If I remember correctly, On a Win2k box, the default behavior is to 
allow administrator access when there is a blank password.  Microsoft 
changed this behavior in XP.  If the password is blank, the 
Administrator cannot log in remotely.  As soon as you give it a 
password, then you can log in remotely.  So technically, there isn't a 
hole, even if the password is still blank.

Todd

Tucker, Brock - St. Louis, MO wrote:
> I might start with the firewall on XP. I imagine that if it's on, it
> might prevent certain tests from producing results. Just a thought.
> Could be wrong.
> 
> Brock Tucker
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Huu Khiem
> Sent: Monday, October 08, 2007 4:43 AM
> To: [email protected]
> Subject: Cannot discover blank password admin WinXP
> 
> Hi All,
> 
> 
> I use Nessus scanner 3.0.6 (up-to-date plugins) to
> scan a remote Pc (OS:Windows XP Pro - SP2) with blank
> password administrator, but it couldn't discover this
> hole while it's OK with Windows 2000.
> 
> Could you give me your advice. Thanks
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> 
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