Re: Using Null Session information from NAT.EXE

From: Mike Brentlinger (mdbrentlingerat_private)
Date: Tue Oct 30 2001 - 13:34:22 PST

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    im my experiance the format of net use has not been
         NET USE Z: xxx.xxx.xxx.xxx\c$ /user:administrator password
    but has worked as
        net use z:\ xxx.xxx.xxx.xxx\c$ password /u:domain\user
    which connects automatically or
        net use z:\ xxx.xxx.xxx.xxx\c$ * /u:domain\user
    which prompts you for a masked password
    
    also you may want to terminate current connections with somehting like
    
    net use \\xxx.xxx.xxx.xxx /delete
    
    before running your connection commands, since you will be connected with 
    anonymous creditials from running nat
    
    -mdb
    
    
    
    ----Original Message Follows----
    From: "Ian Lyte" <ianlyteat_private>
    To: pen-testat_private
    Subject: Using Null Session information from NAT.EXE
    Date: Tue, 30 Oct 2001 17:39:30
    
    Running NAT.EXE on a machine my local network gives me the following results
    [obvious bits changed]
    
    
    [*]--- Reading usernames from user.txt
    [*]--- Reading passwords from bigpass.txt
    
    [*]--- Checking host: xxx.xxx.xxx.xxx
    [*]--- Obtaining list of remote NetBIOS names
    
    [*]--- Attempting to connect with name: *
    [*]--- Unable to connect
    
    [*]--- Attempting to connect with name: *SMBSERVER
    [*]--- CONNECTED with name: *SMBSERVER
    [*]--- Attempting to connect with protocol: MICROSOFT NETWORKS 1.03
    [*]--- Server time is Tue Oct 30 14:30:36 2001
    [*]--- Timezone is UTC+0.0
    [*]--- Remote server wants us to encrypt, telling it not to
    
    [*]--- Attempting to connect with name: *SMBSERVER
    [*]--- CONNECTED with name: *SMBSERVER
    [*]--- Attempting to establish session
    [*]--- Was not able to establish session with no password
    [*]--- Attempting to connect with Username: `ADMINISTRATOR' Password: `0'
    
    <---SNIP--->
    
    [*]--- Attempting to connect with Username: `ADMINISTRATOR' Password:
    `password'
    [*]--- CONNECTED: Username: `ADMINISTRATOR' Password: `password'
    
    [*]--- Obtained server information:
    
    Server=[xxxxxxx] User=[] Workgroup=[xxxxxxx] Domain=[]
    
    [*]--- Attempting to access share: \\*SMBSERVER\ <file://\\*SMBSERVER\>
    [*]--- Unable to access
    
    [*]--- Attempting to access share: \\*SMBSERVER\ADMIN$
    <file://\\*SMBSERVER\ADMIN$>
    [*]--- WARNING: Able to access share: \\*SMBSERVER\ADMIN$
    <file://\\*SMBSERVER\ADMIN$>
    [*]--- Checking write access in: \\*SMBSERVER\ADMIN$
    <file://\\*SMBSERVER\ADMIN$>
    [*]--- WARNING: Directory is writeable: \\*SMBSERVER\ADMIN$
    <file://\\*SMBSERVER\ADMIN$>
    [*]--- Attempting to exercise .. bug on: \\*SMBSERVER\ADMIN$
    <file://\\*SMBSERVER\ADMIN$>
    
    [*]--- Attempting to access share: \\*SMBSERVER\C$ <file://\\*SMBSERVER\C$>
    [*]--- WARNING: Able to access share: \\*SMBSERVER\C$
    <file://\\*SMBSERVER\C$>
    [*]--- Checking write access in: \\*SMBSERVER\C$ <file://\\*SMBSERVER\C$>
    [*]--- WARNING: Directory is writeable: \\*SMBSERVER\C$
    <file://\\*SMBSERVER\C$>
    [*]--- Attempting to exercise .. bug on: \\*SMBSERVER\C$
    <file://\\*SMBSERVER\C$>
    
    [*]--- Attempting to access share: \\*SMBSERVER\D$ <file://\\*SMBSERVER\D$>
    [*]--- WARNING: Able to access share: \\*SMBSERVER\D$
    <file://\\*SMBSERVER\D$>
    [*]--- Checking write access in: \\*SMBSERVER\D$ <file://\\*SMBSERVER\D$>
    [*]--- WARNING: Directory is writeable: \\*SMBSERVER\D$
    <file://\\*SMBSERVER\D$>
    [*]--- Attempting to exercise .. bug on: \\*SMBSERVER\D$
    <file://\\*SMBSERVER\D$>
    
    [*]--- Attempting to access share: \\*SMBSERVER\ROOT
    <file://\\*SMBSERVER\ROOT>
    [*]--- Unable to access
    
    [*]--- Attempting to access share: \\*SMBSERVER\WINNT$
    <file://\\*SMBSERVER\WINNT$>
    [*]--- Unable to access
    
    
    Now from here I thought it would just be a case of
    
    NET USE Z: xxx.xxx.xxx.xxx\c$ /user:administrator password
    
    to map the C$ to a local z:
    
    However every time I try that it gives me a
    
    System error 1326 has occurred.
    Logon Failure: unknown user name or bad password.
    
    Now I have gone to the machine and know that the user:pass combo is correct.
    
    So, what am I doing wrong? I've searched the archives to no avail and I
    notice on Google groups that a lot of people have asked the same question
    but not received an answer. So I am turning to you guys ;)
    
    Ian
    
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