4.2.42 Restrict Access to SYSCAT.VARIABLES

Information

The SYSCAT.VARIABLES view contains global variables. It is recommended that the PUBLIC role be restricted from accessing this view.

Rationale:

Any databases created without the RESTRICT option automatically GRANT the SELECT privilege to PUBLIC for SYSCAT views. Therefore, it is strongly recommended to explicitly REVOKE the SELECT privilege on the SYSCAT.VARIABLES view from PUBLIC to reduce risk to the organization's data.

Solution

Perform the following to revoke access from PUBLIC.

Connect to the Db2 database.

db2 => connect to <dbname>

Run the following command:

db2 => REVOKE SELECT ON SYSCAT.VARIABLES FROM PUBLIC

See Also

https://workbench.cisecurity.org/benchmarks/10752

Item Details

Category: ACCESS CONTROL, MEDIA PROTECTION

References: 800-53|AC-3, 800-53|AC-5, 800-53|AC-6, 800-53|MP-2, CSCv7|14.6

Plugin: IBM_DB2DB

Control ID: dddcaa71cb5e2976b768f5a9759735106f0e3210351969f7c9bd47c6d6952320