STIGQter: STIG Summary: Microsoft Windows Server 2016 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

Windows Server 2016 must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.

DISA Rule

SV-225059r569186_rule

Vulnerability Number

V-225059

Group Title

SRG-OS-000033-GPOS-00014

Rule Version

WN16-SO-000430

Severity

CAT II

CCI(s)

• CCI-000068 - The information system implements cryptographic mechanisms to protect the confidentiality of remote access sessions.
• CCI-002450 - The information system implements organization-defined cryptographic uses and type of cryptography required for each use in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.

Weight

10

Fix Recommendation

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".

Check Contents

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: \SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\

Value Name: Enabled

Value Type: REG_DWORD
Value: 0x00000001 (1)

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.

Vulnerability Number

V-225059

Documentable

False

Rule Version

WN16-SO-000430

Severity Override Guidance

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: \SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\

Value Name: Enabled

Value Type: REG_DWORD
Value: 0x00000001 (1)

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.

Check Content Reference

M

Target Key

4205

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