STIGQter: STIG Summary: MS SQL Server 2016 Database Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 23 Oct 2020:

The role(s)/group(s) used to modify database structure (including but not necessarily limited to tables, indexes, storage, etc.) and logic modules (stored procedures, functions, triggers, links to software external to SQL Server, etc.) must be restricted to authorized users.

DISA Rule

SV-213909r508025_rule

Vulnerability Number

V-213909

Group Title

SRG-APP-000133-DB-000362

Rule Version

SQL6-D0-001400

Severity

CAT II

CCI(s)

• CCI-001499 - The organization limits privileges to change software resident within software libraries.

Weight

10

Fix Recommendation

Document and obtain approval for any non-administrative users who require the ability to modify database structure and logic modules.

REVOKE ALTER ON [<Object Name>] TO [<Principal Name>]

Check Contents

Obtain a listing of users and roles who are authorized to modify database structure and logic modules from the server documentation.

Execute the following query:
SELECT P.type_desc AS principal_type, P.name AS principal_name, O.type_desc,
CASE class
WHEN 0 THEN DB_NAME()
WHEN 1 THEN OBJECT_SCHEMA_NAME(major_id) + '.' + OBJECT_NAME(major_id)
WHEN 3 THEN SCHEMA_NAME(major_id)
ELSE class_desc + '(' + CAST(major_id AS nvarchar) + ')'
END AS securable_name, DP.state_desc, DP.permission_name
FROM sys.database_permissions DP
JOIN sys.database_principals P ON DP.grantee_principal_id = P.principal_id
LEFT OUTER JOIN sys.all_objects O ON O.object_id = DP.major_id AND O.type IN ('TR','TA','P','X','RF','PC','IF','FN','TF','U')
WHERE DP.type IN ('AL','ALTG') AND DP.class IN (0, 1, 53)

SELECT R.name AS role_name, M.type_desc AS principal_type, M.name AS principal_name
FROM sys.database_principals R
JOIN sys.database_role_members DRM ON R.principal_id = DRM.role_principal_id
JOIN sys.database_principals M ON DRM.member_principal_id = M.principal_id
WHERE R.name IN ('db_ddladmin','db_owner')
AND M.name != 'dbo'

If any users or role permissions returned are not authorized to modify the specified object or type, this is a finding.

If any user or role membership is not authorized, this is a finding.

Vulnerability Number

V-213909

Documentable

False

Rule Version

SQL6-D0-001400

Severity Override Guidance

Obtain a listing of users and roles who are authorized to modify database structure and logic modules from the server documentation.

Execute the following query:
SELECT P.type_desc AS principal_type, P.name AS principal_name, O.type_desc,
CASE class
WHEN 0 THEN DB_NAME()
WHEN 1 THEN OBJECT_SCHEMA_NAME(major_id) + '.' + OBJECT_NAME(major_id)
WHEN 3 THEN SCHEMA_NAME(major_id)
ELSE class_desc + '(' + CAST(major_id AS nvarchar) + ')'
END AS securable_name, DP.state_desc, DP.permission_name
FROM sys.database_permissions DP
JOIN sys.database_principals P ON DP.grantee_principal_id = P.principal_id
LEFT OUTER JOIN sys.all_objects O ON O.object_id = DP.major_id AND O.type IN ('TR','TA','P','X','RF','PC','IF','FN','TF','U')
WHERE DP.type IN ('AL','ALTG') AND DP.class IN (0, 1, 53)

SELECT R.name AS role_name, M.type_desc AS principal_type, M.name AS principal_name
FROM sys.database_principals R
JOIN sys.database_role_members DRM ON R.principal_id = DRM.role_principal_id
JOIN sys.database_principals M ON DRM.member_principal_id = M.principal_id
WHERE R.name IN ('db_ddladmin','db_owner')
AND M.name != 'dbo'

If any users or role permissions returned are not authorized to modify the specified object or type, this is a finding.

If any user or role membership is not authorized, this is a finding.

Check Content Reference

M

Target Key

3992

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