An error occurred:

Check: 5.123

Windows Vista STIG: 5.123 (in versions v6 r42 through v6 r41)

Title

Restrict unauthenticated RPC clients. (Cat II impact)

Discussion

This check verifies that the system is configured to restrict unauthenticated RPC clients from connecting to the RPC server.

Check Content

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Rpc\ Value Name: RestrictRemoteClients Type: REG_DWORD Value: 1

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Procedure Call “Restrictions for Unauthenticated RPC clients” to “Enabled” and “Authenticated”.

Additional Identifiers

Rule ID: SV-29408r1_rule

Vulnerability ID: V-14253

Group Title: RPC - Unauthenticated RPC Clients

Expert Comments

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CCIs

CCIs tied to check.
Number Definition
CCI-001967

The information system authenticates organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based.

Controls

Controls tied to check. These are derived from the CCIs shown above.
Number Title
IA-3 (1)

Cryptographic Bidirectional Authentication