Finding ID | Version | Rule ID | IA Controls | Severity |
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V-21952 | 3.152 | SV-25275r1_rule | ECSC-1 | Medium |
Description |
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This setting prevents NTLM from falling back to a Null (unauthenticated) session. |
STIG | Date |
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Windows 7 Security Technical Implementation Guide | 2014-01-07 |
Check Text ( C-26836r1_chk ) |
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Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network Security: Allow LocalSystem NULL session fallback” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \System\CurrentControlSet\Control\LSA\MSV1_0\ Value Name: allownullsessionfallback Type: REG_DWORD Value: 0 |
Fix Text (F-22941r1_fix) |
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Configure the policy value for “Network Security: Allow LocalSystem NULL session fallback” to “Disabled”. |