Title

Software, applications, and configuration files that are part of, or related to, the EDB Postgres Advanced Server installation must be monitored to discover unauthorized changes. (Cat II impact)

Discussion

If the system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. Accordingly, only qualified and authorized individuals must be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. Monitoring is required for assurance that the protections are effective. Unmanaged changes that occur to the database software libraries or configuration can lead to unauthorized or compromised installations.

Check Content

Review monitoring procedures and implementation evidence to verify monitoring of changes to database software libraries, related applications, and configuration files is done. Verify the list of files and directories being monitored is complete. If monitoring does not occur or is not complete, this is a finding.

Fix Text

Implement procedures to monitor for unauthorized changes to DBMS software libraries, related software application libraries, and configuration files. If a third-party automated tool is not employed, an automated job that reports file information on the directories and files of interest (including file permissions and sizes) and compares them to the baseline report for the same will meet the requirement. Use file hashes or checksums for comparisons, as file dates may be manipulated by malicious users.

Additional Identifiers

Rule ID: SV-259234r938755_rule

Vulnerability ID: V-259234

Group Title: SRG-APP-000133-DB-000179

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.