CCE-8804-7Platform: cpe:/o:microsoft:windows_7 | Date: (C)2012-05-18 (M)2023-07-04 |
Allow NTLM to fall back to NULL session when used with LocalSystem.
The default is TRUE up to Windows Vista and FALSE in Windows 7.
Countermeasure:
Configure Network security: Allow LocalSystem NULL session fallback to Disabled.
Potential Impact:
Any applications that require NULL sessions for LocalSystem will not work as designed.
Parameter:
[enabled/disabled]
Technical Mechanism:
(1) GPO: Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Network security: Allow LocalSystem NULL session fallback
(2) REG: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Lsa\MSV1_0!allownullsessionfallback
CCSS Severity: | CCSS Metrics: |
CCSS Score : 7.7 | Attack Vector: NETWORK |
Exploit Score: 1.8 | Attack Complexity: HIGH |
Impact Score: 5.3 | Privileges Required: LOW |
Severity: HIGH | User Interaction: NONE |
Vector: AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L | Scope: CHANGED |
| Confidentiality: HIGH |
| Integrity: LOW |
| Availability: LOW |
| |
References: Resource Id | Reference |
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SCAP Repo OVAL Definition | oval:gov.nist.usgcb.windowsseven:def:20016 |
BITS Shared Assessments SIG v6.0 | BITS Shared Assessments SIG v6.0 |
Jericho Forum | Jericho Forum |
HIPAA/HITECH Act | HIPAA/HITECH Act |
FedRAMP Security Controls(Final Release Jan 2012)--LOW IMPACT LEVEL-- | FedRAMP Security Controls(Final Release Jan 2012)--LOW IMPACT LEVEL-- |
ISO/IEC 27001-2005 | ISO/IEC 27001-2005 |
COBIT 4.1 | COBIT 4.1 |
GAPP (Aug 2009) | GAPP (Aug 2009) |
NERC CIP | NERC CIP |
NIST SP800-53 R3 | NIST SP800-53 R3 CM-7 |
NIST SP800-53 R3 | NIST SP800-53 R3 IA-2 |
PCIDSS v2.0 | PCIDSS v2.0 |
FedRAMP Security Controls(Final Release Jan 2012)--MODERATE IMPACT LEVEL-- | FedRAMP Security Controls(Final Release Jan 2012)--MODERATE IMPACT LEVEL-- |
BITS Shared Assessments AUP v5.0 | BITS Shared Assessments AUP v5.0 |