From Windows PAW Security Technical Implementation Guide
Part of PAW-00-001700
Associated with: CCI-001135 CCI-001136 CCI-002426
Note: The Common Criteria Security Functional Requirement (SFR) FTP_ITC.1.1(1) defines "trusted channel" as "a channel that uses IPsec, SSH, TLS, or TLS/HTTPS to provide a trusted communications channel between itself and authorized IT entity that is logically distinct from other communication channels and provides assured identification of its end points and protection of the channel data from modification or disclosure." The trusted channel uses IPsec, TLS, DTLS, or HTTPS as the protocol that preserves the confidentiality and integrity of PAW communications.
On the PAW workstation, verify IPsec, SSH, TLS, or TLS/HTTPS is configured for all connections between the PAW and managed IT resources on the intranet. Verify the following registry setting: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\ Value Name: Enabled Value Type: REG_DWORD Value: 1 Warning: Clients with this setting enabled will not be able to communicate via digitally encrypted or signed protocols with servers that do not support these algorithms. Both the browser and web server must be configured to use TLS; otherwise, the browser will not be able to connect to a secure site. If on the PAW workstation the registry value for HKEY_LOCAL_MACHINE does not exist or is not configured as specified, this is a finding.
Configure the PAWs to use IPsec, SSH, TLS, or TLS/HTTPS for all connections between the PAW and managed IT resources on the intranet. Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing" to "Enabled". Â
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