EnterpriseDB Postgres Advanced Server (EPAS) Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000495-DB-000328
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SRG-APP-000495-DB-000329
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SRG-APP-000496-DB-000334
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SRG-APP-000496-DB-000335
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SRG-APP-000498-DB-000346
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SRG-APP-000498-DB-000346
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SRG-APP-000498-DB-000347
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The EDB Postgres Advanced Server must limit the number of concurrent sessions to an organization-defined number per user for all accounts and/or account types.
Database management includes the ability to control the number of users and user sessions utilizing a DBMS. Unlimited concurrent connections to the DBMS could allow a successful Denial of Service (...Rule Medium Severity -
The EDB Postgres Advanced Server must integrate with an organization-level authentication/access mechanism providing account management and automation for all users, groups, roles, and any other principals.
Enterprise environments make account management for applications and databases challenging and complex. A manual process for account management functions adds the risk of a potential oversight or o...Rule High Severity -
The EDB Postgres Advanced Server must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.
Authentication with a DOD-approved PKI certificate does not necessarily imply authorization to access the DBMS. To mitigate the risk of unauthorized access to sensitive information by entities that...Rule High Severity -
The EDB Postgres Advanced Server must protect against a user falsely repudiating having performed organization-defined actions.
Nonrepudiation 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 infor...Rule Medium Severity -
The EDB Postgres Advanced Server must provide audit record generation capability for DOD-defined auditable events within all EDB Postgres Advanced Server/database components.
Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit rec...Rule Medium Severity -
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.
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. ...Rule Medium Severity -
The EDB Postgres Advanced Server must generate audit records when privileges/permissions are retrieved.
Under some circumstances, it may be useful to monitor who/what is reading privilege/permission/role information. Therefore, it must be possible to configure auditing to do this. DBMSs typically mak...Rule Medium Severity -
The EDB Postgres Advanced Server must generate audit records when unsuccessful attempts to retrieve privileges/permissions occur.
Under some circumstances, it may be useful to monitor who/what is reading privilege/permission/role information. Therefore, it must be possible to configure auditing to do this. DBMSs typically mak...Rule Medium Severity -
The EDB Postgres Advanced Server must produce audit records containing sufficient information to establish what type of events occurred.
Information system auditing capability is critical for accurate forensic analysis. Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate t...Rule Medium Severity -
The EDB Postgres Advanced Server must produce audit records containing sufficient information to establish the outcome (success or failure) of the events.
Information system auditing capability is critical for accurate forensic analysis. Without information about the outcome of events, security personnel cannot make an accurate assessment as to wheth...Rule Medium Severity -
The EDB Postgres Advanced Server must include additional, more detailed, organization-defined information in the audit records for audit events identified by type, location, or subject.
Information system auditing capability is critical for accurate forensic analysis. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough infor...Rule Medium Severity -
The EDB Postgres Advanced Server must be configurable to overwrite audit log records, oldest first (First-In-First-Out [FIFO]), in the event of unavailability of space for more audit log records.
It is critical that when the DBMS is at risk of failing to process audit logs as required, it take action to mitigate the failure. Audit processing failures include: software/hardware errors; failu...Rule Medium Severity -
The EDB Postgres Advanced Server must protect its audit features from unauthorized access.
Protecting audit data also includes identifying and protecting the tools used to view and manipulate log data. Depending upon the log format and application, system, and application log tools may ...Rule Medium Severity
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