Secure Schema ACCESSCTRL Authority

MediumLevel 1Manual reviewdb2

Description

The Schema ACCESSCTLR authority allows a user grant and revoke privileges within a specific schema. It is recommended that the Schema ACCESSCTRL authority be granted to authorized users only.

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

1. Connect to the Db2 database. db2 => connect to <dbname> 2. Run the following command: db2 => select distinct schemaname, grantee, granteetype from syscat.schemaauth where ACCESSCTRLAUTH = 'Y' 3. Review the list of users, groups, and roles in the above output to ensure only approved users, groups, and roles are assigned.

How it is fixed

Fix method: Guidance or infrastructure patch

Revoke this permission from any unauthorized users. 1. Connect to the Db2 database. db2 => connect to <dbname> 2. Run the following command: db2 => REVOKE ACCESSCTRL ON SCHEMA <schema> FROM USER <username>

Properties

Operating systems: Any
Tags: db2databasemanual
Reference: CIS IBM Db2 12.1 Benchmark v1.0.0 - 6.1.19 Secure Schema ACCESSCTRL Authority