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Re: Avoid sending current credentials automatically over the network
.

  • To: "Shenk, Jerry A" <[EMAIL PROTECTED]>, Umil <[EMAIL PROTECTED]>, PenTest <[EMAIL PROTECTED]>
  • Subject: Re: Avoid sending current credentials automatically over the network
  • From: "Thor (Hammer of God)" <[EMAIL PROTECTED]>
  • Date: Tue, 13 Feb 2007 17:54:43 -0800
  • In-reply-to: <[EMAIL PROTECTED]>
  • Thread-index: AcdPnKqiDxMFpLA3RQWboB2p/lDySAAAbKJwAA8u0qo=
  • Thread-topic: Avoid sending current credentials automatically over the network
.
 
That's what I was going to say as well-- use local fw to block outbound
NetBIOS/CIFS to everything except a particular scope... That and only use
NTLMv2 (and Kerberos).
t


On 2/13/07 10:40 AM, "Shenk, Jerry A" <[EMAIL PROTECTED]> spoketh
to all:

> I would recommend blocking those ports (135, 137, 139 and 445) at the
> edge router so that at least they aren't sent over the internet.  For
> some machines, perhaps you want a host firewall to block them from
> leaving the box at all.
> 
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> On Behalf Of Umil
> Sent: Tuesday, February 13, 2007 10:21 AM
> To: [EMAIL PROTECTED]
> Subject: Avoid sending current credentials automatically over the
> network
> 
> Hi all
> 
> 
> When mapping a network share without any credentials parameter or when
> clicking in a link for a internal app Windows and IE automatically send
> the 
> current users credentials automatically. Aparently for IE you can
> configure 
> to send anonymous creds (guest account) and then ask for creds.
> However over the network there is no option to avoid sending current
> users 
> creds automatically. I tried smb signing but it didn't work.
> Does anyone know a solution for it?
> Thanks
> Uno 
> 
> 
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This List Sponsored by: Cenzic

Need to secure your web apps?
Cenzic Hailstorm finds vulnerabilities fast.
Click the link to buy it, try it or download Hailstorm for FREE.

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