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Check: WN12-CC-000124

Microsoft Windows Server 2012/2012 R2 Member Server STIG: WN12-CC-000124 (in versions v3 r7 through v2 r7)

Title

The Windows Remote Management (WinRM) client must not allow unencrypted traffic. (Cat II impact)

Discussion

Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.

Check Content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\WinRM\Client\ Value Name: AllowUnencryptedTraffic Type: REG_DWORD Value: 0

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Client -> "Allow unencrypted traffic" to "Disabled".

Additional Identifiers

Rule ID: SV-225397r877382_rule

Vulnerability ID: V-225397

Group Title: SRG-OS-000393-GPOS-00173

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-002890	The information system implements cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications.
CCI-003123	The information system implements cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
MA-4 (6)	Cryptographic Protection