The EDB Postgres Advanced Server must implement cryptographic mechanisms preventing the unauthorized disclosure of organization-defined information at rest on organization-defined information system components.
An XCCDF Rule
Description
<VulnDiscussion>DBMSs handling data requiring data at rest protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. These cryptographic mechanisms may be native to the DBMS or implemented via additional software or operating system/file system settings, as appropriate to the situation. Selection of a cryptographic mechanism is based on the need to protect the integrity of organizational information. The strength of the mechanism is commensurate with the security category and/or classification of the information. Organizations have the flexibility to either encrypt all information on storage devices (i.e., full disk encryption) or encrypt specific data structures (e.g., files, records, or fields). The decision whether and what to encrypt rests with the data owner and is also influenced by the physical measures taken to secure the equipment and media on which the information resides.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-259291r938926_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Create an encrypted partition to host the "<PostgreSQL data directory>" directory. This can be done at the OS level with a technology such as db-crypt or other encryption technologies provided by third-party tools.
If only certain columns need encryption, use pgcrypt to encrypt those columns as documented here:
http://www.postgresql.org/docs/current/static/pgcrypto.html
Note: Starting in Version 15, EDB Postgres Advanced Server natively supports Transparent Data Encryption (TDE): https://www.enterprisedb.com/docs/epas/latest/epas_security_guide/tde_feature/