4.3.20 Restrict Access to SYSIBM.SYSROLEAUTH

Information

The SYSIBM.SYSROLEAUTH table contains information on all roles and their respective grantees. It is recommended that the PUBLIC role be restricted from accessing this table.

Rationale:

PUBLIC should not have access to see the grants of the roles because this could be used as a point of exploit.

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 SYSIBM.SYSROLEAUTH 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: a7f7c3f5272b5aa15f06955ecd45269994766b7a938553bc93133c93997273dc