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Server 2012 Workgroup Permissions and Guest Access

Posted on 2013-05-15
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Last Modified: 2013-05-15
We have deployed a Windows Server 2012 in a workgroup (regrettably). We have created users and applied the appropriate share and NTFS permissions.  This worked for about a day until we enabled the Guest account.  The Guest account is necessary for a piece of antiquated software that cannot be upgraded.  When we map drives as a particular user, or any user for that matter even the administrator, we receive access denied messages on folders without the Guest account added to the folder permissions.  Share permissions are always set to Everyone Full access.

When we disabled the Guest account begin seeing the following in the Security  log.  Looks like it is somehow mapping to the Guest account. We tried creating a new domain admin, clearing out Credentials on Windows 7 computer, rebooting, but not luck on XP or 7 computers.  Any thoughts.

Log Name:      Security
Source:        Microsoft-Windows-Security-Auditing
Date:          5/14/2013 9:39:45 PM
Event ID:      4625
Task Category: Logon
Level:         Information
Keywords:      Audit Failure
User:          N/A
Computer:      xxxxxx
Description:
An account failed to log on.

Subject:
      Security ID:            NULL SID
      Account Name:            -
      Account Domain:            -
      Logon ID:            0x0

Logon Type:                  3

Account For Which Logon Failed:
      Security ID:            NULL SID
      Account Name:            admin
      Account Domain:            xxxxx

Failure Information:
      Failure Reason:            Unknown user name or bad password.
      Status:                  0xC000006D
      Sub Status:            0xC0000064

Process Information:
      Caller Process ID:      0x0
      Caller Process Name:      -

Network Information:
      Workstation Name:      THETECH
      Source Network Address:      xxxxxxxxx
      Source Port:            50025

Detailed Authentication Information:
      Logon Process:            NtLmSsp
      Authentication Package:      NTLM
      Transited Services:      -
      Package Name (NTLM only):      -
      Key Length:            0

This event is generated when a logon request fails. It is generated on the computer where access was attempted.

The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).

The Process Information fields indicate which account and process on the system requested the logon.

The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information about this specific logon request.
      - Transited services indicate which intermediate services have participated in this logon request.
      - Package name indicates which sub-protocol was used among the NTLM protocols.
      - Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
    <EventID>4625</EventID>
    <Version>0</Version>
    <Level>0</Level>
    <Task>12544</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8010000000000000</Keywords>
    <TimeCreated SystemTime="2013-05-15T01:39:45.020503400Z" />
    <EventRecordID>5716</EventRecordID>
    <Correlation />
    <Execution ProcessID="680" ThreadID="4880" />
    <Channel>Security</Channel>
    <Computer>NGP-Server02</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="SubjectUserSid">S-1-0-0</Data>
    <Data Name="SubjectUserName">-</Data>
    <Data Name="SubjectDomainName">-</Data>
    <Data Name="SubjectLogonId">0x0</Data>
    <Data Name="TargetUserSid">S-1-0-0</Data>
    <Data Name="TargetUserName">admin</Data>
    <Data Name="TargetDomainName">ngp-server02</Data>
    <Data Name="Status">0xc000006d</Data>
    <Data Name="FailureReason">%%2313</Data>
    <Data Name="SubStatus">0xc0000064</Data>
    <Data Name="LogonType">3</Data>
    <Data Name="LogonProcessName">NtLmSsp </Data>
    <Data Name="AuthenticationPackageName">NTLM</Data>
    <Data Name="WorkstationName">THETECH</Data>
    <Data Name="TransmittedServices">-</Data>
    <Data Name="LmPackageName">-</Data>
    <Data Name="KeyLength">0</Data>
    <Data Name="ProcessId">0x0</Data>
    <Data Name="ProcessName">-</Data>
    <Data Name="IpAddress">xxxxxxxxxx</Data>
    <Data Name="IpPort">50025</Data>
  </EventData>
</Event>
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Question by:JonPz
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3 Comments
 

Author Comment

by:JonPz
ID: 39167867
Additional info.  I enabled auditing on a test folder.  No matter what user I enter when I mapped a drive, it always logs me on as guest.

Log Name:      Security
Source:        Microsoft-Windows-Security-Auditing
Date:          5/15/2013 8:40:42 AM
Event ID:      4776
Task Category: Credential Validation
Level:         Information
Keywords:      Audit Success
User:          N/A
Computer:     XXXXXX
Description:
The computer attempted to validate the credentials for an account.

Authentication Package:      MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Logon Account:      Guest
Source Workstation:      THETECH
0
 

Accepted Solution

by:
JonPz earned 0 total points
ID: 39167919
I fixed it.  For whatever reason the local security Policy changed. Has to be set to the following.

Computer configuration
Windows Settings
Security Settings
Local Policies
Security Options
Network access: Sharing and security model for local accounts

Set to:
Classic - local users authenticate as themselves
0
 

Author Closing Comment

by:JonPz
ID: 39167922
Good.
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