EP11-00-000900 - The EDB Postgres Advanced Server must protect against a user falsely repudiating by ensuring all accounts are individual, unique, and not shared.

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Information

Non-repudiation of actions taken is required in order to maintain data integrity. Examples of particular actions taken by individuals include creating information, sending a message, approving information (e.g., indicating concurrence or signing a contract), and receiving a message.

Non-repudiation protects against later claims by a user of not having created, modified, or deleted a particular data item or collection of data in the database.

In designing a database, the organization must define the types of data and the user actions that must be protected from repudiation. The implementation must then include building audit features into the application data tables, and configuring the DBMS' audit tools to capture the necessary audit trail. Design and implementation also must ensure that applications pass individual user identification to the DBMS, even where the application connects to the DBMS with a standard, group account.

Solution

Use accounts assigned to individual users where feasible. Configure the DBMS to provide individual accountability at the DBMS level, and in audit logs, for actions performed under a shared database account.

Modify any applications that use a shared database account to capture individual application user identities to the audit log using the edb_audit_tag or to the data tables.

Create and enforce the use of individual user IDs for logging on to EDB Postgres tools and third-party products.

If EDB auditing is not already enabled, enable it.

Execute the following SQL as enterprisedb:

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

or

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

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_EDB_PGS_Advanced_Server_v11_Windows_V2R2_STIG.zip

Item Details

References: CAT|II, CCI|CCI-000166, Rule-ID|SV-224133r508023_rule, STIG-ID|EP11-00-000900, STIG-Legacy|SV-109397, STIG-Legacy|V-100293, Vuln-ID|V-224133

Plugin: PostgreSQLDB

Control ID: ef03d41cbc9c3451dc0089c66689dfbfc487730ba57ae8be9fd21a3c5d91c41a