Secure installation process

MediumLevel 1Manual reviewdb2-zos

Description

The installation SYSOPR authority can be used for the installation and migration of a Db2 subsystem. The installation SYSOPR authority is not allowed access to non- system objects or user data in the subsystem. Using the installation SYSOPR authority instead of the installation SYSADM authority prevents unauthorized access to user objects during installation or migration.

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.

Run the DSNTEJ6Z job to obtain the current values of the SYSTEM OPERATOR 1, SYSTEM OPERATOR 2 subsystem parameters. Verify that one of the authorization IDs that is used for installation or migration has the installation SYSOPR authority.

How it is fixed

Fix method: Guidance or infrastructure patch

1. Edit the DSNTIJUZ job and modify the values for the SYSTEM OPERATOR 1 or SYSTEM OPERATOR 2 subsystem parameter as needed. 2. Submit DSNTIJUZ to assemble the subsystem parameter. 3. Issue the -SET SYSPARM command or stop and restart Db2 for the change to take effect.

Properties

Operating systems: Any
Tags: db2-zoshardening
Reference: CIS IBM Db2 13 for z/OS Benchmark v1.0.0 - 1.1.3 Secure installation process