STIGQter: STIG Summary: Crunchy Data Postgres 16 Security Technical Implementation Guide Version: 1 Release: 3 Benchmark Date: 01 Jul 2026:

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

DISA Rule

SV-261904r1137658_rule

Vulnerability Number

V-261904

Group Title

SRG-APP-000243-DB-000374

Rule Version

CD16-00-005600

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Note: The following instructions use the PGDATA environment variable. Refer to APPENDIX-F for instructions on configuring PGDATA.

Configure the permissions granted by the operating system/file system on the database files, database log files, and database backup files so that only relevant system accounts and authorized system administrators and database administrators with a need to know are permitted to read/view these files.

Any files (for example: extra configuration files) created in ${PGDATA?} must be owned by the database administrator, with only owner permissions to read, write, and execute.

Check Contents

Note: The following instructions use the PGDATA environment variable. Refer to APPENDIX-F for instructions on configuring PGDATA.

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

To verify that all files are owned by the database administrator and have the correct permissions, run the following as the database administrator (shown here as "postgres"):

$ sudo su - postgres
$ ls -lR ${PGDATA?}

If any files are not owned by the database administrator or allow anyone but the database administrator to read/write/execute, this is a finding.

If any user/role that is not an authorized system administrator with a need-to-know or database administrator with a need-to-know, or a system account for running PostgreSQL processes, is permitted to read/view any of these files, this is a finding.

Vulnerability Number

V-261904

Documentable

False

Rule Version

CD16-00-005600

Severity Override Guidance

Note: The following instructions use the PGDATA environment variable. Refer to APPENDIX-F for instructions on configuring PGDATA.

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

To verify that all files are owned by the database administrator and have the correct permissions, run the following as the database administrator (shown here as "postgres"):

$ sudo su - postgres
$ ls -lR ${PGDATA?}

If any files are not owned by the database administrator or allow anyone but the database administrator to read/write/execute, this is a finding.

If any user/role that is not an authorized system administrator with a need-to-know or database administrator with a need-to-know, or a system account for running PostgreSQL processes, is permitted to read/view any of these files, this is a finding.

Check Content Reference

M

Target Key

5598