EP11-00-009700 - When invalid inputs are received, the EDB Postgres Advanced Server must behave in a predictable and documented manner that reflects organizational and system objectives.

Information

A common vulnerability is unplanned behavior when invalid inputs are received. This requirement guards against adverse or unintended system behavior caused by invalid inputs, where information system responses to the invalid input may be disruptive or cause the system to fail into an unsafe state.

The behavior will be derived from the organizational and system requirements and includes, but is not limited to, notification of the appropriate personnel, creating an audit record, and rejecting invalid input.

This calls for inspection of application source code, which will require collaboration with the application developers. It is recognized that in many cases, the database administrator (DBA) is organizationally separate from the application developers, and may have limited, if any, access to source code. Nevertheless, protections of this type are so important to the secure operation of databases that they must not be ignored. At a minimum, the DBA must attempt to obtain assurances from the development organization that this issue has been addressed, and must document what has been discovered.

Solution

Revise and deploy the source code for database program objects (stored procedures, functions, triggers) and application source code, to implement the documented behavior.

To enable EDB Auditing, execute the following SQL statements as the enterprisedb user:

ALTER SYSTEM SET edb_audit = csv;
SELECT pg_reload_conf();

or

ALTER SYSTEM SET edb_audit = xml;
SELECT pg_reload_conf();

To configure the edb_audit_statement parameter, execute the following SQL statements as the enterprisedb user:

ALTER SYSTEM SET edb_audit_statement = 'all';
SELECT pg_reload_conf();

or

Update the system documentation to note the organizationally approved setting and corresponding justification of the setting for this requirement.

If EDB SQL/Protect is being used to monitor and protect the EDB Postgres Advanced Server database from unexpected or unauthorized actions performed on database tables, install and configure SQL/Protect as documented in section 'Protecting Against SQL Injection Attacks' in the EDB Postgres Advanced Server Guide available at the following link:

https://www.enterprisedb.com/edb-docs/p/edb-postgres-advanced-server

Item Details

Audit Name: EDB PostgreSQL Advanced Server v11 DB Audit v2r4

Category: SYSTEM AND INFORMATION INTEGRITY

Plugin: PostgreSQLDB

Control ID: 1bba521d34fb7f42961d3a2654c5109477cd371e2bd1ebc9da9b55f69c1a01d8

Detections

Analytics

EP11-00-009700 - When invalid inputs are received, the EDB Postgres Advanced Server must behave in a predictable and documented manner that reflects organizational and system objectives.

Information

Solution

See Also

Item Details