Detections
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4.3.26 Restrict Access to SYSIBM.SYSSCHEMATA

Information

The SYSIBM.SYSSCHEMATA table contains all schema names in the database. It is recommended that the PUBLIC role be restricted from accessing this table.

Rationale:

PUBLIC should not have access to see all the schema names in the database 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.SYSSCHEMATA FROM PUBLIC

See Also

https://workbench.cisecurity.org/benchmarks/23492

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: 5c24ff9e32a4bf481746738fd19254d56ad33e94b05d2453315d275233459b7f