SQL6-D0-003200 - SQL Server must use NSA-approved cryptography to protect classified information in accordance with the data owners requirements - OS

Information

Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The application must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.

It is the responsibility of the data owner to assess the cryptography requirements in light of applicable federal laws, Executive Orders, directives, policies, regulations, and standards.

NSA-approved cryptography for classified networks is hardware based. This requirement addresses the compatibility of a DBMS with the encryption devices.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

Configure cryptographic functions to use NSA-approved cryptography compliant algorithms.

Use DoD code-signing certificates to create asymmetric keys stored in the database used to encrypt sensitive data stored in the database.

Run the following SQL script to create a certificate:
USE
CREATE CERTIFICATE
ENCRYPTION BY PASSWORD = <'password'>
FROM FILE = <'path/file_name'>
WITH SUBJECT = 'name of person creating key',
EXPIRY_DATE = '<'expiration date: yyyymmdd'>'

Run the following SQL script to create a symmetric key and assign an existing certificate:
USE
CREATE SYMMETRIC KEY <'key name'>
WITH ALGORITHM = AES_256
ENCRYPTION BY CERTIFICATE

For Transparent Data Encryption (TDE):
USE master;
CREATE MASTER KEY ENCRYPTION BY PASSWORD = '';
CREATE CERTIFICATE . . .;
USE ;
CREATE DATABASE ENCRYPTION KEY
WITH ALGORITHM = AES_256
ENCRYPTION BY SERVER CERTIFICATE ;
ALTER DATABASE
SET ENCRYPTION ON;

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_SQL_Server_2016_Y24M01_STIG.zip

Item Details

References: CAT|I, CCI|CCI-002450, Rule-ID|SV-251040r879944_rule, STIG-ID|SQL6-D0-003200, STIG-Legacy|SV-93819, STIG-Legacy|V-79113, Vuln-ID|V-251040

Plugin: MS_SQLDB

Control ID: cba0c7f6c67a0dfc7025f51735d1f821ddadee3b867ea6751be740fa3d364ff3