TMA-DB2-4.2.7

Restrict Access to SYSCAT.CONTEXTATTRIBUTES

MédiaNível 1Automatizadadb2

Descrição

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.

Como é verificado

Método de auditoria: Consulta SQL

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

Saída esperada: 0

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

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

Propriedades

Sistemas operacionais: Qualquer
Tags: db2databaseprivilegescatalog
Referência: CIS IBM Db2 12.1 Benchmark v1.0.0 - 4.2.7 Restrict Access to SYSCAT.CONTEXTATTRIBUTES

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

shell

tmaegis scan --target db2