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CCE
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CCE-35222-9

Platform: cpe:/o:microsoft:windows_8.1Date: (C)2015-10-14   (M)2023-07-14



Microsoft network client: Digitally sign communications (always) This policy setting determines whether packet signing is required by the SMB client component. If you enable this policy setting, the Microsoft network client computer cannot communicate with a Microsoft network server unless that server agrees to sign SMB packets. In mixed environments with legacy client computers, set this option to Disabled because these computers will not be able to authenticate or gain access to domain controllers. However, you can use this policy setting in Windows 2000 or later environments. Note When Windows Vista?based computers have this policy setting enabled and they connect to file or print shares on remote servers, it is important that the setting is synchronized with its companion setting, Microsoft network server: Digitally sign communications (always), on those servers. For more information about these settings, see the 'Microsoft network client and server: Digitally sign communications (four related settings)' section in Chapter 5 of the Threats and Countermeasures guide.


Parameter:

[enable/disable]


Technical Mechanism:

(1) GPO: Computer ConfigurationWindows SettingsSecurity SettingsLocal PoliciesSecurity Options!Microsoft network client: Digitally sign communications (always) (2) REG: HKEY_LOCAL_MACHINESystemCurrentControlSetServicesLanmanWorkstationParameters!RequireSecuritySignature

CCSS Severity:CCSS Metrics:
CCSS Score : 8.1Attack Vector: NETWORK
Exploit Score: 2.2Attack Complexity: HIGH
Impact Score: 5.9Privileges Required: NONE
Severity: HIGHUser Interaction: NONE
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HScope: UNCHANGED
 Confidentiality: HIGH
 Integrity: HIGH
 Availability: HIGH
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:22517


OVAL    1
oval:org.secpod.oval:def:22517
XCCDF    6
xccdf_org.secpod_benchmark_NIST_800_53_r4_Windows_8_1
xccdf_org.secpod_benchmark_PCI_3_2_Windows_8_1
xccdf_org.secpod_benchmark_PCI_Windows_8_1
xccdf_org.secpod_benchmark_NIST_800_171_R1_Windows_8_1
...

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