
Date: Sun, 12 Feb 2006 11:42:40 -0800

Disable cached credentials via a domain Group Policy Object.  The best way
to do this is by creating a container group for the laptop machine accounts
in the domain.

Caveats?  The user will have to login via a RAS connection.  The other
alternative is two-factor auth, which will allow safe use of cached creds.

"To turn off cached credentials, use a Group Policy Object (GPO) to set the
number of cached credentials to zero. Users can still log on using local
user accounts, but in most environments, it's unusual for users to have
local user accounts on their clients. You might consider changing the cached
credential setting only for desktop computers, as laptop users may have a
legitimate need to log on when they can't contact a DC."
http://www.mcpmag.com/columns/print.asp?EditorialsID=658

More here:
http://www.windowsecurity.com/articles/Implementing-Troubleshooting-Account-
Lockout.html

http://www.windowsdevcenter.com/pub/a/windows/2004/05/18/ug_caching.html

http://www.windowsdevcenter.com/pub/a/windows/2004/05/18/ug_caching.html



-----Original Message-----
From: Bob WIlliams [mailto:sopiaz57 () gmail com]
Sent: Sunday, February 12, 2006 9:34 AM
To: pen-test () securityfocus com
Subject: Testing two bank laptops. winxp vpn client

Hey All,

I have a client who wants two bank laptops tested.  I want to do some
reasearch on a fix for a problem I know they are vulnerable too.  They
use the WIN xp VPN client which saves the password, giving someone who
steals the laptop an easy way into the corporate network.

Does anyone know how I can disable this feature so employees cant save
the password?

Thanks in advance//

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------------------------------------------------------------------------------
Audit your website security with Acunetix Web Vulnerability Scanner: 

Hackers are concentrating their efforts on attacking applications on your 
website. Up to 75% of cyber attacks are launched on shopping carts, forms, 
login pages, dynamic content etc. Firewalls, SSL and locked-down servers are 
futile against web application hacking. Check your website for vulnerabilities 
to SQL injection, Cross site scripting and other web attacks before hackers do! 
Download Trial at:

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