CCE-10812-6| Platform: cpe:/o:microsoft:windows_server_2008:r2 | Date: (C)2012-03-13 (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 |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:8789 |
