PostgreSQL must generate audit records when concurrent logons/connections by the same user from different workstations occur.
An XCCDF Rule
Description
<VulnDiscussion>For completeness of forensic analysis, it is necessary to track who logs on to PostgreSQL. Concurrent connections by the same user from multiple workstations may be valid use of the system; or such connections may be due to improper circumvention of the requirement to use the CAC for authentication; or they may indicate unauthorized account sharing; or they may be because an account has been compromised. (If the fact of multiple, concurrent logons by a given user can be reliably reconstructed from the log entries for other events (logons/connections; voluntary and involuntary disconnections), then it is not mandatory to create additional log entries specifically for this.)</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-214103r879877_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
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.
First, as the database administrator (shown here as "postgres"), edit postgresql.conf: