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Re: LDAP allows anonymous binds

Subject: Re: LDAP allows anonymous binds
Date: Tue, 13 Nov 2007 21:52:10 -0500
On 11/13/07 12:30, PJ Bender wrote:

  When Nessus was run against our two Domain Controllers, we received 
the following report:

*Synopsis*: It is possible to disclose LDAP information.
...
*Solution*: Disable NULL BIND on your LDAP server
...
 I  don’t think it is this problem.

FWIW, the plugin actually tries to query a server without authenticating 
(ie, a "NULL BIND") and checks for a response. So it might be useful to 
capture packets to/from the affected LDAP services and see what is being 
returned.

Can someone let me know where I can go to find a method(s) to disable 
the null bind on my Windows 2003 LDAP server(s)?

Have you searched Microsoft's site? For example: check out the 
discussion of "dsHeuristics" in:

   http://support.microsoft.com/kb/326690/

George
-- 
theall@tenablesecurity.com
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