STIGQter: STIG Summary: MS SQL Server 2016 Instance Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

Access to database files must be limited to relevant processes and to authorized, administrative users.

DISA Rule

SV-213977r617437_rule

Vulnerability Number

V-213977

Group Title

SRG-APP-000243-DB-000374

Rule Version

SQL6-D0-010000

Severity

CAT II

CCI(s)

• CCI-001090 - The information system prevents unauthorized and unintended information transfer via shared system resources.

Weight

10

Fix Recommendation

Remove any unauthorized permission grants from SQL Server data, log, and backup directories.

1) On the "Security" tab, highlight the user entry.
2) Click "Remove".

Check Contents

Review the permissions granted to users by the operating system/file system on the database files, database log files, and database backup files.

To obtain the location of SQL Server data, transaction log, and backup files, open and execute the supplemental file "Get SQL Data and Backup Directories.sql".

For each of the directories returned by the above script, verify whether the correct permissions have been applied.

1) Launch Windows Explorer.
2) Navigate to the folder.
3) Right-click the folder and click "Properties".
4) Navigate to the "Security" tab.
5) Review the listing of principals and permissions.

Account Type Directory Type Permission
-----------------------------------------------------------------------------------------------
Database Administrators ALL Full Control
SQL Server Service SID Data; Log; Backup; Full Control
SQL Server Agent Service SID Backup Full Control
SYSTEM ALL Full Control
CREATOR OWNER ALL Full Control

For information on how to determine a "Service SID", go to:
https://aka.ms/sql-service-sids

Additional permission requirements, including full directory permissions and operating system rights for SQL Server, are documented at:
https://aka.ms/sqlservicepermissions

If any additional permissions are granted but not documented as authorized, this is a finding.

Vulnerability Number

V-213977

Documentable

False

Rule Version

SQL6-D0-010000

Severity Override Guidance

Review the permissions granted to users by the operating system/file system on the database files, database log files, and database backup files.

To obtain the location of SQL Server data, transaction log, and backup files, open and execute the supplemental file "Get SQL Data and Backup Directories.sql".

For each of the directories returned by the above script, verify whether the correct permissions have been applied.

1) Launch Windows Explorer.
2) Navigate to the folder.
3) Right-click the folder and click "Properties".
4) Navigate to the "Security" tab.
5) Review the listing of principals and permissions.

Account Type Directory Type Permission
-----------------------------------------------------------------------------------------------
Database Administrators ALL Full Control
SQL Server Service SID Data; Log; Backup; Full Control
SQL Server Agent Service SID Backup Full Control
SYSTEM ALL Full Control
CREATOR OWNER ALL Full Control

For information on how to determine a "Service SID", go to:
https://aka.ms/sql-service-sids

Additional permission requirements, including full directory permissions and operating system rights for SQL Server, are documented at:
https://aka.ms/sqlservicepermissions

If any additional permissions are granted but not documented as authorized, this is a finding.

Check Content Reference

M

Target Key

3993

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