STIGQter: STIG Summary: Crunchy Data PostgreSQL Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 20 Nov 2020:

PostgreSQL must allow only the Information System Security Manager (ISSM), or individuals or roles appointed by the ISSM, to select which auditable events are to be audited.

DISA Rule

SV-233534r617333_rule

Vulnerability Number

V-233534

Group Title

SRG-APP-000090-DB-000065

Rule Version

CD12-00-002600

Severity

CAT II

CCI(s)

• CCI-000171 - The information system allows organization-defined personnel or roles to select which auditable events are to be audited by specific components of the information system.

Weight

10

Fix Recommendation

Configure PostgreSQL's settings to allow designated personnel to select which auditable events are audited.

Using pgaudit allows administrators the flexibility to choose what they log. For an overview of the capabilities of pgaudit, see https://github.com/pgaudit/pgaudit.

See supplementary content APPENDIX-B for documentation on installing pgaudit.

See supplementary content APPENDIX-C for instructions on enabling logging. Only administrators/superuser can change PostgreSQL configurations. Access to the database administrator must be limited to designated personnel only.

To ensure that postgresql.conf is owned by the database owner:

$ chown postgres:postgres ${PGDATA?}/postgresql.conf
$ chmod 600 ${PGDATA?}/postgresql.conf

Check Contents

Note: The following instructions use the PGDATA environment variable. See supplementary content APPENDIX-F for instructions on configuring PGDATA.

Check PostgreSQL settings and documentation to determine whether designated personnel are able to select which auditable events are being audited.

As the database administrator (shown here as "postgres"), verify the permissions for PGDATA:

$ ls -la ${PGDATA?}

If anything in PGDATA is not owned by the database administrator, this is a finding.

Next, as the database administrator, run the following SQL:

$ sudo su - postgres
$ psql -c "\du"

Review the role permissions, if any role is listed as superuser but should not have that access, this is a finding.

Vulnerability Number

V-233534

Documentable

False

Rule Version

CD12-00-002600

Severity Override Guidance

Note: The following instructions use the PGDATA environment variable. See supplementary content APPENDIX-F for instructions on configuring PGDATA.

Check PostgreSQL settings and documentation to determine whether designated personnel are able to select which auditable events are being audited.

As the database administrator (shown here as "postgres"), verify the permissions for PGDATA:

$ ls -la ${PGDATA?}

If anything in PGDATA is not owned by the database administrator, this is a finding.

Next, as the database administrator, run the following SQL:

$ sudo su - postgres
$ psql -c "\du"

Review the role permissions, if any role is listed as superuser but should not have that access, this is a finding.

Check Content Reference

M

Target Key

5254

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