TMA-DB2-4.2.7

Restrict Access to SYSCAT.CONTEXTATTRIBUTES

OrtaDüzey 1Otomatikdb2

Açıklama

The SYSCAT.CONTEXTATTRIBUTES view contains all the trusted context attributes in the database instance. It is recommended that the PUBLIC role be restricted from accessing this view. Counts grants to PUBLIC on SYSCAT.CONTEXTATTRIBUTES (SYSCAT.TABAUTH); 0 is required. Database-level check: set DB2DBDFT to the database name to audit (the rule connects to it with the instance owner's credentials and fails when DB2DBDFT is unset). Run as the instance owner (or with sqllib/db2profile sourced) so the db2 CLP reads this instance's configuration.

Nasıl denetlenir

Denetim yöntemi: SQL sorgusu

sql_query

db="${DB2DBDFT:?set DB2DBDFT to the database to audit}"; db2 connect to "$db" >/dev/null || exit 1; db2 -x "select count(*) from syscat.tabauth where tabschema = 'SYSCAT' and tabname = 'CONTEXTATTRIBUTES' and grantee = 'PUBLIC'"; rc=$?; db2 connect reset >/dev/null 2>&1; db2 terminate >/dev/null 2>&1; exit $rc

Beklenen çıktı: 0

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

Perform the following to revoke access from PUBLIC. 1. Connect to the Db2 database. db2 => connect to <dbname> 2. Run the following command: db2 => REVOKE SELECT ON SYSCAT.CONTEXTATTRIBUTES FROM PUBLIC

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: db2databaseprivilegescatalog
Referans: CIS IBM Db2 12.1 Benchmark v1.0.0 - 4.2.7 Restrict Access to SYSCAT.CONTEXTATTRIBUTES

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shell

tmaegis scan --target db2