The invoker rights and calling DEFINER brought
Hi all
I tried under scenario where I found that when I created several package in a schema S1 (packages are test_pkg1 and test_pkg2), where test_pkg1 is called in test_pkg2 package with the appellant's rights and granted in test_pkg2 the right to another schema S2.
But when I connect to another schema S2 and I tried running test_pkg2 running test_pkg1. However, I did get his rights to the schema S2.
Question: Rights of the said appellant, program runs according to the user rights of the session. Here only test_pkg2 execution right has a range of schema S2 for when the session is initiated, then why oracle run test_pkg1?
Connection to the S1 schema
CREATE OR REPLACE PACKAGE TEST_PKG1 AUTHID CURRENT_USER AS PROCEDURE PR_1; END; / CREATE OR REPLACE PACKAGE BODY TEST_PKG1 IS pROCEDURE PR_1 AS BEGIN DBMS_OUTPUT.PUT_LINE('INSIDE TEST_PKG1'); END; END; / CREATE OR REPLACE PACKAGE TEST_PKG2 AUTHID CURRENT_USER AS PROCEDURE PR_2; END; / CREATE OR REPLACE PACKAGE BODY TEST_PKG2 IS pROCEDURE PR_2 AS BEGIN DBMS_OUTPUT.PUT_LINE('INSIDE TEST_PKG2'); DBMS_OUTPUT.PUT_LINE('CALLING TEST_PKG1'); TEST_PKG1.PR_1; END; END; / GRANT ALL ON TEST_PKG2 TO S2;
Connection to the S2 schema
CREATE OR REPLACE PACKAGE TEST_PKG3 AUTHID definer AS PROCEDURE PR_3; END; / CREATE OR REPLACE PACKAGE BODY TEST_PKG3 IS pROCEDURE PR_3 AS BEGIN DBMS_OUTPUT.PUT_LINE('INSIDE TEST_PKG3'); DBMS_OUTPUT.PUT_LINE('CALLING TEST_PKG2'); RV2811.TEST_PKG2.PR_2; END; END; / EXEC TEST_PKG3.PR_3;
Output
INSIDE TEST_PKG3 CALLING TEST_PKG2 INSIDE TEST_PKG2 CALLING TEST_PKG1 INSIDE TEST_PKG1
Directly from the documentation (http://docs.oracle.com/database/121/DBSEG/dr_ir.htm#DBSEG99926)
For all other external references, such as direct PL/SQL function calls, Oracle database verifies the rights of the owner at compile time, but does not perform a check of the execution. Therefore, the user of the procedure of the appellant's rights doesn't have privileges on external references outside DML or dynamic SQL statements. Otherwise, the developer of the procedure of the appellant's rights should only grant privileges on the procedure itself and not on all referenced objects directly by procedure rights of the appellant.
Tags: Database
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