STIGQter: STIG Summary: MS SQL Server 2014 Database Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 26 Jan 2018:

The Database Master Key must be encrypted by the Service Master Key, where a Database Master Key is required and another encryption method has not been specified.

DISA Rule

SV-81871r1_rule

Vulnerability Number

V-67381

Group Title

SRG-APP-000231-DB-000154

Rule Version

SQL4-00-024100

Severity

CAT II

CCI(s)

• CCI-001199 - The information system protects the confidentiality and/or integrity of organization-defined information at rest.

Weight

10

Fix Recommendation

Where possible, encrypt the Database Master Key with a password known only to the application administrator. Where not possible, configure additional audit events or alerts to detect unauthorized access to the Database Master Key by users not authorized to view sensitive data.

Check Contents

If no databases require encryption, this is not a finding.

From the query prompt:
SELECT name
FROM [master].sys.databases
WHERE is_master_key_encrypted_by_server = 1
AND owner_sid <> 1
AND state = 0;
(Note that this query assumes that the [sa] account is not used as the owner of application databases, in keeping with other STIG guidance. If this is not the case, modify the query accordingly.)

If no databases are returned by the query, this is not a finding.

For any databases returned, verify in the System Security Plan that encryption of the Database Master Key using the Service Master Key is acceptable and approved by the Information Owner, and the encrypted data does not require additional protections to deter or detect DBA access. If not approved, this is a finding.

If approved and additional protections are required, then verify the additional requirements are in place in accordance with the System Security Plan. These may include additional auditing on access of the Database Master Key with alerts or other automated monitoring.

If the additional requirements are not in place, this is a finding.

Vulnerability Number

V-67381

Documentable

False

Rule Version

SQL4-00-024100

Severity Override Guidance

If no databases require encryption, this is not a finding.

From the query prompt:
SELECT name
FROM [master].sys.databases
WHERE is_master_key_encrypted_by_server = 1
AND owner_sid <> 1
AND state = 0;
(Note that this query assumes that the [sa] account is not used as the owner of application databases, in keeping with other STIG guidance. If this is not the case, modify the query accordingly.)

If no databases are returned by the query, this is not a finding.

For any databases returned, verify in the System Security Plan that encryption of the Database Master Key using the Service Master Key is acceptable and approved by the Information Owner, and the encrypted data does not require additional protections to deter or detect DBA access. If not approved, this is a finding.

If approved and additional protections are required, then verify the additional requirements are in place in accordance with the System Security Plan. These may include additional auditing on access of the Database Master Key with alerts or other automated monitoring.

If the additional requirements are not in place, this is a finding.

Check Content Reference

M

Target Key

2637

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