STIGQter: STIG Summary: PostgreSQL 9.x Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 23 Oct 2020:

PostgreSQL must generate audit records when security objects are modified.

DISA Rule

SV-214107r508027_rule

Vulnerability Number

V-214107

Group Title

SRG-APP-000496-DB-000334

Rule Version

PGS9-00-006600

Severity

CAT II

CCI(s)

• CCI-000172 - The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3.

Weight

10

Fix Recommendation

Note: The following instructions use the PGDATA and PGVER environment variables. See supplementary content APPENDIX-F for instructions on configuring PGDATA and APPENDIX-H for PGVER.

To ensure that logging is enabled, review supplementary content APPENDIX-C for instructions on enabling logging. 

Using pgaudit the DBMS (PostgreSQL) can be configured to audit these requests. See supplementary content `APPENDIX-B` for documentation on installing `pgaudit`. 

With pgaudit installed the following configurations can be made: 

$ sudo su - postgres 
$ vi ${PGDATA?}/postgresql.conf 

Add the following parameters (or edit existing parameters): 

pgaudit.log_catalog = 'on' 
pgaudit.log='ddl, role, read, write' 

Now, as the system administrator, reload the server with the new configuration: 

# SYSTEMD SERVER ONLY 
$ sudo systemctl reload postgresql-${PGVER?}

# INITD SERVER ONLY 
$ sudo service postgresql-${PGVER?} reload

Check Contents

First, as the database administrator, verify pgaudit is enabled by running the following SQL: 

$ sudo su - postgres 
$ psql -c "SHOW shared_preload_libraries" 

If the results does not contain pgaudit, this is a finding. 

Next, verify that role, read, write, and ddl auditing are enabled: 

$ psql -c "SHOW pgaudit.log" 

If the output does not contain role, read, write, and ddl, this is a finding. 

Next, verify that accessing the catalog is audited by running the following SQL: 

$ psql -c "SHOW pgaudit.log_catalog" 

If log_catalog is not on, this is a finding.

Vulnerability Number

V-214107

Documentable

False

Rule Version

PGS9-00-006600

Severity Override Guidance

First, as the database administrator, verify pgaudit is enabled by running the following SQL: 

$ sudo su - postgres 
$ psql -c "SHOW shared_preload_libraries" 

If the results does not contain pgaudit, this is a finding. 

Next, verify that role, read, write, and ddl auditing are enabled: 

$ psql -c "SHOW pgaudit.log" 

If the output does not contain role, read, write, and ddl, this is a finding. 

Next, verify that accessing the catalog is audited by running the following SQL: 

$ psql -c "SHOW pgaudit.log_catalog" 

If log_catalog is not on, this is a finding.

Check Content Reference

M

Target Key

3994

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