Unused database components which are integrated in DB2 and cannot be uninstalled must be disabled.

From IBM DB2 V10.5 LUW Security Technical Implementation Guide

Part of SRG-APP-000141-DB-000092

Associated with: CCI-000381

SV-89155r1_rule Unused database components which are integrated in DB2 and cannot be uninstalled must be disabled.

Vulnerability discussion

Information systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). It is detrimental for software products to provide, or install by default, functionality exceeding requirements or mission objectives. DBMSs must adhere to the principles of least functionality by providing only essential capabilities.Unused, unnecessary DBMS components increase the attack vector for the DBMS by introducing additional targets for attack. By minimizing the services and applications installed on the system, the number of potential vulnerabilities is reduced. Components of the system that are unused and cannot be uninstalled must be disabled. The techniques available for disabling components will vary by DBMS product, OS and the nature of the component and may include DBMS configuration settings, OS service settings, OS file access security, and DBMS user/group permissions.

Check content

Review the system security plan. Determine what DB2 features are recognized as requiring specific access controls. Determine which roles are authorized to use and which may not use the designated features. Review the permissions granted in the database. If any role is permitted to use any feature not designated as authorized, this is a finding.

Fix text

Use the appropriate version of the REVOKE command to remove unauthorized access to the designated features.

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