The EDB Postgres Advanced Server must allow only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-259215	EPAS-00-001100	SV-259215r960882_rule		Medium

Description
Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent or interfere with the auditing of critical events. Suppression of auditing could permit an adversary to evade detection. Misconfigured audits can degrade the system's performance by overwhelming the audit log. Misconfigured audits may also make it more difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.

Description

Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent or interfere with the auditing of critical events. Suppression of auditing could permit an adversary to evade detection. Misconfigured audits can degrade the system's performance by overwhelming the audit log. Misconfigured audits may also make it more difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.

STIG	Date
EnterpriseDB Postgres Advanced Server (EPAS) Security Technical Implementation Guide	2024-06-10

Details

Check Text ( C-62954r938696_chk )
Run the command "ls -al postgresql.conf" to show file permissions. The default path for the postgresql.conf files is /var/lib/edb/as/data, but this will vary according to local circumstances. If the files are not owned by enterprisedb (user)/enterprisedb (group) or do not have RW permission for the user only, this is a finding.

Fix Text (F-62863r938697_fix)
Run these commands as the "root" user (or user with sudo privileges) from the EDB Postgres Advanced Server data (PGDATA) directory: > chown enterprisedb postgresql.conf > chgrp enterprisedb postgresql.conf > chmod 600 postgresql.conf The default path for the postgresql.conf files is /var/lib/edb/as/data (PGDATA), but this will vary according to local circumstances. Run these commands as the "root" user (or user with sudo privileges) from the EDB Postgres Advanced Server data (PGDATA) directory: > chown enterprisedb postgresql.conf > chgrp enterprisedb postgresql.conf > chmod 600 postgresql.conf The default path for the postgresql.conf files is /var/lib/edb/as/data (PGDATA), but this will vary according to local circumstances.

Fix Text (F-62863r938697_fix)

Run these commands as the "root" user (or user with sudo privileges) from the EDB Postgres Advanced Server data (PGDATA) directory:

> chown enterprisedb postgresql*.conf
> chgrp enterprisedb postgresql*.conf
> chmod 600 postgresql*.conf

The default path for the postgresql*.conf files is /var/lib/edb/as/data (PGDATA), but this will vary according to local circumstances. Run these commands as the "root" user (or user with sudo privileges) from the EDB Postgres Advanced Server data (PGDATA) directory:

> chown enterprisedb postgresql*.conf
> chgrp enterprisedb postgresql*.conf
> chmod 600 postgresql*.conf

The default path for the postgresql*.conf files is /var/lib/edb/as/data (PGDATA), but this will vary according to local circumstances.